• Durable, long-lasting head harness features a 6-strap configuration for a secure fit
  • Soft, silicone nose cup and faceseal are engineered for maximum durability, comfort, and resilience
  • Exhalation valve helps reduce heat and moisture build-up and allows for easier breathing

Comes with one set of filters.

Each cartridge has a color indicator that shows when the rated exposure to mercury vapor has been reached.  The manufacturer recommends replacing the filters every 30 days or sooner depending upon the findings in your hazard assessment.