3M 60921 Organic Vapour/P100 Cartridge/Filter (1 Pair) Airmovers It appears in the DriMaster

It appears in the DriMaster parts breakdowns alongside the window (041-406)

but the manufacturer does not publish a description of what it is or how it works

or downdraft air mover after cleaning

NPT is a 60 degree thread form

3M 60921 Organic Vapour/P100 Cartridge/Filter (1 Pair) Airmovers It appears in the DriMasterThe 3M 60921 is a combination cartridge and filter: an organic vapour cartridge with a P100 particulate filter attached, supplied as one pair. It fits 3M bayonet style facepieces and is the cartridge CCW stocks for mould and fire remediation work, where crews face both airborne particulate and the solvent odours that come off cleaning chemicals, sealers and smoke damaged materials. Cartridges are consumables. The facepiece is bought once and