O2Flow Replacement Filter Box/10pcs (Net $9.95/pc)

NEW - 4-layer super-strong composite filter for air purification
HEPA combined filter four-stage filter system (HEPA filter, activated carbon, sterilization
membrane, medical non-woven fabric), which efficiently removes fine particles in the air with a
diameter less than or equal to 2.5 microns (equivalent to 1/24 of human hair) Particulate matter,
such as viruses, bacteria, exhaust gas, formaldehyde, pollen, dust, allergens and other harmful
substances, the purification efficiency is up to 98.8%, which really plays a defensive role in
blocking harmful substances from entering the human respiratory tract and damaging the
respiratory tract.

Notice: PPE products are not subject to our return policy and may not be returned. This includes: face masks, face shields, gloves, table shields and sanitizers.