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When it comes to protecting your home or building from environmental hazards, radon is one invisible threat you don't want to ignore. It's colorless, odorless, and tasteless—and it's the second leading cause of lung cancer in the United States, according to the EPA. But did you know that how you test for radon matters just as much as if you test?
Let's talk about why hiring a certified radon measurement professional isn't just a recommendation—it's a smart, potentially life-saving decision.
Radon measurement isn't a guessing game. Certified professionals are trained and tested on national protocols such as ANSI/AARST MAH-2023 for single-family homes and MA-MFLB-2023 for multifamily and large buildings. These standards were created by scientists and experts to ensure that radon testing is:
Certified professionals know how to select appropriate devices, where to place them, how to prevent tampering, and how to interpret the results based on the latest health and safety guidelines.
Radon levels can fluctuate hourly, daily, and seasonally. Certified testers understand the importance of:
Untrained testers—or those using uncalibrated devices from the hardware store—might provide a false sense of security (or unnecessary panic). That's not a risk worth taking.
When a certified provider tests your home, you're working with someone who:
They're not just testing—they're standing behind their results with professional liability and ethical standards.
In many jurisdictions (including Montgomery County and Rockville, MD), radon testing during real estate transactions must follow specific laws. Some require certified professionals and regular testing intervals. Improper testing could invalidate your results and lead to costly delays—or worse, liability issues down the line.
At Smart Home Radon, we're certified by the National Radon Proficiency Program (NRPP), follow ANSI/AARST protocols, and take radon seriously. We know that your health and your peace of mind depend on accurate results, honest reporting, and professional ethics.
Whether you're testing for a real estate transaction, rechecking after a mitigation system install, or just being proactive—we're here to help.
Have questions? Not sure if your property qualifies for a waiver? Ready to schedule? We make it easy:
Text: 240.855.8674
Email: daisy@smarthomeinspects.com
Phone: (301) 598-8989
Available Monday–Saturday

Daisy Rezende is a nationally certified radon measurement provider, lead paint inspector, and mold investigator. As co-owner of Smart Home Radon and Smart Home Inspects, she brings certified expertise and a passion for healthy housing to every inspection. Daisy actively contributes to national industry standards through her work with the Indoor Environments Association (IEA) and as a voting member of the Radon Mitigation Standards Consortium. Her mission: to improve air quality, educate the public, and support healthier homes across Maryland and beyond.
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