UBRU Activated Carbon Filters Replacements Parts Set of 10 Fits for Most Dust Masks N95 Filters

الوصف

Features Filt out at least 95% of particulates larger than 0.3 microns in diameter. Made of five layers of non-woven and activated charcoal microfiber. How often should I change the filter? Replace them when they look dirty or after about 8-10 hours of wear. It is recmomended to replacing the filter once a week if the mask is used extensively. How to replace the filter? 1. Open the mask to expose the filter and valve. 2. Demount the two valves counterclockwise. 3. Replace the old filter. 4. Mount the two valves clockwise.Package 1 set ( 10 pcs filters)