Replacement filters for the reusable face mask.
PM2.5 FILTER DETAILS:
Size: 4.72 x 3.15 inches, compatible with most adult masks
Products that do not list an explicit NIOSH approval on our website do not carry such an approval and should not be used in OSHA regulated environments without the expressed, written approval of a qualified safety manager or local representative of OSHA. All respiratory and safety equipment, regardless of approval, should not be used without prior medical sign-off by a certified physician.