Apparatus and installations for heating, steam generation, [ refrigerating, ] drying, ventilating, and humidifying, for the textile industry and the food industry as well as for woods and goods made of wood, namely, heat sinks for use in heating; cooling and ventilating apparatus, namely, humidifiers, steam generators, [ industrial dryers, ] vacuum pumps [ and ventilators ] ; vacuum steam generators comprised of steaming chambers, cooling chambers, heating coils and bars; all of the foregoing used to generate steam for conditioning and humidification, relaxing, twist setting, pre-shrinking, fixating and stabilization of textile fibers, yarns and fabrics with natural moisture retention, and parts and fittings therefor; thermal, [ gas, ] phytosanitary and sterile treatment installations for synthetic and natural fibers, yarns and threads, cloths and textiles as well as for types of wood and for tobacco, namely, sterilizers, [ ozone generators ] that kill mold and mildew, steam heating apparatus designed to treat wooden packaging material, and parts and fittings therefor; sterilization, disinfection and drying apparatus and instruments for the textile industry, the food industry, medical engineering [ and for medical goods, namely, gas injectors for disbursing solids and/or liquids for purification and sterilization purposes, and parts and fittings therefor ]