Summary
: • : Replaces valves for Techno™ City™ & Nitesight™ Masks
: • : Medical grade silicon rubber diaphragms
: • : Interchangeable with all masks
: • : Releases heat, water vapour and CO2 out of the mask

Detail
The Techno™ valve is robust and is perfect for town use. However it does not have the same characteristics as the Powa™ valve when it comes to higher breathing rates associated with physical exertion.