| 摘要 |
Apparatus to effectively destroy, at least in the respiratory tract, microorganisms of the type associated with the common cold, influenza, and the like. The apparatus comprising a refrigeration unit (3) to adjust the temperature of air to a level effective against the aforesaid microorganisms, and ducting (4) including a face mask (8), equipped with suitable non-return valving (5) and (7), supplying the cooled air to the respiratory tract. |
