Holtop is the leading manufacturer in China specializing in the production of air to air heat recovery equipments. Founded in 2002, it has dedicated to the research and technology development in the field of heat recovery ventilation and energy saving air handling equipments for more than 10 years.

Picture	Certification Name	Certified By	Business Scope	Available Date --- Expired Date	Verified
	ISO9001	SGS	Design and manufacture of fresh air ventilator, central-station air handling uits (excluding the heating and refrigeration) and air heating recovery equipment	2014-06-13 ~	Verified
	OHSAS18001	SGS	Design and manufacture of fresh air ventilator, central-station air handling uits (excluding the heating and refrigeration) and air heating recovery equipment	2014-06-09 ~
	ISO14001	SGS	Design and manufacture of fresh air ventilator, central-station air handling uits (excluding the heating and refrigeration) and air heating recovery equipment	2014-06-09 ~

Business Type	Manufacturer, Trading Company	Country / Region	Beijing, China
Main Products	heat recovery ventilator, energy recovery ventilator, air handling unit, fresh air heat pump, air to air heat exchanger	Total Employees	Above 1000 People