1.Dimensions: 600*325*160mm,600*300*160mm,645*310*160mm,690*300*160mm

2. Made from superior engineering plastic, air inlet anti-UV, anti-aging, and long lasting.

3. The use of a reasonably designed protective net helps prevent birds and insects.

4. With a 20 mm polystyrene insulation board filled inside, the air inlet effectively prevents heat dissipation in winter.

5. The patented pully is easy to open and close because rolling friction cusses low friction.

6. The reset spring made of quality stainless steel is durable and rust resistant.

7. During operation, please keep the pressure at the set value of the negative pressure gauge.

8. The air inlet features three opening angles for more reasonable ventilation.

9. Generally, air inlet close to exhaust fan are of small opening angle and those relatively far from the fan are of large opening angle, so as to achieve uniform ventilation.

10. Fantory air inlets is convenient to install, which can be installed in a window area directly.