Cold-Air inflatables are made with a porous fabric meaning air can flow in and out of the inflatable. Cold-air inflatables subsequently come with a built-in air blower. This air blower is either battery powered or powered using an outlet depending on whether or not the inflatable has to be portable. When switched on this air-blower will fill the inflatable with air and keep it inflated. When switched off it will stop blowing air and the inflatable will deflate.