# Radon Test Result Checker | Radon Mitigation Des Moines

> Free radon result checker: compare your pCi/L to EPA 4.0 and WHO 2.7 guidance and see the reduction needed to get below 1.0 pCi/L.

URL: https://radonmitigationdesmoines.com/tools/radon-level-checker/

# Radon Test Result Checker

Enter your radon test result to see how it compares with EPA and WHO guidance and how much reduction would bring it below 1.0 pCi/L.

What Your Result Means

Fix recommended (EPA action level)

Reduction Needed to Reach Goal

83%

Compared to EPA Action Level

1.5x

Short-term tests are the standard for home sales. If your result is close to 4.0 and there is no deadline, a follow-up test can help confirm it.

Educational estimate only. One short-term test may not reflect your long-term average. Not medical advice; follow EPA guidance and confirm with a credentialed professional.

### Talk Through Your Result

A credentialed technician can explain your result and what mitigation would involve for your home, 24/7.

Rather talk now? 

Call (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

 (24/7)

## How the Result Checker Works

Compares your result to the EPA action level (4.0 pCi/L) and the WHO reference level (2.7 pCi/L), then works out the percent reduction needed to reach your goal.

The EPA recommends fixing your home if radon is 4.0 pCi/L or higher, and suggests considering a fix between 2.0 and 4.0. The World Health Organization uses a lower reference level of about 2.7 pCi/L (100 Bq/m³).

The reduction figure shows how much of your current radon would need to be removed to reach your goal. A properly designed sub-slab depressurization system can reach up to 98.9% reduction. Your post-mitigation clearance test confirms the real number.

## Related Services

-   Radon Mitigation
    
    [/ →](/)
    
-   Radon Testing & Inspections
    
    [/radon-testing/ →](/radon-testing/)
    

## Helpful Guides

-   High Radon Result? What to Do Next
    
    [/guide/high-radon-test-what-to-do/ →](/guide/high-radon-test-what-to-do/)
    
-   Why Radon Levels Run High in Iowa
    
    [/guide/why-radon-levels-high-iowa/ →](/guide/why-radon-levels-high-iowa/)
    
-   What Is Radon Mitigation?
    
    [/guide/what-is-radon-mitigation/ →](/guide/what-is-radon-mitigation/)
    

## More Free Tools

-   Radon Unit Converter (pCi/L ↔ Bq/m³)
    
    [/tools/radon-unit-converter/ →](/tools/radon-unit-converter/)
    
-   All radon tools
    
    [/tools/ →](/tools/)
    

![](/images/hero/central-iowa-two-story-home-with-white-radon-vent-.webp)

Support available 24/7

## Got a High Radon Result?

Iowa-credentialed technicians, a 5-year warranty on every system, and real people answering 24/7.

Get a Radon Quote

[/contact/ →](/contact/)

 

Call (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

-   5-year warranty
-   Iowa HHS credentialed
-   Clearance test on every install