Protect airways while working with this Honeywell N75002L N Series acid gas cartridge. It's compatible with all North Safety air purifying half-mask and full-face respirators for maximum flexibility and offers protection from chlorine, sulfur dioxide, chlorine dioxide, hydrogen chloride, hydrogen fluoride, and formaldehyde. This Honeywell N75002L N Series acid gas cartridge purifies the air with sorbents, which collect floating particulates and harmful gases, removing them from inhaled air.