Each filter could last 1-2 month, wash (Using hot water deep the filter in temperature above 56c for 3 min, most viruses die at that temperature our normal house hold kettle boils at 100c so it should do the job) or disinfect (i.e using a Fabric Dettol disinfectant or any fabric disinfectant) the filter every 4-7 days excluding you come into contact with a sick person, then if you do, disinfect daily.
Size: 60cm by 13cm
Comes with 2 Filters
Protection against person to person bacteria/virus infections.
Protection against air borne pollution.
Light and comfortable, also can be carry to use separately.
Anti-Dust, anti-static, anti-scratch with.
Long-term use is not deformed.
Masks installed on both sides exhaust valve automatically open and close, not leak, good filtering effect, not hot non-fogging.
The fabric feels delicate, soft and flexible, with fog, shock, insulation and other characteristics
Effective inhibition of PM2.5, the filtering effect of 99%.