Set includes: 1 mask & 4 filters (2 filters wrapped per pack x 2 packs)
Colors: Black w/ Black Valve, Dark Blue w/ White Valve, Red w/ White Valve
Warning: Last items in stock!
Reusable, washable cloth mask
Hypoallergenic, High filtration capacity
Activated carbon PM2.5 filter mask
5ply layers, PM2.5 filtration with an efficiency rate up to 95%
Change filter after 3-4 days