E & K Air Purify Services Limited is a Co. comapny with E & K Air Purify Group Limited. It is one of the few companies in Hong Kong that can provide lasting professional air purification services. Services include deep disinfection services, photocatalyst disinfection services, formaldehyde removal and TVOC services, and professional air-conditioning system cleaning and disinfection services. Regardless of large housing estates, industrial and commercial buildings, retail stores or even residential units, Yajie Air Purification can provide customers with comprehensive solutions.