Air cooling apparatus; Air purifying apparatus and machines; Air sterilizers; Apparatus for cooking, namely, cooktops; Bathroom heaters; Cooling installations for water; Disinfectant apparatus for medical purposes; Drying apparatus for chemical processing; Electric air deodorizing apparatus; Electric fans for personal use; Filters for drinking water; Germicidal lamps for purifying air; Purification installations for sewage; Radiators, electric; Sterilizers; Water filtering apparatus; Water purification installations; Water purification machines; Water purifying apparatus; Water softening apparatus and installations; Water sterilizers