Indoor air quality testing measures the pollutants circulating inside your home, including dust and particulate matter, chemical vapors (VOCs), carbon dioxide, carbon monoxide, humidity, and allergens like mold spores, pet dander, and dust mites. Air Sense Environmental provides professional indoor air quality testing across St. Louis, MO, St. Louis County, St. Charles County, and the Illinois Metro East from our Edwardsville headquarters.
The EPA reports that indoor air is often two to five times more polluted than outdoor air, and most of what affects it cannot be seen or smelled. A 48-hour professional test replaces guesswork with data, so you know exactly what is in your air and what to do about it.
We are the same IEMA-licensed team (#RNM20232346) St. Louis homeowners trust for radon testing and mitigation, backed by a BBB A rating and 132+ five-star reviews.
Every test tracks the pollutants that matter most in St. Louis-area homes:
Dust and particulate matter (PM2.5 / PM10). Fine particles from cooking, candles, wildfire smoke, and HVAC systems that penetrate deep into the lungs.
Chemical pollutants (VOCs). Vapors released by paints, cleaners, new flooring, and furniture.
Carbon dioxide and carbon monoxide. CO2 buildup signals poor ventilation. CO is a safety concern from furnaces, water heaters, and attached garages.
Temperature and relative humidity. St. Louis summers push indoor humidity into the range where mold and dust mites thrive. Sustained readings above 60 percent are a warning sign, especially when crawl space humidity is feeding the problem from below.
Radon (optional add-on). As licensed radon professionals, we can run a continuous radon monitor alongside your air quality test. The EPA action level for radon is 4.0 pCi/L; if your reading comes back at or above it, we handle mitigation too.
Indoor air quality testing helps identify harmful pollutants such as mold spores, allergens, bacteria, and viruses that can cause or exacerbate respiratory issues, allergies, and other health problems.
Testing can uncover the presence of common allergens like pet dander and dust mites, allowing you to take steps to reduce their levels and create a more comfortable living environment.
Mold can grow undetected in hidden areas, leading to health issues and structural damage. Testing identifies mold presence early, enabling timely remediation.
Knowing the quality of the air in your home provides peace of mind, especially if you have young children, elderly family members, or individuals with compromised immune systems.
Testing can reveal issues with your HVAC system, helping you improve ventilation and airflow, which is crucial for maintaining good air quality.
Radon is a colorless, odorless radioactive gas and the second leading cause of lung cancer in the United States per the EPA. Testing detects your level; the EPA recommends action at 4.0 pCi/L or higher. We test and mitigate radon in-house.
By identifying and addressing air quality issues, you can enhance overall comfort in your home, reducing symptoms like headaches, fatigue, and irritation of the eyes, nose, and throat.
A home with verified good indoor air quality can be more attractive to potential buyers, increasing its market value and ensuring a healthier environment for future occupants.
To get a true understanding of your home’s air quality, a simple spot check isn’t enough. At Air Sense Environmental, we use a scientific, data-driven approach to provide a complete picture of your indoor environment. Our process is designed to be thorough, non-invasive, and to deliver clear, actionable insights.
Step 1: Strategic Monitor Placement Our process begins by placing one or more advanced Model 5200 IAQ Monitors in key areas of your home. These state-of-the-art devices are quiet, unobtrusive, and immediately begin collecting data.
Step 2: Continuous Data Collection For a period of at least 48 hours, the monitor continuously measures and records key air quality parameters at one-minute intervals. This provides a dynamic view of your home’s air throughout the day and night. The monitor tracks a wide range of pollutants, including:
Dust and Particulate Matter (PM2.5/PM10)
Chemical Pollutants (VOCs)
Carbon Dioxide (CO₂) and Carbon Monoxide (CO)
Temperature and Relative Humidity
Step 3: Comprehensive Analysis and Reporting Once the testing period is complete, the data is transmitted to our servers for analysis. We then compile the findings into a detailed, easy-to-understand report that clearly illustrates your home’s air quality levels, identifies potential issues, and provides you with the insights needed to create a healthier living environment. You get a written report you can act on, not a wall of numbers. We walk you through every finding and what it means for your home.
Testing tells you what is wrong. We also fix it. Air Sense Environmental installs and maintains AprilAire indoor air quality equipment, including the E100 whole-home dehumidifier and the Model V22BEC energy recovery ventilator, matched to what your report actually shows. No generic upsells, just the fix your data calls for.
We proudly install and trust only AprilAire products. As a leader in indoor air quality since 1938, AprilAire’s innovative and reliable products ensure the highest standards of air purification and climate control. Our expert team handles every aspect of the process, from the initial consultation and installation to ongoing monitoring and maintenance, ensuring your home remains a sanctuary of clean air.
When you choose Air Sense Environmental, you gain a partner dedicated to keeping the air in your home healthy year-round. Experience peace of mind with our comprehensive approach and the proven performance of AprilAire products. Together, we can create a healthier living space for you and your family.
At Air Sense Environmental, our commitment goes beyond merely testing your indoor air quality; we are dedicated partners in your journey to a healthier, safer home. By offering turnkey solutions, including installation and long-term monitoring of top-tier products like the Aprilaire E100 Dehumidifier and the Model V22BEC Energy Recovery Ventilator, we ensure you benefit from improved air quality, enhanced comfort, and significant energy savings. Trust in our expertise and the proven performance of AprilAire, a leader in indoor air quality since 1938. Together, we can create a sanctuary of clean, fresh air, protecting your family and your home for years to come. Breathe easy with Air Sense Environmental, your partner in optimal indoor air quality. Book your free in-home consultation today and take the first step towards a healthier living environment.
Pricing depends on home size and how many monitoring locations you need. Most single-family homes need one to two monitors. Call 314-664-9807 for a free consultation and exact quote. There is no charge to talk through whether testing makes sense for your situation.
The monitor collects data for at least 48 hours, recording at one-minute intervals. You receive your report shortly after the monitoring period ends.
Your report identifies the specific problem: humidity, particulates, VOCs, ventilation, or radon. We recommend the targeted fix, whether that is a dehumidifier, ventilation upgrade, or a radon mitigation system, and we install and verify it ourselves.
Filters catch some particulates but do nothing for VOCs, CO2, humidity, or radon. Testing shows whether your current setup is actually working.
Ready to know what you are breathing? Book your free in-home consultation today. Call 314-664-9807.
