DING YU

Air-conditioning apparatus; Air-conditioning installations; Air-conditioning, air cooling and ventilation apparatus and instruments; Air conditioning units; Air purifying apparatus and machines; Combination ozone sanitizer and electric deodorizing units; Electric air deodorizers; Electric fans; Electric fans for personal use; Fans for air conditioning apparatus; Gas scrubbing apparatus; Ventilating exhaust fans; Ventilating fans for commercial and industrial use; Ventilation hoods for laboratories; Water purification installations; Water softening apparatus and installations