The Dual-Flow Fresh Air System employs independent supply and exhaust fans to achieve active forced ventilation in both directions. All incoming fresh air is centrally filtered through the main unit's built-in filters. Models with heat recovery achieve PM2.5 filtration efficiency above 97% while recovering exhaust air energy to reduce HVAC operating costs.
Residential applications for apartments and villas with high air quality requirements (PM2.5, CO₂ control); commercial spaces including offices, conference rooms, hotels, and fitness centers; public and industrial facilities such as schools, hospitals, laboratories, factory workshops, and basements.
The exhaust fan forcibly extracts stale air from kitchens, bathrooms, and other areas through ductwork; simultaneously, the supply fan forces filtered outdoor fresh air into bedrooms and living areas through a separate duct system. This supply-exhaust cycle creates an organized, controllable airflow path for thorough ventilation. Models with heat recovery use an enthalpy exchange core to recover energy where exhaust and supply airstreams cross.
