Week 10 – Dust Masks

***Dust masks do nothing to help contain or control the COVID-19 (coronavirus).  Frequent hand washing, (at least for 20 seconds with soap & water), is your best defense.  Do not touch your face with you hands until your hands are clean.***

Dust masks (particulate respirators) are to be used in the workplace where airborne particulates such as dust and dirt are present as part of the environment.  Dust masks protect your lungs and airways from damage due to the inhalation of airborne particulate matter.  Dust masks are not approved for asbestos exposure or any other airborne hazardous material.  Long term exposure to airborne particulates can cause extreme respiratory problems.

Guidelines for use:

  • Always review the SDS on the chemicals and material that you are working with.  Many chemicals and materials will not be filtered by a dust mask and the use of a respirator is required.
  • Dust masks are to be used for airborne particulates and are not suitable for hazardous levels of vapors and extremely fine particulates.
  • Change your dust mask frequently and whenever you note any discoloration from the accumulation of particulates.
  • Since your airflow will be slightly reduced, it is important to take frequent breaks while wearing a dust mask.  Take all your breaks in fresh air with the mask removed.
  • If you feel faint, or develop a headache, stop work immediately and get some fresh air.  Locate the source of your symptoms, and correct the problem before returning to work.
  • Ensure that your dust mask fits snugly.  If you feel air leaking around the edges of the mask, adjust the mask or switch to a different mask.
  • Dust masks are to be used only by one person.  Never share or re-use dust masks.

Conclusion:

Restricting the total you are exposed to an air contaminant is an important method of respiratory protection.  Properly used, dust masks protect workers from hazards, but a dust mask does not eliminate the hazards.  A dust mask is a form of PPE, however, if a dust mask is inappropriate for a particular task, you risk exposure.  Appropriate protection depends upon selecting, wearing, and using the correct PPE properly.

Questions:

  1. Dust masks may be used by more than one person, True or False?
  2. What document determines which kind of respiratory protection you need?
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