LOOKING AFTER YOUR VALVES

The valve consists of the main body (on the outside of the mask) and a locking fastener (seen on the inside of the filter) these two components lock together and so should not fall off. They do not require replacement and to maintain hygiene should be flushed through with warm water from a tap to remove any tissue salt build up. 

Please also see the video for changing the filter as this will confirm how the valve locks in place.