DayZ Wiki
Gas Mask Filter
GP5GasMask Filter
Category Attachments
Used By Gas Mask, NBC Respirator
Repairable With Irrepairable
Size 4 Slots (2x2)
Weight 300 g (0.7 lb)
Weight Quantity 0.2
Quantity 150
Absorbency 24.9
Durability 80
Locations Krasnostav Airfield (yellow medical tents)
On the bodies of NBC Infected inside a Contaminated Zone
Rarity Unknown
A respirator cartridge. Designed to fit the most common gas masks mounts. — In-game description

The Gas Mask Filter is an attachable filter for the Gas Mask and NBC Respirator in DayZ, introduced in 1.14 Experimental. A filter must be attached to a gas mask to enter a contaminated zone without contracting the contamination illness, alongside wearing a full NBC suit.

Filters used outside of contamination zones will deplete after around 80 minutes, whereas using it inside a zone will deplete it in 8 minutes. Filters cannot be refilled anymore using Charcoal Tablets but can be used to craft a Improvised Gas Mask Filter.

When the Gas Mask Filter is nearly depleted, the player's character can be heard gasping for air due to the lack of oxygen. This is an audible cue that it's time to switch out the filter or get out of the toxic zone and remove the mask.