 Not all workplace hazards can be seen. Dust, gas, fumes and vapours are often invisible but breathing them in can cause serious lung diseases. Follow these steps to identify if your workers are breathing in hazardous air. 1. Inspect and monitor your workplace. 2. Talk with your workers. 3. Talk with supply chains and networks about the products you are using and 4. Review information from work health and safety regulators, industry associations and safety professionals. For more information on identifying hazards visit our website.