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2. Radon mitigation - Wikipedia

   en.wikipedia.org/wiki/Radon_mitigation

   Part of a radon mitigation system including the fan and vent pipe is visible near the gutter downspout. Because high levels of radon have been found in every state of the United States, [18] testing for radon and installing radon mitigation systems has become a specialized industry since the 1980s. Many states have implemented programs that ...

3. Health effects of radon - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_radon

   In many cases, mitigators can use PVC piping and specialized radon suction fans to exhaust sub-slab, or sub-membrane radon and other soil gases to the outside atmosphere. Most of these solutions for radon mitigation require maintenance, and it is important to continually replace any fans or filters as needed to continue proper functioning. [109]

4. Radon - Wikipedia

   en.wikipedia.org/wiki/Radon

   Soil suction, for example, prevents radon from entering your home by drawing the radon from below the home and venting it through a pipe, or pipes, to the air above the home where it is quickly diluted" and the "EPA does not recommend the use of sealing alone to reduce radon because, by itself, sealing has not been shown to lower radon levels ...

5. 15 Things That Will Always Fail a Home Inspection (and ... - AOL

   www.aol.com/15-things-always-fail-home-160000027...

   Finally, carbon monoxide and radon can leak into your home via broken appliances or foundation cracks; your inspector will likely use a specialty detector to look for high gas levels.

6. Radium and radon in the environment - Wikipedia

   en.wikipedia.org/wiki/Radium_and_radon_in_the...

   Radon can be found in some spring waters and hot springs. [7] The towns of Misasa, Japan, and Bad Kreuznach, Germany boast radium-rich springs which emit radon, as does Radium Springs, New Mexico. Radon exhausts naturally from the ground, particularly in certain regions, especially but not only regions with granitic soils. However, not all ...

7. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...