Reusable Industrial grade nose mask The Oxypura mask fabric comes with activated carbon layer in them. Filters upto 98% of the air. Material Details Outer most material: Pique 180 gsm poly cotton Activated Carbon Filter: Natural activated carbon customized to adsorb polluting materials, dust particles including industrial emissions Dust Filter: TDK20 non-woven particulate filter and valves. TDK20 provides 99% filtration of particulate matters greater than 3μm (certified from Nelson Labs, USA) Inner Most Material: Cotton fabric white / light blue How to Wash? The mask should be washed after 2 weeks of usage or if found extremely dirty. To wash, you may boil water. After reaching boiling point turn off the fire. Now drop the fabric in the hot water for 3 minutes. Dry and use. You can do up to 3-5 washes. The wash will bring down the life of the fabric over time. The activated carbon is stitched inside and cannot be taken out. Together with the activated carbon there are 3 levels of filtration.
