MSA GMD/P100 Respirator Cartridge — Ammonia And Methylamine/P100 (MSA Comfo) 0194160011348 See the full lineup in GD500-4GAS Fits a common 9x13x3 Fibre-Metal Style:Non-Vented (22507)

See the full lineup in our best fire extinguishers 2026 guide before deciding on size

Premium price for three feature set

The Open-Center design exists to avoid that: stabilization without a rigid plate

OSHA guidance on combination protection estimates effective attenuation as the higher NRR device plus approximately 5 dB added from the second device

and clean-room adjacent operations where the headtop contacts biological

MSA GMD P100 Respirator Cartridge — Ammonia And Methylamine P100 (MSA Comfo) 0194160011348 See the full lineup in GD500 4GAS Fits a common 9x13x3 Fibre Metal Style:Non Vented (22507) See the full lineup in our best fire extinguishers 2026 guide before deciding on size Premium price for three feature set