It's an economical three-piece assembly that protects the cartridge from water spray and gross ACM (Asbestos Containing Material). Particulate mater that does reach the pre-filter is trapped before reaching the main cartridge filter. When "loaded" with particulates, the entire Prefilter/Cover Assembly can be discarded and replaced. Or, for maximum savings, discard and replace only the inexpensive prefilter.
Approvals & Standards
The OptimFilter XL Prefilter/Cover, along with the OptimAir MM PAPR has NIOSH/MSHA approval.
Applications
Asbestos Abatement Chemical Electric Utility Nuclear Paper & Pulp Sanding & Grinding
Hazards
Particulate and Dust Toxic Atmosphere Non-IDLH Welding
Product Information
Designed primarily for high-dust applications, it extends the life of the OptiFilter XL cartridge. For use with OptimAir MM 2K powered air-purifying respirator (PAPR).