GRD-01 - a mask built to last.Cordura ® NYCO ripstop, X-Pac, and TPU textilesHEIQ ® V-Block and DWR treatedOrganic bamboo cotton with PM 2.5 filter slotRugged ABS buckle adjustersMulti-use shock cord: hands-free hanging tighter fitment ear tension relief
See below for sizing specifications.
The GRD FLTR (10 pack of mask filters) is a five layer, activated carbon filter that you can pass through your mask filter slot, and is designed to fit in all sizes of the GRD-01.
The five layers include: Non-woven (2x), Melt blown fabric (2x), Activated carbon (1).
Please read disclaimer on GRD-01 product page.