When it comes to testing your home for radon, you have options. The two main approaches are short-term testing and continuous monitoring — and they serve very different purposes. Here's how to choose the right one for your situation.
Short-Term Testing
Short-term tests are designed to give you a quick snapshot of your home's radon levels over a period of 2 to 90 days.
How It Works
The most common short-term test uses a charcoal canister. You place it in the lowest livable area of your home, leave it for 2–7 days, then mail it to a laboratory for analysis. Results typically arrive within a week.
Pros
- Fast results — ideal for real estate transactions
- Inexpensive upfront cost
- Easy to use
Cons
- Only captures a single point in time
- Radon levels fluctuate with weather, seasons, and ventilation — a short-term test may not reflect your true average
- Requires lab processing and waiting time
- Cannot alert you to sudden spikes
Continuous Radon Monitoring
Continuous monitors measure radon levels around the clock, providing real-time data and long-term trend analysis.
How It Works
Electronic radon detectors like the GZAIR use advanced sensor technology to sample the air continuously. Results are displayed in real time on the device, with hourly and daily averages tracked over time.
Pros
- Real-time alerts — know immediately if radon spikes
- Long-term accuracy — averages out daily and seasonal fluctuations
- No lab fees — results are instant and ongoing
- Tracks trends — see how radon changes with seasons, renovations, or ventilation
- Ideal for ongoing home monitoring and post-mitigation verification
Cons
- Higher upfront cost than a single-use test kit
Which Should You Choose?
- Buying or selling a home quickly? A short-term test may suffice for initial screening.
- Want accurate, ongoing protection? A continuous monitor is the superior choice for long-term peace of mind.
- Just had mitigation work done? A continuous monitor lets you verify that levels stay low over time.
The Smart Choice for Long-Term Protection
The GZAIR Radon Detector provides continuous, real-time monitoring with no lab fees and no waiting. One device, ongoing protection.
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