Commercial and industrial ventilation fans are essential for ensuring high-quality indoor air for shops, warehouses, factories, gyms, greenhouses, and other commercial buildings. A wall exhaust fan depressurizes the building to push humid, stale, smelly, or smoky air outside, while a wall supply fan pressurizes the building to bring fresh air inside.

This is important not only for the health and safety of the people in the building but also for the proper functioning of equipment and the protection of supplies. Over time, excess humidity can damage equipment or make it operate less effectively and encourage the growth of mold, while lingering odors can attach themselves to the products you're intending to ship out.

By installing wall exhaust fans or wall supply fans, and using them in conjunction with air circulators, you'll create a safer, more comfortable environment in the building while cutting down on mold and mildew and maximizing the efficiency of your entire HVAC system. Though there are many types of exhaust fans, the wall-mounted ones have the advantage of sending the air directly outside, rather than having to work through additional venting.

NorthStock, Inc. offers ventilation fans from highly-respected manufacturers, browse our inventory by selecting a category below.

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Wall Exhaust & Supply Fans

Wall exhaust fans do best in colder climates, while supply fans are better in hot, humid, or mixed climates. Supply fans help minimize pollutants from outside, and they prevent the backdraft of combustion gases. The one you choose will depend on your climate, the concerns you have about the indoor air, the type of facility you're ventilating, and the volume of air you need to exchange. You'll also want to consider the amount of noise generated by the fan and how that will affect employees.

You have plenty of options among wall-mounted ventilation fans. Cabinet wall exhaust fans are enclosed with shutters, while gable fans are open. Such shuttered or guard-mounted wall exhaust fans offer an extra layer of protection against (and for) the fan blades. Fans for hazardous locations are spark-resistant and built for safety.

After you have your fans installed, you'll want to make sure you keep them clean and maintained. Not only will they last longer, but they'll also work better. A poorly functioning fan is nearly as bad as no fan at all. Fortunately, we work with manufacturers whose ventilation fans are built to last, so with proper maintenance, they'll be running for years.

Each product listing is organized the same way so you can easily see clear photos, our factory-direct pricing, availability and lead time, and all the product literature we have on each item. That may include warranties, installation guides, catalogs, and more. Required and optional accessories are also listed, so you can acknowledge you have what you need—or you can add it to your purchase.

Feel free to reach out to our experienced customer service team if you have any questions. We also check your order for inconsistencies before shipping; if we spot something that doesn't seem right, we'll contact you to confirm your order. We've found this saves a lot of time and hassle for our customers.

Fast, free shipping is available on every order, and we offer volume pricing discounts—contact us before you place a big order to learn more.

Northstock is proud to be your go-to HVAC supply company. From industrial fans to air circulators and all your other HVAC needs, we've got you covered. Contact us today!