Filters and Accessories
If your mask is vented (there are breathing air-valves on your mask for added air-flow), make sure to purchase refills for VENTED GEAR.
If your mask is NON-vented (there are NO air-valves on your mask), make sure to purchase refills for NON-VENTED GEAR.
If your mask is NON-vented (there are NO air-valves on your mask), make sure to purchase refills for NON-VENTED GEAR.