Having a window fan that helps purify a home’s stale air can benefit a living space.
They also have the added benefit of helping to cool down a home when the air outside is cooler.
There are many good units available, with some of our favorite picks below.
As always, be sure to read the reviews on Amazon, forums, here, or elsewhere to be sure a unit is a good fit for you.
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Our Picks for Best Window Mounted Air Purifiers
- Holmes Window Fan
- PollenTec Box Fan
- Holmes Bionaire BWF0522M
This Holmes unit draws in air from the outside using two fan blades.
It is made to fit into a window and is powered from a 115 Volt outlet.
The dimensions are 22.7 x 11.7 x 5.3 inches and it weighs roughly 5 pounds.
It is a nice low-cost option, with one downside being there is no reverse button for the blades. The unit is easy to move around so turning it about is not that difficult.
This washable air filter is made to fit onto a standard fan and filter out any dust or other debris.
This is a good idea that may even be able to be done in a DIY capacity.
The fan can be made to sit in a window or anywhere and filter out unwanted debris.
The fan is not included and it only comes with the filter.
This three-blade design from Bionaire is compact and fits into a window.
The three fans are set up to move more air quicker and quieter than two-blade designs.
It can be placed vertically or horizontally if needed.
Summary
Windows fans help to filter out air and keep the temperature at a more comfortable level.
Like Whole House fans they circulate the air from the outside to the inside and vice versa.
Unlike whole-house fans, they are cheaper and easier to set up and operate.
They usually work best when a window at the opposite end of a home is opened so the air can flow through the entire home and out. This makes them ideal in a number of scenarios and greatly benefits a home’s air quality.
Setting up a unit is also easy since they don’t weigh much and fit in almost any window. Simply be sure to get one with the correct dimensions to fit your window.