Opening a window can make your air feel less stuffy, but this isn't practical during the hotter and colder months of the year, plus it invites pollen and other allergens into your home. A Healthy HOLTOP heat energy recovery ventilator (ERV) helps keep your air fresh without creating a potentially uncomfortable situation.

Holtop manufacturing headquarter is located at the foot of Beijing Baiwangshan Mountain, covering area of 30,000 square meters. The manufacturing base is in Beijing's Badaling Economic Development Zone, covering an area of 60 acres, with an annual production capacity of 200,000 units of air heat recovery equipments.