You already know how we feel about air exchangers. The surprisingly simple, easy-to-use device is one of the best ways to keep your home’s air fresh and clean. But once you have an air exchanger, how do you use it? Should you really just turn it on and forget about it? Is there anything you can do to make it more effective?

We want you to get the most out of your air exchanger. That’s why we’ve put our heads to together to come up with this list of air exchanger best practices. Follow these simple tips, and you could see a huge air quality improvement in your home right away.



Your air exchanger manual probably suggested a setting to keep your unit turned to for maximum effectiveness. There’s a reason the manufacturers included that recommendation, but remember: they didn’t know your home. If your home’s air feels clogged with allergens or dirty, don’t be afraid to change the exchanger’s settings.

If you turn up your air exchanger constantly and it doesn’t help, chances are you have a more serious problem to contend with. Remember, however: air quality fluctuates. It’s natural to need to change your air exchanger settings to keep up every now and then. Just because you have to turn it up now doesn’t mean there’s anything wrong. Go ahead and crank that dial when you need to. Remember, you bought your air exchanger so you’d feel comfortable. Use it!


No matter where they’re installed, air filters basically do the same thing. When dirty air passes through the filter, pollutants get stuck inside… while the air keeps going. The air that comes out the other end is pollutant-free and safe to inhale.

So where do the pollutants end up? They stay trapped inside the filter! Over time, filters fill up with the dirty pollutants they intercept from the air. As they fill up, filters become less effective. Eventually, they could even make the air dirtier instead of cleaner. Replace the air filter in your exchanger around once every three months to keep your exchanger as effective as possible.


This one seems obvious, but you have to use your air exchanger to get anything out of it! Your air exchanger is most effective when run continuously. As long as it’s on, your exchanger continuously filters out polluted air and brings in the clean stuff.

If you turn your exchanger off, pollutants can build up in your indoor air. It’ll take time for your exchanger to throw this polluted air out, even after you turn it back on. Keep your exchanger operating at low settings constantly, and you won’t have to worry about stale air buildup.


Air conditioning your home in summer accomplishes two things. First, it keeps the air in your home cool (obviously). Second, it helps control your air’s humidity. During summer, the air outside naturally becomes more humid, because hot air energizes water molecules and keeps them from condensing.

Pulling humid summer air into your home forces your air conditioner to work harder to compensate for it. As a result, your air conditioner will run longer and drive up your bills. As long as you’re using your air conditioner, consider switching off your air exchanger. To keep your home’s air fresh, turn off the air conditioning periodically and open up the windows instead.


The final, best advice we have for using an air exchanger? Ask questions about anything you don’t know. If you need help with any air exchanger or general HVAC concerns, you can always call Blue Ox Heating & Air.

Our experts have plenty of experience installing and fixing air exchangers of every variety, and we can help you figure out yours. Enjoy your fresh air!

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Blue Ox Heating & Air

5720 International Parkway
New Hope, MN 55428