Electrical and electronic control apparatus for use with apparatus or installations for heating; electrical and electronic control apparatus for use with apparatus or installations for ventilation; electrical and electronic control apparatus for use with apparatus and installations for air conditioning; electrical and electronic control apparatus for use with apparatus or installations for air freshening; electrical and electronic control apparatus for use with apparatus or installations with electric fans

Ventilating apparatus and installations; air-conditioning apparatus and installations; air moving apparatus and installations; air freshening apparatus and installations; air-purifying apparatus and installations; air filtering apparatus and installations; fans; fans and fan systems incorporating a light or lights; heat exchangers