electric blankets for household purposes; saunas for household purposes; far infrared warmers for household purposes; electric mats for household purposes; electric floor heating mats for household purposes; electric flat heating mats for household purposes; electrically heated mats for household purposes; water purifiers for household purposes; apparatus for heating, ventilating and air conditioning; heating and cooling apparatus; beds for saunas; alkaline water ionizers; air-conditioning, air cooling and ventilation apparatus and instruments; far infrared heating apparatus; electric fancy mattresses; electric or non-electric footwarmers; electrically heated ondol plates [underfloor heating systems]; chemically-activated heating packs for warming feet or hands, not for medical purposes
Environmental Control Apparatus