A ceiling exhaust fan with retractable blades to stop warm
air escaping or smells/cold air coming back in.

It has a high air capacity of 800m3/hr and sleeve-bearing motor .

Model	Cover (A) mm	Thickness (D) mm	Depth (B) mm	Hole size Round mm	Capacity m3/hr	Watts
ECMIEX250	320	8	120	290	800	45