Own a respirator but out of cartridge? The 8100 organic vapor cartridge by Moldex is what you need. It is compatible with the 8000 series half mask respirator. It is 100% PVC free and there is a new inhalation valve on each cartridge. There are snap-in mounts on this cartridge so that it can be directly replaced into the slot of your 8000 series half mask respirator in a quick and easy fashion. The snap-in mounts also prevent mis-threading. The organic vapor cartridge protects again particulates and is ideal for applications such as spray paint and pesticide control.