Indoor Air Quality Testing & Monitoring in Chicago
The air inside your home can be far more polluted than the air outside. We test for the pollutants that matter — particulates, VOCs, CO2, humidity and more — explain your results in plain English, and give you a clear plan to breathe easier. Optional ongoing monitoring keeps you informed year-round.
Know exactly what you're breathing at home
Modern Chicago homes are built tight to save energy, which also traps dust, pet dander, cooking fumes, and chemicals from everyday products indoors. Cold winters and closed windows only make it worse — so the air you breathe most is the air inside.
AirFresh Inc. is a locally owned company in nearby Northbrook, serving homeowners across Chicago and Chicagoland. We measure the pollutants that matter most, explain what each reading means, and give you a practical plan — which may include air duct cleaning to remove built-up dust and debris. Prefer continuous data? We can place monitors to track your air over time.
Why test your indoor air
Clear answers about the air your family breathes every day.
Signs you should test your air
The EPA links many common home issues to indoor air quality. Consider testing if:
Not sure where to start? Request a free quote and we'll help you plan an assessment.
How our air quality assessment works
A simple, methodical process with clear results and a plan at the end.
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Schedule your assessment
Tell us your concerns and timeline, and we'll book a visit that fits your schedule.
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Walk through your home
We talk through symptoms, odors, and problem areas so we test the spaces that matter most.
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Test key pollutants on-site
Using quality instruments, we measure particulates, VOCs, CO2, humidity, and more in your key living areas.
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Optionally place monitors
Want ongoing data? We can set up continuous monitors to track your air over days or weeks.
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Analyze & interpret
We review your readings and compare them against healthy indoor guidelines to see where your home stands.
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Clear report & improvement plan
You get your numbers explained in plain English, plus a prioritized, honest plan for cleaner air.
What we test for
The pollutants and conditions that most affect comfort and health at home.
Testing vs. ongoing monitoring
A snapshot today, or a full picture over time — whichever fits your needs.
One-time testing
A professional snapshot of your air quality during the visit. Ideal when you want quick answers about a specific concern, a recent renovation, or a home you just bought — with a clear report and plan.
Best for: fast answers & a baseline
Ongoing monitoring
Continuous monitors track pollutants like PM2.5, CO2, and humidity over days and weeks, revealing daily patterns and spikes. It's the best way to confirm that improvements — like air duct cleaning — are actually working.
Best for: trends & verifying fixes
Simple, upfront air quality pricing
Start with an assessment so you get real data and a firm plan — no guesswork, no hidden fees.
Start with a $175 air quality assessment
The $175 covers on-site testing of your key pollutants plus a written report and a practical improvement plan. If your results call for a service we offer — like air duct cleaning — the $175 is credited toward that work when you move forward.
Air quality testing across Chicago & Chicagoland
Based in Northbrook, we test homes throughout Chicago and the surrounding suburbs — including Evanston, Oak Park, Skokie, Cicero, Park Ridge, Niles, Lincolnwood, and Wilmette.
Not sure you're in range? We often serve nearby towns too — just ask. See Chicago, IL service details or browse all service areas.
Dusty air? We can help
If testing shows elevated dust and particulates, air duct cleaning removes built-up debris from your system — and your $175 assessment is credited toward the work.
Learn about air duct cleaning →What Chicago homeowners say
"My son's allergies were awful indoors, so we had AirFresh test our air. They found high dust and humidity, walked us through the numbers, and recommended a plan. After duct cleaning the difference is night and day."
— Melissa Grant
★★★★★
"After renovating our condo the air felt stuffy and smelled like fresh paint for weeks. The technician tested for VOCs and CO2, explained what was elevated, and gave clear ventilation advice. Genuinely helpful and no pressure."
— Daniel Fuentes
★★★★★
"We wanted ongoing peace of mind, so they set up monitors after testing. Being able to see our PM2.5 and humidity trends over time is fantastic, and it confirmed the improvements were working. Professional from start to finish."
— Angela Whitmore
★★★★★
Indoor air quality FAQs
What does an indoor air quality test check for?
We measure the pollutants that matter most in a home: fine particulates (PM2.5) like dust and dander, volatile organic compounds (VOCs) that off-gas from paints and furniture, carbon dioxide (CO2) as a sign of poor ventilation, carbon monoxide (CO), and humidity levels that drive mold growth. We can also help you arrange radon testing. After testing we explain what each reading means for your home.
How long does an assessment take?
An on-site assessment usually takes about an hour, depending on the size of your home and how many areas you want checked. We walk through your concerns, take readings in the key living spaces, and explain what we find. If you opt for ongoing monitoring, we place monitors that collect data over days or weeks for a fuller picture.
How much does indoor air quality testing cost?
We start with a $175 air quality assessment that includes on-site testing plus a written report and a practical improvement plan. If your results call for a service we offer, such as air duct cleaning, the $175 is credited toward that work. We always confirm everything with you before beginning.
Do I need to leave my home during testing?
No. You can stay home during the assessment, and it helps for you to be there so we can ask about symptoms, odors, and problem areas. For ongoing monitoring you simply live normally while the monitors quietly collect data.
What's the difference between testing and monitoring?
Testing is a one-time snapshot of your air quality at the time of the visit. Monitoring uses continuous air quality monitors placed in your home to track pollutants like particulates, CO2, and humidity over time, so you can see daily patterns, spot problems, and confirm that any improvements are working.
Will testing help with my allergies or asthma?
It can help you find the cause. When symptoms flare indoors, testing shows whether particulates, humidity and mold risk, or VOCs are elevated, so you can target the real problem instead of guessing. Testing is not a medical diagnosis, but it gives you and your doctor useful information about your home environment.
What happens if you find a problem?
You get a clear report and a practical, prioritized improvement plan. Depending on what we find, that might include air duct cleaning to remove dust and debris, humidity and ventilation changes, source removal, or radon testing and mitigation. We only recommend what your results actually support.
Why hire a pro instead of a cheap monitor?
Inexpensive consumer gadgets can be a helpful starting point, but they vary in accuracy and rarely tell you what to do about a reading. A professional assessment uses quality instruments, correct placement, and an expert who interprets the numbers and gives you a clear action plan. The EPA has more on why indoor air quality matters. We can also set up reliable ongoing monitoring if you want continuous data.
Breathe easier — know what's in your air
Start with a $175 air quality assessment in Chicago & Chicagoland — on-site testing, a clear report, and an honest plan, credited toward a recommended service if you move forward. Licensed, insured, and backed by our 100% satisfaction guarantee.