Dayton Exhaust Fans w/cord - 265 cfm
Shipping Weight: 15.00 pounds
Quieter and use less power than other fans, but are a little more difficult to mount ducting to.
They also allow light to pass through,
as they have no bends like the other exhaust fans (you can remedy this with a piece of duct hose).
We sell only genuine Dayton brand blowers. You may find other brands that are a few dollars cheaper.
They are typically louder, overheat quicker, and don't last nearly as long.
Air exchange is necessary to help fight CO2 depletion and to cool your grow room down for best plant growth. There's no more efficient way of exchanging air than with an exhaust blower.
Our blowers operate at very high static pressures.
This gives plenty of power to move air down a long tube or from room to room.
All exhaust blowers come ready to mount in place, power cord installed.
To determine the approximate size blower you need, divide the cubic footage of the grow room by 5.
This gives the CFM (Cubic Feet per Minute) of air movement required.
This formula assumes that the blower must be large enough to replace all the air in the room in 5 minutes.
It's better to oversize the fan than getting a fan that is too weak to get the job done.

9" Exhaust Fans - 9122 740 CFM Window Exhaust Fan
Permanently lubricated motor guarantees quiet operation
Compact size fits almost any window!
Fits almost all standard residential windows
Storm Guard feature allows for closed window during inclement weather
For quiet, efficient cooling that always fits, choose the 9" Air King 9122 window exhaust fan. Its compact size, adjusting knob, and secure locking side panels ensure that this unit will fit almost any standard-sized window as well as doorframes and other narrow spaces. The reversible unit can pump stale air out of your room or bring in fresh air from outside. The unique Storm Guard feature allows you to close the window behind the 9" Air King 9122 during inclement weather. The permanently lubricated motor means silent operation, so you can enjoy breezy comfort without the distraction of noisy fan blades.
Positive-locking side panels fit snugly against window frames
6-ft., 18/3-conductor power cord
Manually reversible for intake or exhaust
CFM: 740 / 600
RPM: 1,955
Watts: 42
Amps: 0.98
Dimensions (Inches): 15.1 H x 5.5 W x 22.5 D