8 Best Duct Fans (Review) In 2020

What’s more, the power cord length is 9FT, the fan to controller cord is 15FT and it’s very versatile. As such, you can use it in almost any setting and not just at home. Furthermore, this stellar AC Infinity Duct fan can program temperature and humidity using alarms and timers; you could even adjust the fan speed if you want and it has been wired to aid hydroponic grow rooms, as well as act as AV closet coolers, and generally support the circulation of fresh air.

Even more, it uses a stator blade that gives a high-pressure rating that allows it to emanate airflow even in areas with restricted air movement. Surprisingly, with all of this, the AC infinity duct fan only weighs 71 pounds, which is just about the right weight. And as most speed controllers are known to waste power in the form of heat, this model doesn’t do that.

It’s also worth mentioning that although smart control could have been a bit more intelligent, in addition to the fact that it can’t function as well as it should even when on a low setting, nevertheless, it’s best at maximum or even minimum, and you best believe that this is as good as it gets. You may also like some of the best ceiling fans from our list, so check them out.

Flow deflector is the dominant feature of this cooling fan, and part of the reason it ranks second best, it’s basically what attracts buyers. What’s more, other people go for this duct booster fan because of its versatile nature and can be used virtually anywhere that needs airflow to reduce humidity. The VIVOSUN 4 Inch 195 CFM Inline Duct Fan is also very easy to set up, especially if you got through the complete manual guide. Furthermore, its motors have permanent lubrication which ensures quiet performance and requires no maintenance at all and the blades, although fast, aren’t as strong as the first inline fan we discussed; the price of this, however, is lower.

However, its delivery quality leaves it at a superb second place amongst any other duct fans available. And if you don’t have enough money to get a duct fan with artificial intelligence or you want something small, versatile with powerful airflow, this bad boy is the one for you.

That said; the VIVOSUN 6 Inch 390 CFM Inline Duct Fan works excellent on a small scale, so, if your greenhouse is big or you have a large area you need to be cooled, it might not be so useful. The price, however, is very low and while most people hop on the low price without even considering whether it’s suited to their needs, this could land you with a great product that doesn’t just do it for you. But that’s not the case with this product.

Also, one of the more desirable qualities of this duct fan is its noise-canceling capacity. For optimum performance on this front, simply lower the speed. It’s also an added plus that this also extends the life span of the filter and fan. Even more, this duct fan can be used just about anywhere ranging from a heated space to crawl space and could vent your stovetop. It goes a long way to push fumes away depending on your installation. Just like the other model, it’s easy to install, has low suction power, but does a great job altogether. For more quality fans like this, check out our guide to the best oscillating fans and pick your favorite.

Altogether, this device extracts odors from grow tents by pulling air through its carbon filters. So, ensure that the filter is as firmly attached to the fan as possible when using the unit with the screen. Further, this duct fan is compact and portable in its design for ease. It’s even got four different methods of installation you can pick from.

What’s more, there’s no need to worry about the exposure of its metal parts to humidity because they’re completely sealed off for protection. Furthermore, the most robust feature of this air duct booster is its ability to work with a carbon filter, you see, not all duct fans can. And although some can argue that it’s a little noisier than the previous fans, the good news is that the motor is durable and that counts for something. Our advice? Opt for the longevity of its motors and the plus of a carbon filter as well as its energy-saving ability because with all this on board, it gets the job done. For more cooling options for your home, check out our selection of the best wall mounted fans.

And although the TerrBloom duct fan is a bit more expensive than the AC infinitive product, it is packed with features that justify this. For instance, it comes with dual jet type propellers that push air and resist static pressure which adds points in terms of durability and functionality. Talk about killing two birds with one stone.

You’ll also like that the fan is already wired with a 6ft long cable and then grounded by a three-prong plug. So, you don’t have to do too much once you buy and set it up. Some people may see the fact that the TerraBloom duct fan is not wireless as a minor discomfort, but once you consider the length of the cable, all is right in the universe. Lastly, it equally comes with a variable speed controller that has a 16ft long cable which covers a lot of distance.  And although a bit expensive, this duct booster fan is an excellent value for money spent, it works effectively if you follow the directions. Be sure to also check out our guide to the best pedestal fans for more cool options like this.

Then there’s the speed controller which is fitted with a maximum button for High airflow, a minimum speed button used for most applications and a low-speed button for minimal noise. Of course, there’s also the addition of a simple off switch. And by now, it should be quite evident that the AC Infinity RAXIAL S8 is one of the best duct fans available and has been equally designed to include small details that other manufacturers often leave out.

One of such is power cords with pure aviation ports that have a retainer to tighten the connection between fan booster and the controller while blocking moisture, debris, and humidity. Furthermore, the AC Infinity RAXIAL S8 is a lot cheaper compared to the AC Infinity Cloudline T6 duct fan. So, you get plenty of benefits without having to break the bank at all.

On a side note, it’s not advisable to use this booster fan as a standalone for room ventilation, as it’s categorized as one with high static pressure, and as such, that won’t work. It’s not also the best choice for restricted airflow systems that use a carbon filter. Nevertheless, do not be deterred, AC Infinity RAXIAL S8 is the best quality duct fan within its price range. Altogether, it works well, quiet and is super-efficient. Don’t forget to also check out our guide to the best bladeless fans for our top picks.

Apart from the accompanying wireless remote, each fan also comes with mounting hardware and an AC power cord and can equally store and resume speed selection after power shuts off. More on the wireless remote, it is made of fiberglass and takes a mere four seconds to pair once you press and hold the “+” or “-“. However, note that other speed controllers will most likely not work with it, so if you lose it, you have to contact TerraBloom for replacement. Even more, this vent booster fan was manufactured with grow tents in mind and as such, allows for carbon filter applications. It basically falls in the same price range as the AC Infinity RAXIAL S8.

In conclusion, this is unquestionably one of the best duct fans on the market. It’s teeming with efficiency although it’s meant for small scale applications. When used in the right setting, you can be sure it will do a great job. For more portable options, check out our guide to the best cordless fans.

There’s also a range of UL recognized components thrown in the mix here. Some of them are, a low noise output, a molded impeller of high quality, as well as a 120v, prewired 8ft cord and installation brackets. And making it an even better duct fan is the addition of a fan speed adjuster made specifically for centrifugal fans. Thanks to this addition, it can easily switch between different levels of fan speed without affecting the motor.

In extension, the life span of the fan motor is extended by eons and although this air duct fan is a bit louder than others, it’s a good match if you pair it with a ventech controller. This is all thanks to the fact that it’s got heavy wiring and really long cords. Additionally, one major perk you’ll enjoy is the fact that it doesn’t require lubrication just like the previous duct fans. This makes it a great pairing for grow tents, greenhouses, basements, and other indoor applications. Furthermore, it can equally be used with a carbon filter but doesn’t easily function as a heat booster.  Nevertheless, it is certainly the cheapest duct booster fan on the market that will still do the job. If you are looking for the right option for your office, be sure to check out our selection of the best desk fans.