Indoor Air Quality FAQs

Homeowners learn which indoor air quality system will benefit them the most.

Our Experts Answer Your Top Indoor Air Quality FAQs

The quality of your indoor air is one of the most important factors of both your home comfort and health. To help you better understand what exactly it is, the experts at Interstate Heating are answering your top questions here in our indoor air quality FAQs. Read through our tips below and call us at 262-246-4772.

1. How Often Do I Need to Replace My Air Filter?
For standard one-inch filters, we recommend swapping it once every one to three months—or more often if you have pets, allow smoking indoors, or have bad allergies. For high-efficiency (HEPA) filters, you can change them once every six to 12 months.
2. Why Do I Need an Air Cleaner?

Indoor air is often more polluted than outdoor air, usually because contaminants are trapped inside and accumulate over time. Simple things like household cleaners, cooking, air fresheners, or scented candles all contribute to poor indoor air quality, as do fumes from paint and carpeting. Dust, pollen, and pollutants also play a big role in negative air quality.

An air cleaner helps filter all those dust particles and other contaminants from your home, helping you breathe easier.

3. How Important Is Indoor Humidity?

Bad humidity affects not only your comfort at home, but also your health. Ideally, your home humidity levels should fall between 35 and 50 percent. If your air is too dry, you could be susceptible to dry skin, sore throats, and frequent colds or flus—if it’s too humid, you could have problems with bad allergies, mold and mildew, and that uncomfortable hot and sticky feeling.

Humidifiers and dehumidifiers are perfect ways to keep your home’s moisture levels in check.

4. How Often Should I Run My Furnace or Air Conditioner Fan?
It depends on your comfort preferences. Setting it to “On” will keep the fan running continuously, making for more consistent temperatures and better air filtration. On “Auto”, the fan will run only long enough to hit your desired temperature. This will help you save more on energy costs, as the system isn’t constantly running to keep you warm or cool.
5. How Can I Fix Hot and Cold Spots in My House?
The easiest and most efficient way is to install a ductless mini-split system in the problem area. These individual units can hang in any spot to provide custom heating and cooling solutions for just that space.

Looking for more indoor air quality FAQs? Our team is ready to answer your questions. Call us at 262-246-4772 and see why more homeowners and home builders turn to us for answers.

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N53 W24950 S. Corporate Circle
Sussex, WI 53089

Phone: 262.246.4772
Fax: 262.246.0296


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