The abrasion resistant radial seals have adjustable perimeter spring clips to minimize air leakage. (Patent pending)

The purge sector is adjustable and prevents contamination of the fresh air with the exhaust air avoiding energy losses. (Patent pending)

Three types of storage mass are available: condensation, enhtalpy and sorption. The sorption wheel allows constant humidity transfer winter and summer.

This is a three phase worm gear motor with tensioned V belt drive for constant or variable speed.