1. Effectively respond to outdoor smog weather conditions and efficiently remove PM2.5 when introducing fresh air (PM2.5 models)

2. High-quality energy exchange cores efficiently recycle cold and hot energy from exhaust air

3. The fresh air and exhaust air ducts are independent and combined with the dual motor design, higher static pressure and longer air supply distance.

4. The internal insulation design of the whole machine allows more complete heat exchange, better energy saving effect, and can effectively reduce operating noise.

5. Large-screen LCD controller, intelligent control, convenience and worry