7
Central vacuum cleaning apparatus; centralised vacuum cleaning systems for domestic and industrial applications; Vacuum cleaners for industrial purposes; Vacuum cleaners for domestic purposes; Vacuum filters; air suction machines; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Dust filters and bags for vacuum cleaners; Vacuum cleaner hoses; parts and fittings for the aforesaid
11
Ventilation apparatus; Extractor units [ventilation]; Industrial ventilation apparatus; Ventilation [air-conditioning] installations and apparatus; HVAC systems (heating, ventilation and air conditioning); Air heat recovery installations; Air heat recovery apparatus; Air filters; Extractors [ventilation or air conditioning]; Extractor fans; Dust filters; parts and fittings for the aforesaid
37
Installation, maintenance and repair of Central vacuum cleaning apparatus, centralised vacuum cleaning systems for domestic and industrial applications, Vacuum cleaners for industrial purposes, Vacuum cleaners for domestic purposes, Vacuum filters, air suction machines; Installation, maintenance and repair of Dust exhausting installations for cleaning purposes, Dust removing installations for cleaning purposes, Dust filters and bags for vacuum cleaners, Vacuum cleaner hoses; Installation, maintenance and repair of Ventilation apparatus, Extractor units [ventilation], Industrial ventilation apparatus, Ventilation [air-conditioning] installations and apparatus, HVAC systems (heating, ventilation and air conditioning), Air heat recovery installations, Air heat recovery apparatus; Installation, maintenance and repair of Air filters, Extractor units [ventilation], Extractors [ventilation or air conditioning], Extractor fans, Dust filters