 When working with biohazard materials, you have to also exercise precaution when using the biohazard materials and when getting rid of them. So biohazard materials are basically any body fluid like blood, urine, or any biological materials such as cells or organisms like bacteria. Those are considered biohazard materials. So if you are in a lab where you're required to use a particular biohazard material, the important thing is to treat all these specimens as if they were infectious. Whether or not you know if they're infectious, you need to be careful. So treat all specimens as if they were infectious. So it is important to also wear your gloves. You need to wear your eye gear to protect yourself from any splashes that could occur because infectious materials can splash into the eyes and cause you to get an infection. So you have to also be careful. And when you have used your biohazard, you need to dispose of them so you can use a biohazard container as small as this. Let us say you are handling a very tiny amount of blood. You can discard the tube with the blood in it in this biohazard bag. And they have containers as big as this. So if you were working with large samples, for example, bacteria grown on certain plates and you're finished using the bacteria, you can dump them into a bin that has, if you notice, the symbol biohazard is located on these containers. And that will tell you that you're, that is the container for biohazard waste.