Mini Immersion Breathers are designed for smaller equipment with a limited amount of space available. This equipment includes membrane keyboards, remote control devices, battery packs, and handheld radios. The Mini Immersion Breathers are incorporated with a hydrophobic membrane, and this makes them impermeable for the transfer of liquid. They also allow air to pass through to prevent pressure build-up. Desiccants can also be filled to the Mini Immersion Breathers to dry the air entering the equipment. The breathers are easily installed – screw in the threaded boss or mount using the locknut provided.