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The Lasko B20312 is a 20-inch box fan with three speeds and a weather-resistant motor, so it can sit in a window to pull in fresh air or push out stale air. Lasko rates it at up to 1,725 CFM, and the Wind Ring grille is shaped to push air faster than a plain square grille. The steel frame is light and has a carry handle, and the Blue Plug is a fused safety plug. It suits bedrooms, garages and window ventilation on a budget. Against premium air circulators it moves a lot of air for the size but is louder and offers no remote, timer or thermostat. Owners rate it highly, with noise and the plastic feel the usual complaints.
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Owners rate the B20312 highly and mostly praise how much air it moves for a box fan. Complaints center on noise at the top speed and the light plastic build.
The Lasko Cool Colors 20-inch box fan has three speed settings. It moves up to 1,725 CFM of air. Its Wind Ring grille design increases air velocity for stronger circulation.
The motor is weather-resistant, so the fan can be used safely in a window to bring in fresh air or exhaust stale air. The frame is lightweight steel with a carry handle, which makes the fan easy to move. It includes Blue Plug safety technology.
