The Fresh-r In-The-Wall keeps interior air healthy without wasting energy. The device is thinner than any other heat recovery ventilation system and can therefore be installed inside an exterior wall. It works like a breathing window.
The Fresh-r refreshes the air automatically and de-centrally, without pipes. As moisture in the air increases or if oxygen levels decrease, then the device starts to ventilate (more). The core of woven copper recaptures heat from the outgoing stale air to warm up incoming fresh air. This saves hundreds of Euro on heating costs each year and is ideal for energy-neutral living.