New concept in Automatic Ventilating Fan has been welcome by our buyers, preventing the problems associated with
traditional shutter fans. When blades are closed, this product forms a shield against insects and unwelcome odors.

1. Problems with traditional shutter fan

- Shutters break often.
- Shutters reduce ventilation.
- Shutters get rusty.
- When the electric power is off, conventional shutters stay open, letting dust and insects enter freely.
- When running, regular shutter fans spread dust into the air and accumulate dust particles behind the shutters.
- On ordinary fans, closing the shutter after running just creates more dust.

2. Features  with automatic ventilating fan

- No need for additional shutters.
- Shutter maintains good ventilation.
- Even if electric power is off, the blades close automatically with no need for manual control.
- Simple to operate: When turned on, the shutter opens to become the blades of the fan. When off,
   they automatically form a closed shutter. - It is easy to connect the unit to thermostats, gas detectors, etc.
- The blades close completely, forming a shield against insects and unwelcome odors.

250mm expressaire exhaust fan

• Closing blades to shut out insects and prevent back drafts
• Removable blades for easy cleaning
• Capacitor motor
• Fitted with plug and lead

Ideal for large bathroom fan, lanudry, hotel, large kitchen, office

• Blades     : 6 pcs
• Fan dia.   : 254mm
• Voltage    : 110~240V
• Air movement: 900~800m3/h
• Wattage   : 45W
• Full load current: 0.2A
• Motor type: Sleeve bearing
• Noisy         : 53dB