Refrigerating appliances and installations; drying apparatus and installations; refrigerators, cooling apparatus and freezers for medical storage purposes; cooling apparatus and appliances; apparatus for freezing; drying installations; air filtering installations; filters for refrigeration systems; antibacterial filters for dehumidifiers; filters for sanitary apparatus; burners and heaters for laboratory use; disinfectant apparatus for medical purposes; disinfectant apparatus; ultraviolet ray...