For being a window fan, the Holmes Fan is a very lightweight, which is always a welcome design choice. Although it will fit most windows, we would have liked to see exact window measurements to put our minds at ease that this would indeed fit our window. Check out our best window fan list for more great options!\r\n\r\nWhy We Like It - Holmes Fan\r\nThe Holmes Fan fits most double hung and slider windows and the adjustable extender screen, although a standard feature in most modern air conditioners, is still a welcome addition for a secure fit. It also has independent, electronically reversible motors for better personal control of airflow.\r\n\r\nPerformance\/Power\r\nThe Holmes Fan has independent, electronically reversible motors that allow for air intake, exhaust, and air exchange. It has three speed settings, like the Genesis A1, which is quite difficult to find in an air conditioner nowadays believe it or not, and a comfort control thermostat for an extra layer of personal satisfaction.\r\nDurability\/Build\r\nThe Holmes Fan is designed to fit most double hung and slider windows. Unfortunately, there are not exact measurements for the window size given like in many fans of its class, such as the Bionaire Dual Window Fan. The Holmes fan is actually quite light for a window fan though, weighing in at only 7.5 pounds. It\u2019ll be easy to transport from window to window or from the box to the window.\r\nNoise\/Sound Level\r\nThe Holmes Fan\u2019s product description reads that it has quiet operation. That\u2019s nice to know, but we would have appreciated it if an exact dB rating was given. Customer reviews when it comes to the noise level are generally positive though. Most say it produces just as much background noise as other top sellers. So we\u2019ll have to trust the customer reviews for this category.\r\nVersatility\/Modern Features\r\nThe Holmes Fan contains an adjustable extender screen just like its cousin the Holmes Window Fan. This allows the fan to be placed and secured in larger windows without hassle. The fan also contains a water-resistant motor so it can be used while it\u2019s raining outside without needing to worry that it might break.\r\nValue\r\nThe Holmes Fan may only come in one color, white, but it does also come in two finishes, white or cream. So at least there\u2019s a little choice even if it is just the bare minimum. It comes with a three year manufacturer warranty, which is quite generous. It\u2019s priced high, at least higher than we\u2019d like, but you can get it priced low if you buy it used, which is an option on Amazon.\r\nHolmes Fan Wrap Up\r\nThe Holmes Fan comes with three speed settings, which is an amazing find, but also has a larger price tag attached to it. Still, if you want quality, you\u2019ll need to pay for it. The fan\u2019s motor is also water resistant, so you\u2019ll be able to use it in the rain without worry on those hot, humid, stormy summer days.