How to Protect Your Basement from Radon and Humidity This Summer

Summer’s heat and humidity don’t just make your basement uncomfortable, they can also amplify radon gas exposure and create the perfect environment for mold growth. Pairing an Airthereal radon detector with a TURBRO dehumidifier is one of the smartest steps you can take to protect your home and your health this season.

The Summer Flood Factor: Moisture, Mold, and Radon

As we near the end of the summer in 2025, severe flooding has hit many areas of the U.S., including flash floods in Central Texas and a record-breaking storm in Milwaukee that left basements underwater. Even after the water recedes, moisture lingers, often raising basement humidity to unsafe levels.

High humidity doesn’t just encourage mold, it can also increase radon emissions because wet soil and porous foundations make it easier for the gas to seep indoors. Combine that with reduced ventilation as homeowners keep windows closed against the summer heat while the AC is running, and basements quickly become a hotspot for both radon and damp air. Although air conditioners do provide some dehumidification, it is often not enough if there has been excessive heavy rain recently. 

Why a Dehumidifier is Part of the Solution

Moisture control is critical for both mold prevention and radon reduction. Damp conditions intensify radon risk in two key ways:

  1. Wet soil and foundation materials create more pathways for radon gas to enter your home.
  2. Humid air leads to less ventilation, allowing radon to build up indoors.

That is where TURBRO dehumidifiers make a difference.

  • The Greenland 165-pint Commercial Dehumidifier removes up to 165 pints of moisture per day, covering up to 7,500 square feet. With its built-in pump and 16.4-foot drainage hose, it’s ideal for continuous operation after heavy rains or flooding.
  • The Greenland 245-pint Commercial Dehumidifier provides even more capacity for large basements or extreme conditions. It is engineered to extract moisture quickly even under high-heat, high-humidity environments, making it a strong choice for post-flood recovery.

Both models are designed with efficiency and convenience in mind, featuring energy-saving R32 refrigerants, automatic defrost, and easy portability through built-in wheels and handles.

Pairing with the Airthereal RM-65 Radon Detector

A radon detector alone tells you when levels rise, but it does not address the conditions that make radon intrusion worse. Pairing a detector with a dehumidifier gives you both awareness and control.

  • Monitor continuously: The Airthereal RM-65 Radon Detector provides real-time radon readings, so you can spot dangerous spikes early, especially after storms or flooding.
  • Dry the air: TURBRO dehumidifiers lower humidity, which reduces radon entry through cracks and porous surfaces.
  • Improve airflow: Dry air circulates more easily, helping dilute and vent radon.
  • Prevent mold and mildew: Humidity control keeps your basement healthy on multiple fronts.

Airthereal radon detector with real - time & long - term monitoring. Displays 6h reading (3.820 pCi/L) and 1d reading (4.347 pCi/L). Has audible & visual alarm.

The RM-65 acts as your early warning system, while a Greenland dehumidifier works as your response tool. Together, they create a complete defense for your basement environment.

A Post-Flood Scenario

Imagine your basement floods during a summer storm. A week later, the air feels heavy and damp, and your Airthereal RM-65 Radon Detector suddenly registers a spike. By running a TURBRO Greenland dehumidifier, humidity levels drop back to normal, the basement dries out, and radon concentrations decrease to safe levels. Instead of facing long-term damage from mold or hidden gas exposure, you can quickly restore a safe, breathable environment.

Final Thoughts

Summer is a season for relaxation, but it also brings hidden hazards like radon and high humidity. The flooding seen this year across parts of the U.S. is a reminder of how quickly water can change the health of a basement. By pairing the Airthereal RM-65 Radon Detector with a TURBRO dehumidifier, you can manage both moisture and gas levels, protect your air quality, and create a healthier space for your family.

 

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