Radon mitigation is crucial for maintaining safe indoor air quality by reducing gas concentrations in indoor spaces to levels deemed safe by health authorities. Radon, a naturally occurring radioactive gas, forms from the decay of uranium in soil, rock and water. It is colourless, odourless and tasteless, making it undetectable without specialised equipment.
High levels of radon exposure over time poses significant health risks, including an increased risk of lung cancer. The first step in radon mitigation is testing indoor radon levels using specialised devices. Short-term tests typically span two to seven days, while long term tests measure levels over three months or more.
Should high levels be detected, mitigation measures, such as installing a radon mitigation system, become necessary. These systems utilise various techniques and components to prevent radon from entering indoor spaces or to remove it if already present.
Central to these systems are radon mitigation fans, also known as radon exhaust fans or radon mitigation blowers. They create negative pressure beneath the building’s foundation, preventing radon gas from infiltrating indoor spaces and redirecting it outside, where it disperses safely.
These fans come in two main types – inline fans, installed within piping or ductwork and exterior-mounted fans, typically situated on the roof or an exterior wall.
Proper sizing of the fan is crucial for effective radon reduction. The size of the fan depends on factors such as the size of the building, the soil type, the foundation type and the radon levels present.

Energy efficient radon mitigation fans are designed to minimise energy consumption while maintaining effective radon reduction. Variable speed fans which adjust their speed based on demand, can help optimise energy use and reduce operating costs over time.
After installation, follow up radon testing is crucial to ensure levels have decreased to safe thresholds.
Our Expertise – Can We Help?
At Mattair, we have extensive experience in the installation, maintenance and repair of radon mitigation systems.
Proper installation and regular maintenance are pivotal for ensuring the system operates effectively. Our team of professionals ensure installations comply with regulations and manufacturer guidelines, while routine maintenance, including fan cleaning and inspection, guarantees optimal performance and longevity.
Radon mitigation is paramount for safeguarding indoor air quality and mitigating the risk of radon-related health issues. By implementing appropriate mitigation measues, both owners and building managers can significantly minimise occupants exposure to radon, fostering a safer working environment.
Should you require specialised technical assistance with your radon mitigation system, do not hesitate to contact us on 01246 414922 or email [email protected]. We are committed to ensuring your indoor air quality remains safe and healthy.
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