Germicidal lamps for purifying air; Gas burners; Ventilation apparatus, namely, turbine ventilators; Ionization apparatus for the treatment of air; Ionization apparatus for the treatment of water; Electric air driers; Dehumidifiers; Roof fans; Air deodorising apparatus; Evaporators for air conditioners; Heating devices for vehicles; Adsorption apparatus for generating gas; Air purifying apparatus; Ventilating exhaust fans; Fans for air-conditioning apparatus; Ventilation installations and app...