Best Window Fans

Maintaining proper ventilation in large areas is only possible if you have a powerful whole house fan, just like this AirKing model. This high-performance ventilation system will be most helpful during the summer heat since it promotes a welcome air circulation intaking quite a lot of fresh air from outside. The fan has a powerful motor capable of moving up to 3560 CFM and it's reversible. Thus, you can either move stale air out of your room or get some fresh air in.

Surely enough, this window fan is suitable for commercial use - it will be really helpful in any cafe kitchen, in a small workshop, etc. Equipped with an industrial-grade motor, the AirKing window fan can effectively ventilate large and medium spaces and if you have a small room - it will ventilate it incredibly fast. However, the motor makes noise when set to the highest speed, so if the noise is too loud for you, just select a slower mode. The low settings are particularly comfortable at night.

It is not surprising that this top-quality reversible window fan is made to last. The unit is equipped with a powder-coated stainless steel blade and grills and an impact-resistant plastic housing and only requires simple maintenance.

The Bionaire BW2300 window exhaust fan is an excellent choice if you can't tolerate hot weather and would like to have cool fresh air circulating around your house all year long. The unit has two fans that can move an incredibly large volume of air for their size. Yet, they run without any vibration and are almost whisper-quiet at the lowest speed. By the way, the unit features three different speeds (high, medium, and low) for more controlled airflow. It uses 43 watts on low, 49 watts on medium, and 64 watts on high speed. On the highest setting, the fans run incredibly fast but they are a bit on the loud side.

The 8.5-inch fans are very smartly designed and can work both simultaneously or independently. They can operate in an exchange mode where one fan pushes in fresh cool air from the outside and the other exhausts hot stale air from inside. In other words, two fans can be set independently for a full room air circulation. This reversible fan feature is fabulous, as it gives you an opportunity to draw in cooler air into the kitchen, for example, and exhaust out stuffy air while cooking. This way, it can cool any room you need, however, remember that the outside temperature rules everything. It should be at least ten degrees cooler than the inside temperature.

This twin fan can be mounted on double-hung, vertical-slider, and casement windows. It comes fully assembled and with two solid, and one expandable side extender to fit non-standard windows as well (from 24 to 37 inches wide). The extender panels offer rigid support for either horizontal or vertical orientation. If needed, you can buy additionally the Bionaire 3-inch spacers that can be stacked together to give this fan extra height or width. The Bionaire BW2300 is an excellent 2-in-1 unit that can not only exhaust air from your room but also cool it down a bit. An excellent alternative to AC units.

The HowPlumb window fan is a portable appliance, compact in size, and simple to install. Yet, the unit provides impressive ventilation efficiency. The blades of this fan are designed in a way to provide the maximum CFM rate possible and it varies from 812 to 918 CFM, which is an excellent result for such a compact device. Meanwhile, the unit has a handle that makes it easy to carry, which may come in handy for ventilating different rooms. You can actually place this twin fan in a garage, bathroom, kitchen or any other room to enjoy a breath of fresh air. 

Since this window fan is reversible, it allows for proper ventilation both during the daytime and in the nighttime. The unit offers Cool, Exhaust, and Circulate modes so you will be able to let the cool and fresh outdoor air in at night when there is little traffic and activate an exhaust function to let the stale air out any time of the day. Or, you can use a circulate mode in which the fan's blades rotate in opposite directions, letting the air circulate through your room. All this makes the reversible window fan a great and affordable option for most customers who look for 'effortless' comfort.

For less than $40, you can get an extremely effective double window exhaust fan. It features two 8.5-inch fans with six blades each. The fans can run both simultaneously or independently. This way, you can set one fan on intake and the other one on exhaust during hot nights. The fans will circulate the cool night air through your bedroom, keeping a perfect temperature. Or you can install the fan in the kitchen window to draw in fresh air or exhaust out stale air when cooking.

The fan can operate either manually or automatically. It has a thermostat that can maintain a selected temperature in your room. You can preset 60, 65, 70, 75, or 80 degrees Fahrenheit, and the unit will automatically turn itself off once the sensor detects the selected temperature. Also, you can select low or high mode. The fans run relatively quiet at both speeds. The unit uses about 46 watts on low and 63 watts on high modes. It has a one-touch electronic control for switching between temperature settings and switching device on/off. You'll need to push through every mode to get to "off", which is not very convenient. However, for the price, it's a minor sacrifice. Overall, if you need an affordable twin fan to exchange air with outside, this one will fit the bill perfectly.

If you are looking for a cost-effective device that will help you keep your indoor air fresh and clean, consider the Comfort Zone CZ310R. This reversible window fan offers 3 operating modes. If you need to refresh your room, choose the Cool setting; to quickly remove stale air, use the Exhaust setting. Finally, you can select the Circulate mode in which the blades on each of the fans will move in opposing directions, letting the fresh air in and the stale air out simultaneously. With 3 operation speeds (low, medium, and high), it will be easy to ensure perfect air circulation depending on your needs.

Lightweight and compact, this thoughtfully designed unit is easy to install. Thanks to adjustable expanders on both sides, it will suit most of the windows, just make sure there is a socket nearby. The accordion expanders can be adjusted from 23-1/2" to 37" allowing you to secure the twin fan in place in a snap. Moreover, the unit can be installed vertically so it can be used used in both slider and casement windows. Alternatively, you can place the appliance on your table; ergonomic removable feet are included in the box.