I will be the first to admit that using a power drill with a dust mask is not something I enjoy. They can be quite annoying. They can be hot and sweaty, and they can get in the way. I don't know of anyone who likes to wear a mask.
Why wear a dust mask
You will find here some common substances in the Occupational Safety & Health Administration (permissible exposure limit) list. Toxic substances can cause airborne particles to be inhaled, which can lead to serious health problems and even death. These toxic substances include lead, asbestos, arsenic, cadmium dust.
You may not have thought of some substances as toxic. Cotton dust, for example, is on the PEL List of Toxic Substances. Researchers continue to discover more information about toxic compounds and dangerous substances. This is why it's important to use a dust mask while on the job.
Potential Hazards in the Air
OSHA has created a list of PELs that will help people know when and what kind of dust mask to wear. These new standards define hazardous substances like asbestos, lead, cadmium, and other toxic substances commonly found at work or in homes.
A New Attitude About Dust Masks
Industry leaders are now reexamining the importance of wearing a mask and breathing apparatus as health care places more emphasis on employee health. Iowa State University's Environmental Health and Safety division is now requiring employees who refuse to wear a mask to undergo respirator training and be subjected to more frequent medical screenings.