 Respirators, nobody likes or wants to wear a respirator. They've been around since the turn of the century. Probably the first respirator was a damp handkerchief tied around your face. And just like the respirators today, their purpose was to clean the area you breathe. There are many different styles, types, sizes and shapes of respirators available today, but this video will focus on the most common use. This is Joe from Silica Dust. We hope it helps you to understand how important your respirator is in protecting your health. Respirators, your last defense. This is Joe. He's just getting started here. We had a few questions about respirators. Let's talk over here. The primary means of controlling silica dust is in engineering controls. This is like ventilation systems, dust collectors. Now, these pieces of equipment, they help keep the dust from getting into the air. But there's also other controls that we need to use, such as limiting the time that you're in a dusty area. Also, good work practice. That's very important in controlling silica dust. EMSHA, that's the Mind Safety Health Administration. They say that while required engineering controls are being stalled, workers also should wear respirators. Under the Mine Act, EMSHA, they are responsible for the health and safety of all America's miners. So they are the ones that regulate how we use respirators on the mining properties. Also, EMSHA says respirators can be used for occasional entry into hazardous areas like confined spaces or in situations where engineering control measures have not been developed. We also use respirators in combination with our engineering and other control measures to provide even more protection than is required under EMSHA regulations. It's currently not possible to measure instantaneously the amount of silica in the air that you breathe. We don't want anyone to even have a remote chance of getting silicosis. It's for that reason that we sometimes use respirators as a backup to our engineering and other control measures in some operations. Well, let me ask you a question. Could I use any respirator to paint my car? No, most of the time we only need protection against dust at this mine. Other hazardous materials like vapors from painting require special filters and canisters approve for that hazard. It's important to know that respirators that filter dust cannot supply oxygen or provide any protection where there's not enough air. They also can't provide protection for any contaminants other than those for which they've been approved. You should always know the limitations of your respirator. Now here at this plant, your primary exposure will be the silica dust. Now most of the dust generated in this plant is from crushing or grinding rock, loading trucks, screening, other material handling. Now the ore that we handle contains silica. Now the other types of mines there or may contain other hazardous materials. And that's why the company sampling program analyzes the ore to understand its potential hazards. You should always know what you're handling. That's right Bill, but our primary concern at this mine is dust that's small enough to get inside your lungs. Dust that is normally considered small enough to enter the breathing system is called respirable dust. We have many processes in industrial sand plants that generate dust particles. These particles cannot be seen by the naked eye. However if there are many of these small particles it may be possible to see them in a beam of bright light. Just remember, just because you can't see the dust, that doesn't mean it's not there. That's why we take dust samples. Now the dust samples determine what parts of the plant, if any, could be a problem. And if they require additional dust control and respirators. First of all we only use respirators approved by NIOSH, the National Institute for Occupational Safety and Health. Come inside I can explain it better in there. NIOSH is the government agency responsible for approving and testing respirators used by workers. The respirator and the filters must be marked as NIOSH approved. The filters must also be marked as approved for particulates if we use them for protection against silica dust. Now we consider a lot of different factors. Not only must the respirator match the hazard, but it must also match the task to be done and the worker too. Some of the primary factors we consider are the nature and characteristics of the hazard or hazards. The environment where the respirator will be worn. The tasks that need to be done. Next, once we know the situation we can choose the type or design of the respirators. For respirators like this one, which filter the air, the two key features are the face piece and the filters. For respirators like this one, which filter the air but also moves air into the face piece, you also have the blower to consider. This type is called a powered air purifying respirator. All respirators can allow contaminated air to flow in if they don't fit you properly. However, you'll be hearing terms negative pressure and positive pressure respirator. These terms describe design characteristics of the respirator. All respirators where your lungs cause the air to move through the filters are negative pressure. If the respirator has a motor or an air supply, it can be either a positive or negative pressure respirator, depending on how it supplies the air and how much air it supplies. In a positive pressure respirator, the contaminated air can't flow inward around the face piece seal when you inhale because it has so much air going into the face piece from the blower that the air can only flow outward. However, if you've not been fitted properly, even a positive pressure respirator can leak inward because the blower can't compensate enough. There are three types of face pieces, quarter masks, half masks and full face pieces. These face piece designs as well as how the air is filtered and provided into the respirator are used to determine the assigned protection factor or APF as we call it. The APF helps determine the maximum dust concentration in which the respirator can be used. A good rule of thumb for face pieces is the more the face that's covered, the better the protection. The filters also have limitations which determine the maximum dust concentration where you can use them. For particulate filters, there are three types, N, P and R, each with three levels of filtering efficiency. 95, 99 and 99.97%, which we round off to 100, so it's called the 100 type. Some particulate filters are affected by oil and lubricant in the environment. The N type filters are not resistant to oils, cutting fluids, glycerin and other lubricants. R filters are resistant to these materials for only one shift. N and R filters must be thrown away after one shift or specified by the manufacturer, unless there has been scientific testing to show they can be used longer. P filters are oil proof and can be worn for a number of shifts until the filters become difficult to breathe through or they get damaged or soiled. Depending on the work situation, you could wear any of the nine different filters for silica. For ground silica operations, NIOSH recommends the use of the 100 series. It's the most efficient for removing small silica particles in the air. We've already completed the selection process for our hazards and we generally use half mask negative pressure respirators with P100 filters. We always use the 100 series here, but you may get an N, P or R series based on the working environment. Well, you talked about the respirator fitting the hazard or the task, but how will I know the respirator will fit me? Well, we'll determine if you're able to wear one by first having our doctor make sure you don't have any physical or medical problems that may interfere with your ability to wear a half mask negative pressure respirator like this one. Sometimes a previous facial injury or an existing lung condition may disqualify you from wearing a negative pressure respirator. However, you may be able to use a powered air purifying respirator. There are so many types of respirators to choose from that generally, if you are physically able to perform the work, you shouldn't have any problem finding a respirator of some type to use. Well, is that all there is to it? Well, Joe, the next step is to make certain that the face mask fits your face so that contaminated air doesn't leak in around the edges. Right. Suppose, Joe, that the results from the doctor are in and the doctors determine that you're able to wear a certain type of respirator. Now we're going to select the individual respirator and make sure that it fits your face. This is called fit testing. Well, why do you do that? Does one respirator fit everyone? No, not everyone's face is shaped the same. So one size or model of a respirator will not fit everyone. Each manufacturer has different styles of face pieces and cartridges, just like car manufacturers. There's lots of styles and shapes. In addition, they all make a number of sizes for each model. We have to find one that fits you best. Although most people are sensitive about anything that touches their face, a properly fitted respirator is also the most comfortable. There are two basic kinds of fit testing, quantitative and qualitative. The type of fit test determines your assigned protection factor, your APF. Quantitative fit testing requires specialized instruments operated by trained individuals to determine how well your respirator fits your face. It actually takes a measurement of conditions inside and outside the respirator and compares them to determine your personal fit factor. Qualitative fit testing relies on your ability to either taste or smell a test agent such as banana oil, saccharin or irritant smoke that's sprayed outside your respirator. If you can taste or smell the agent, you are not getting a satisfactory fit. Qualitative fit testing is not as sensitive as quantitative fit testing, so you can only get a fit factor up to 10. For us, this means you can only use this respirator in dust concentrations up to 10 times the exposure limit, even if the cartridge would allow a higher concentration. For example, if the exposure limit for the dust is 0.5 milligrams per cubic meter, then you can wear the respirator in areas that have as much as 5 milligrams per cubic meter of dust. If you need more protection than 10, you must have a quantitative fit test. It's also important that fit tests follow a recognized procedure. Even though the qualitative fit test relies on taste and smell, you can't use just anything. There are specific procedures that must be followed in order to ensure you get the right fit. Well, what kind of fit test do you use here? We do qualitative testing, which is the most common type used in our industry. Our potential exposures are well below 10 times the exposure limit. Now, before we actually do a fit test, you'll need to pick out a respirator here that you think fits your face best and feels comfortable. Once you've selected the respirator, try it on. Adjust the straps, wear it for a short time, see how it feels. Next, you would do a series of movements and talking exercises to simulate your movements during the work day. If you don't get a good fit, or if the fit test shows leakage into the respirator, we'd have to try another size or type. So, pick a respirator that you might want to wear. Is there anything I have to do to prepare for a fit test? Well, yes. With a tight-fitting face piece, you must always be clean-shading where it meets your face. That's because facial hair in the sealing surface of the respirator or near valves can cause dangerous leaks. Now, this is true whether the respirator is positive or negative pressure. The only types that can be worn with facial hair are those with hoods or helmets which do not have a sealing surface on the face. This valve keeps the contaminated air out of your face piece when you inhale. Anything that can prevent it from laying flat and functioning properly, like hair, can cause you to be exposed. Well, what if I take the test and there is a leak? Then what? First, we would check the position and tightness of the elastic bands that secure the respirator to your face. These should be reasonably tight and in the correct position on your head. We'd also check to see if the respirator was in the correct position on your face, not too high or too low. If facial hair can interfere with the seal of a respirator to your face, we would check it to make sure you had a good seal. If the respirator still didn't fit or was uncomfortable, the next step would be to select another respirator and then repeat the test. We'd continue this process until we found a mask you could wear and pass the fit test. You would not be allowed to wear a respirator on the job without passing the fit test. By the way, you're scheduled for your actual fit test before you start work tomorrow morning. Joe, to make sure you're getting a good fit out into the plant, you must also do a field check every time you put your respirator on. Now, the type of fit check you do depends on the type of respirator you have. It's a quick but important check you must do every time you wear it. Now, for the type that we use here, you must do a negative and a positive pressure check. You simply inhale with your hand covering the filter. You should feel the mask start to collapse. You can see that right now. The collapse means that the mask is working properly and doesn't leak. The next step is to cover the exhalation valve and blow out slightly to see if you can generate a positive pressure inside the mask. If you detect leakage with either of these tests, adjust the straps or reposition the respirator on your face and repeat it. Well, who takes care of the respirators? Well, Emsha requires that the respirators be selected, used and maintained according to the ANSI Standard for Respiratory Protection, Z88.2, as specified by the standard. ANSI is the American National Standards Institute. This standard requires that we establish a maintenance program which ensures that you have a clean and well maintained respirator. It allows you or somebody assigned by the company to do the respirator maintenance. Whoever does the maintenance must be properly trained and follow the company's program for cleaning and sanitizing, inspection for defects, repair and storage. At this plant, everybody is trained to maintain their own respirator. After you're fit tested, you'll be trained on how to care for work. Well, in general, how do I take care of my respirator? Well, it's important that your respirator be cleaned and sanitized daily to prevent the buildup of germs and contaminants. Also, you need to check each part of the respirator, the face piece, straps, valves, etc., each time before you use it. The flexible rubber parts, such as the face piece, must remain pliable to conform to your face. If any parts are defective, worn or missing, they must be replaced before you use the respirator. Now make sure that replacements are from the same manufacturer. Don't ever substitute parts from another style or manufacturer of respirator. If you have any questions, come see me. How about when I'm not using it? That's a good question, Joe. You should store your respirator in a manner that keeps it from becoming damaged, deformed or dirty. Also, keep it away from excessive heat. The supplied bags or even ziplock bags come in handy for keeping it clean. It's a good idea to mark the storage bag so you can tell yours from someone else's. Also, check the manufacturer's instructions before marking on your respirator. Before you ever use your respirator, you'll attend training sessions. This is when you're first hired and every year after that. It'll teach you everything you need to know about your respirator. Now they'll cover in greater detail subjects that we talked about today. The hazards, proper respirator selection, respiratory protection program, medical surveillance, the limitations of your respirator, fit testing, maintenance, cleaning, storage, proper use. They'll go over the company's respiratory protection evaluation program. Well, we'll keep records of your fit testing and training, which we recommend be done annually. Some key points to remember, you must always check your respirator every time you use it. It's your health that's protecting. Wear it correctly. The respirator straps must not be worn over your hard hat. You must change your filters according to the type of filters you're using. Remember, all filters are changed whenever it becomes difficult to breathe through or if they become damaged. And in our filters must be changed after every shift unless the manufacturer specifies differently. If you have any questions, ask. Well, I certainly have learned a lot about respirators. You guys really know your stuff. But how do you remember it all? Well, you can always refer to the company's respirator policy, which is in your health and safety manual. I have another way also. I use the letters in the word respirator. Responsibility is everyone's responsibility to ensure respirators are used safely. Environment. Be aware of the hazards in your environment. Selection. Select the proper respirator for the hazard and the job. Proper fit test. Only wear a respirator if you have passed a proper fit test. Inspection. Inspect your respirator before ever used for warm or damaged parts. Respect the hazard. Silica Dust is a serious respiratory hazard. Adjust. Adjust your respirator properly to maintain a good fit. Training. Take training seriously. It can save your life. Organize programs. A written program consistent with ANSI must be in effect. Respirator. Use it. Wear it. Get your life event. Respirators. Nobody wants or likes to use a respirator. They have existed since the change of century. Probably the first respirator has been a wet cloth tied around your face. And as today's respirators, their purpose was to clean the air you breathe. Today there are many styles, types, sizes and different forms of respirators available. But this video will focus on the most common use, protection against silice dust. We hope it helps you understand how important your respirator is in the protection of your health. Respirators. Your last defense. Hey George, you have a minute. I present you to Joe. He just started and he has some questions about the respirators. Let's talk here. Now, the main way to control the silice dust is through engineering controls. This is like the ventilation systems and the dust collectors. Now, these teams help the dust not enter the air. But there are also other controls that we must use such as limiting the time that remains in a dusty area. Also, the good practice of work is very important in the control of the silice dust. The EMSHA, the Ministry of Health and Security in the Minas, says that while required, engineering controls will be installed. Workers must also use respirators. According to the Minas law, the EMSHA responsible for health and security of all American miners. Thus, they are the only ones who regulate how we use the respirators in the Minas. The EMSHA says that respirators can be used for an occasional entry in dangerous areas with closed spaces with situations where engineering control measures have not been developed. We also use respirators in combination with engineering measures and other controls to provide more protection from the requirer. Currently, it is not possible to instantly measure the amount of silice in the air you breathe. We do not want anyone to have the remote possibility of contracting silicosis. That is why we sometimes use respirators as a support to our engineering measures and other controls in some operations. Well, let me ask you a question. Can I use a respirator to paint my car? No. Most of the time we only need protection against dust. Other dangerous materials such as the paint vapors require special filters and cans approved for that danger. It is also important to know that the respirators that filter dust do not supply oxygen or protect some when there is enough air, nor can they protect against other contaminants for those who are not approved. You must always know the imitations of your respirator. Here in this plant, your main exposure will be the silice dust. Well, most of the dust generated in this plant comes from the mollusk or the wetland of the rock, the trucks of cargo, debris from the crib, or other material manipulation. Now, the mena that we manipulate contains silice. In other types of mena, the mena can contain other dangerous materials. And that is why the Ministry of the Cooperation analyzes the mena to understand its potential dangers. You must always know what you are manipulating. That is correct, Bill, but our main concern in this mena is the dust capable of entering your lungs. The dust that enters your respiratory system is called a breathable dust. We have many processes in the industrial sand plants that generate dust particles. These particles cannot be seen simply. However, if there are many of them, it may be possible to see them in a ray of bright light. Remember that it is only because the dust cannot be seen if it does not mean it is not there. That is why we take dust samples. Now, the dust samples determine which parts of the plant, if there is any, can be a problem and additional dust and respirator controls are required. First of all, we only use approved respirators by the NIO, the National Health Institute of Copational Security. Come in, you will be able to explain better. The NIO is the government body responsible for approving the respirators used by workers. The respirator and the filters must be approved by the NIO. The filters must also be approved for particles, and we use them for protection against silice dust. We take into account many different factors. The respirator should not only be suitable for danger, but it must also be appropriate for the task to be carried out and also for the worker. Some of the fundamental factors that we consider are nature and the characteristics of the danger or the dangers, the environment in which the respirator is going to be used and the tasks that must be carried out. Then, once we know the situation, we can choose the type or design of the respirators. The two fundamental characteristics for respirators like this, that filter the air, are the face part and the filters. For respirators like this one that filter the air, but also move the air in the face part, you must also consider the compressor. This type is called a purifying air purifier. All respirators can let air flow contaminated if they are not placed correctly. However, you will hear terms like positive and negative pressure respirators. These terms describe the characteristics of design. All the respirators in which the lungs make the air move through the filters, are negative pressure. If the respirator has a motor or an air supply, it can be positive or negative pressure, depending on how the air enters and supplies itself. In a positive pressure respirator, the contaminated air does not flow into the face, when it is inhaled, because it has so much air from the compressor's face that it only flows out. However, if you have not placed it correctly, even a positive pressure respirator can filter into it, because the compressor does not compensate enough. There are three types of face parts, masks of one quarter of a face, half masks and full face parts. The designs of these parts, as well as the way in which the air is filtered and supplied, are used to determine the signal protection factor or APF. APF helps to determine the maximum concentration of dust in which the respirator can be used. A good general rule for face parts is, the more covered the face, the better the protection will be. The filters used also have limitations, which determine the maximum concentration of dust in which they can be used. There are three types of particle filters, N, P and R. Each one with three levels of filter efficiency, 95, 99 and 99.97%, which we round to 100, so that it is called the 100 type. Some particle filters are affected by the oil and lubricants in the environment. N-type filters are not resistant to oil, fluid of cut, glycerin and other lubricants. The R filters are resistant to said materials only during a turn, the N and R filters can be thrown after a turn or according to the manufacturer's specification, except that there has been a scientific evidence that they can be used for longer. The P filters are an oil test and can be used during a number of turns until breathing results are difficult or are damaged or dirty. Depending on the situation of work, you can use any of the nine different filters for silice. To operate on land with silice, Nios recommends the use of the 100 series because it is the most effective. We have already finished the selection process for our dangers and we generally use negative pressure respirators of half a mask with P100 filters. We always use the 100 series here, but you could use a N, P or R series according to your working environment. Well, have you talked about the respirator that is suitable for the danger or the task? But how if the respirator is suitable for me? Well, let's determine if you can use one, ensuring that you do not have physical or medical problems that can interfere with your ability to use a negative pressure respirator like this one. Sometimes a facial wound or a pulmonary condition can disqualify you to use a negative pressure respirator. However, you could use a purifying air respirator if necessary. There are so many types of respirators to choose from that you should not have any problem in finding an adequate respirator. Well, that's all. Well, Joe, the next step is to make sure that the mask is suitable for your face so that the contaminated air does not filter around the edges. Correct, let's suppose now, Joe, that we receive the results of the doctor and he has determined that you are able to use it. Now let's choose the respirator and make sure that it is suitable for your face. This is called adjustment test. Well, why do you do that? The respirators don't look good to anyone? No, the face of everyone has the same shape so that the respirator does not adjust to anyone. Each manufacturer has different styles of face parts and cartridges like car manufacturers. There are many styles and shapes. In addition, everyone makes a number of sizes for each model. Although the majority of people are sensitive to anything that touches their face, an adequate respirator is also more comfortable. There are two types of basic and qualitative adjustment tests. The type of adjustment test determines your assigned protection factor or your APF. The quantitative adjustment test requires specialized instruments operated by qualified individuals to determine how well your respirator adjusts to your face. In fact, it takes a measure of the condition inside and out of the respirator and compares them to determine your personal adjustment factor. The qualitative adjustment test is already in the ability to taste or smell a test agent like banana oil, saccharin or irritating smoke that is roasted out of your respirator. If you can taste or smell the agent, it does not adjust satisfactorily. The qualitative adjustment test is not as sensitive as the quantitative one, so it can only achieve an adjustment factor of up to 10. For us, this means that you can only use this respirator in powder concentrations of up to 10 times the exposure limit. Although the cartridge allows a greater concentration. For example, if the exposure limit for the powder is 0.5 mg per cubic meter, then you can use the respirator in areas that have 0.5 mg per cubic meter of powder. If you need more protection than 10, you must perform a quantitative adjustment test. It is also important that the adjustment tests are still a recognized procedure. Although the qualitative adjustment test is already in taste and smell, you cannot use anything. There are specific procedures that must be followed in order to ensure that you will obtain the appropriate respirator. Well, what kind of equipment and adjustment do we use here? We do qualitative tests that are the most common in our industry. Our potential expositions are below 10 times the exposure limit. Now, well, before we do the adjustment test, you will have to choose a respirator that you think is the best for your face. Once you have selected the respirator, try it, adjust it, use it for a while and look how it feels. Then you will make a series of exercises to simulate your movements during a day of work. If it does not adjust well or if the adjustment test shows the filtration in the respirator, we would have to try another one, so choose a respirator that you want to use. Is there something that it must do to prepare for an adjustment test? Yes. With an adjusted face piece, you must always be affected in the area that the mask touches your face. This is because the facial veil of the respirator close to the valves can cause dangerous filtrations. This is how it is whether the respirator has positive or negative pressure. The only types that can be used with an official veil are those with hoods or helmets that do not have a sealed surface on the face. This valve maintains the air contaminated outside your face when you inhale it. Anything that makes it not flat and working correctly like the veil can expose you. But what happens if there is still a test and there is a filtration? First we will verify the elasticity of the elastic bands that make sure the respirator touches. The same must be done without the correct position. We will also verify if the respirator is too high or too low. And because the facial veil can interfere with the seal, we will verify to make sure that it has a good seal. If the respirator still does not adjust correctly or if it is uncomfortable, we will have to select another respirator and repeat the test. We will continue this process until we find a mask that I can use correctly. It will not allow you to use a respirator without having passed the adjustment test. Whether it is the step, you have programmed your adjustment test for tomorrow morning before starting to work. I, to make sure that you receive an adequate respirator on the plant, you must also make a field verification whenever you place the respirator. Now, the type of adjustment verification depends on the type of respirator you have. It is a quick but important verification that you must do every time you use it. Now, for the type that we use here, you must make a positive and negative pressure verification. Simply inhale it with your hands covering the filters. You should feel that the mask starts to collapse. You can see it right now. The collapse means that the mask is working correctly and does not leak. The next step is to cover the valve of exhalation and blow gently to see if you can generate a positive pressure inside the mask. If you detect a leak with any of these tests, adjust the straps or reposition the respirator on your face and repeat it. Well, in general, how do I take care of my respirator? The MCA requires that the respirators be selected, used and maintained according to the standard ANSI for respiratory protection. CE88.2 as specified in the standard. The ANSI is the United States Institute of National Standards. This standard requires that we establish a training program that ensures that you have your respirator clean and well maintained. It allows you to have someone assigned by the company to do the maintenance of the respirator. Whoever wants to do the maintenance should be properly trained with respect to cleaning and disinfection, disinfection of defects, repair and maintenance. In this plant they are all able to maintain their own respirator. After you have passed the adjustment test you will be able to take care of a respirator. Well, in general, how do I take care of my respirator? Well, it is important that your respirator is cleaned and disinfected daily to prevent it from forming germs and contaminants. You also need to verify each part of the respirator, the face part, the straps, the valves, etc. The flexible rubber parts like the face part should be suitable to adapt to your face. If there are defective parts they should be replaced before using the respirator. Now make sure that the answers are from the manufacturer. Never replace parts from another manufacturer. If you have any questions please let me know. This is a good question, Joe. You must keep your respirator in a way that does not damage it. Also keep it away from excessive heat. Provided bags or even ziploc bags are useful to store it. It is a good idea to mark the bag where you keep it, so you can distinguish the yours from the others. Also check the manufacturer's instructions before marking your respirator. If you do not have a respirator for the first time, you will have to go through training. This is done when you are hired and then every year you will be taught everything you need to know about your respirator. Now we will cover in more detail the topics we have talked about today. The dangers, the choice of the respirator, the appropriate, the respiratory protection program, medical supervision, the limitations of your respirator, adjustment tests, maintenance, cleaning, storage and correct use. They will review the evaluation program of respiratory protection of the company. We will save the precedents of your adjustment test and training that we recommend that it be carried out annually. Some key points to remember you must verify your respirator every time you use it. It is protecting your health. Use it correctly. The respiratory currents should not be placed on top of your helmet. You must change the filters in appropriate form. Remember, the filters must be changed once it is difficult to breathe through them or if they are damaged. The N and R filters must be changed after each turn unless the manufacturer specifies it in another way. If you have any questions, ask. Well, I really have learned a lot about respirators. You know the subject, but how do you remember everything? Well, you can always submit to the company's respirator policy that is in your health and security manual. I also have another way. I use the letters of the word respirator. R for responsibility. It is the responsibility of everyone to make sure that the respirators are used safely. E for environment. Be aware of the dangers in your environment or environment. S for selection. Select the right respirator for the danger and work. P for adjustment. Use a respirator only if you have a corresponding adjustment. E for inspection. Inspection your respirator before each use to see if it has damaged or damaged parts. R for respecting the danger. The powder of silice is a serious respiratory danger. A for adjustment. Adjust your respirator as it corresponds so that it is properly adhered. D for development and training. Take the training seriously. You can save your life. Or for the organization of a program. Be aware of the dangers in your environment or environment. R for respirator. Use it. Put it on. It is your last chance.