Air circulation system for sauna has fan in housing with air inlet at top and air outlet at bottom, connected to battery by switch connected to sensor for air humidity and temperature variations

摘要

The air circulation system is used in a sauna. It incorporates a fan (5) in a housing (2) with an air inlet (3) at the top and an air outlet (4) at the bottom. A sensor (8) for air humidity and temperature variations operates a switch (7) which connects the fan to a battery (6). The fan may switch on automatically when the heat is increased or the humidity is increased by throwing water on hot stones.