The Silent Air Remover reduces the sound of a board inflated to 18psi from over 130 decibels at initial valve depression to less than 80 decibels. That is the equivalent of a jet taking off in comparison to background noise in a restaurant.  

It is fitted in the same way you would connect a pump hose and has been designed for disassembly meaning all parts can be replaced for easy product maintenance if required. The Silent Air Remover diffuses the initial loud rush of air and after 60 seconds can be removed to allow your board to be deflated in the normal way and has little to no impact on the time required to pack away your SUP.