Electric fans for air-conditioning; Air purifying units for industrial purposes; Air purifiers for household purposes; Air deodorising apparatus; Air filtering installations; Humidifiers; Air cleaning units; Household air cleaners; Air sterilisers; Filters for air conditioning; Ventilating exhaust fans; Gas scrubbing apparatus; Water purification installations; Air-conditioning, air cooling and ventilation apparatus and instruments; Turbine ventilators; Disinfectant apparatus; Germicidal lamp...