Asbestos is bad stuff! If you’re dealing with it in any way you need proper protection, especially respiratory protection and recent inspections by the Department of Labor and Industries (L & I) have found a problem in many of the supplied air set-up being used.
If you are using suppied air respirators for asbestos remediation rather than pressure demand, you need to make sure that you are supplying your workers with 6 cubic feet per minute (CFM) rather than the 4 CFM used most commonly in supplied air systems.
In order to make sure you are providing the correct CFM, you need to install a rotameter to your air system and make sure that all “replacement hoses and other respirator parts are made by the same manufacturer and verify they are part of the manufacturers NIOSH-approved configuration.”
For more information, download the “Special Air-Flow Requirements for Asbestos” document provided by L & I Division of Occupational Safety and Health (DOSH) and available for download on our website at http://www.nationalsafetyinc.com/58038/Respiratory-Protection.html
(Click on the “Respiratory Requirements for Asbestos Abatement” link in the “Items of Interest” box on the right hand side of the screen)