AirLock port INHALE/EXHALE - nato 40mm

Airlock Port is a screw-in connector piece that fits onto your mask, allowing you to attach a filter, hose, or similar accessory. Inside the port is a one-way valve that only allows air to pass in one direction at a time. This valve can be reversed, letting you choose whether the port allows inhale-only or exhale-only airflow. Type: male+female Material: PLA Package contents: 1x AirLock port INHALE/EXHALE - nato 40mm