A gasmask, but with some cyber aesthetics-Comes with two different frames-May require an additional gasket or ffp type mask cutout for extra insulation-Tanks are designed to be filled with active carbon or your filter of choiceFront piece may need to be sealed or covered from behing with cloth/plastic-looks sick when printed in resin-universal fit, scaling is not really necessary but encouraged if needed-Tree supports at 2.5-5 density are recommended-tanks may need to be printed at 0.12 to 0.24 layer height for optimal gasket and threading performance-remove filter plugs with tweezers or pliers when unscrewing (a screwdriver with flat tip may do the job aswell)-resin printing is highly recommended for this piece but not exclusive-screw holes are 3 mm wide