This fan is also reversible, which is important. If the air cools down significantly at night, you can open a window and put the fan in exhaust mode, which siphons hot air out and pulls cool night ...

$63 from Amazon The Bionaire Twin Reversible Airflow Window Fan was nearly as powerful as ... or switch between the intake and exhaust settings. It actually resists weather. For starters, unlike ...

Meanwhile, Jarden’s Bionaire Twin Reversible Window Fan is our favorite model with a built-in digital thermostat—this one can be adjusted to your exact desired temperature between 60 and 80 ...

3 speed settings: the Avalon high velocity Twin reversible airflow window fan ... this double fan is uniquely designed to simultaneously operate for intake or exhaust purposes with its reversible ...

The Comfort Zone Twin Window Fan stands out for its flexibility and quiet operation. The reversible airflow control allows you to customize your ventilation needs, while the expandable design ...

Though this window fan doesn’t have customizable temperature controls, you can control its airflow with Low, Medium and High speed settings. It also has a Cooling function, an Exhaust function ...

since its Storm Guard feature allows you to close the window behind it while still keeping the fan mounted in place. It’s capable of switching between intake and exhaust fan modes, and could be ...

Fanspex 10” Shutter Exhaust Fan for Bathroom, Window or Wall Mount Air Ventilation Fan for Home Kitchen, Greenhouse, Garage, 490CFM, 42dB quiet 12 ratings ...

TL;DR: As of July 25, you can get the Bionaire Thin Window Fan with Reversible Airflow for just $69.99 instead of $149.99 — that's a 53% discount. If you’ve spent the first half of summer ...

In this case, a window fan with a reversible exhaust system is a great option, as it draws in cool outdoor air and removes hot, stagnant indoor air. If you want something more straightforward ...

But the pricier Bionaire Twin Reversible Airflow Window Fan is worth an upgrade if you ... a window fan can bring in cool air from outside or exhaust stale air from small bedrooms or kitchens.