Bionaire Twin Reversible Airflow Window Fan Review

In the case of window fans, you usually want to look at areas such as cost, what specs they have, whether they are from a reputable company, and more. Pay attention to the size of the fan, as not all fans fit all windows.

You should also familiarize yourself with the various functions that come with it, such as remote control, various settings, etc. It is also useful to read customer reviews. If many users have left positive reviews about a particular fan model, then you will be able to buy with no worries.

Today, we’ll be reviewing Bionaire Twin Reversible Airflow Window Fan, which is available on Amazon.

Bionaire Twin Reversible Airflow Window Fan Features

The Bionaire Twin Reversible Air Window Fan, as the name suggests, has two separate fans that keep fresh air inside and expel stale air. This fan has also been clearly engineered to show Bionaire’s attention to detail in everything, even though the fan model itself is pretty old.

If you look at Amazon reviews for this fan, you will see that reviews are consistently four out of five stars and have over 8,000 customer reviews. With so many reviews, you will always be able to better relate to product quality.

Here we have the best window exhaust fan with a great combination of useful features. It integrates If a product has received five stars, but there are only three customer reviews, you may be hesitant to buy.

  • Pros
  • Programmable digital electronic thermostat
  • Adjustable built-in expansion panel
  • Extensions for window frames of different sizes
  • Electrically reversible airflow control
  • Digital LED display allowing you to check the current temperature
  • Cons
  • Hard to clean


This model comes with a five-year warranty against defects. Fan length is typical or even higher than average. If you want to add an optional three to four-year home property protection plan, you can go ahead. This is what Amazon offers, not Bionaire. The three-year plan costs an additional $7.99, and the four-year plan costs $9.99.


The Bionaire Twin Airflow Reversible Window Fan is built very well in terms of its utility. But, white plastic does not hold up well for many years of use and gets dust and airborne particles very quickly, unlike Broan-Nutone 512M. However, the main components like the motors, fans themselves, control panel, and buttons on the remote control are very well designed and should serve you for years to come.


This extractor fan is equipped with an electronic thermostat with a digital display for automated control. And you have access to the remote control and control keypad to make any manual changes. All these functions work great in such a fan. However, it is pretty tricky to clean it up.

Performance and Power

As you probably guessed by now, with two dedicated fans, this unit is a powerful motor. The airflow is fully adjustable and also electrically reversible. A digital thermostat helps the fan maintain the indoor temperature by discharging hot air and drawing in cold air, or vice versa. And there are three-speed settings that you can easily select.


Considering all the features, it’s pretty easy to say that the Bionaire window fan is well worth it. It has features that even double-priced exhaust fans cannot offer. But finding it at its manufacturer’s suggested price is a tricky task as it is ancient. That said, customer reviews on just about every storefront are suitable for this fan, and for a good reason.

Sound Level

This is another point to note that this fan remains relatively quiet at all times. It’s not bad if you plan on running it while you sleep. Lower speeds are also possible because no matter how low you set the fan speed, outside air never enters inside and does not change the room temperature.

Wrap Up

With incredible features, the Bionaire Twin Window Fan is undoubtedly the best window exhaust fan for this budget. If you have over $50 set aside for your next exhaust window fan, this should be your best choice.

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