The Single-Flow Fresh Air Unit is a fundamental and widely used ventilation system that creates negative indoor pressure through mechanical exhaust, passively drawing filtered outdoor fresh air inside. It continuously extracts stale indoor air (CO₂, odors) while fresh outdoor air enters through pre-installed intake vents, completing the air exchange cycle.
Residential ventilation for apartments and villas; commercial spaces including offices, meeting rooms, internet cafés, and gyms; public and industrial facilities such as schools, hotels, laboratories, factory workshops, and basements. Ideal for projects with budget constraints or higher ceiling clearances.
The core principle is "forced exhaust, natural supply." The exhaust fan continuously extracts stale indoor air through ductwork, creating a negative pressure zone; to balance air pressure, fresh outdoor air naturally flows through intake vents installed in bedrooms and living areas, passing through filter screens before entering the room, achieving continuous air exchange.
