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  2. Radon mitigation - Wikipedia

    en.wikipedia.org/wiki/Radon_mitigation

    A typical radon test kit Fluctuation of ambient air radon concentration over one week, measured in a laboratory. The first step in mitigation is testing. No level of radiation is considered completely safe, but as it cannot be eliminated, governments around the world have set various action levels to provide guidance on when radon concentrations should be reduced.

  3. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    Indoor air quality (IAQ) is the air quality within buildings and structures. ... There are simple do-it-yourself kits for radon gas testing, but a licensed ...

  4. Blower door - Wikipedia

    en.wikipedia.org/wiki/Blower_door

    NFPA Clean Agent Retention testing (this type of testing is usually described as a door fan test rather than a blower door test) Duct leakage testing of forced air heating/cooling systems - both supply (vents) ducts and return ducts can be tested to determine if and how much they leak air. A duct test can be combined with a blower door test to ...

  5. The best FDA-approved at-home COVID tests - AOL

    www.aol.com/lifestyle/at-home-covid-tests...

    The On/Go test kit includes one test per box, but you can also purchase the tests in bulk for $80 for 12 test kits. In addition to our top pick, the Flowflex COVID-19 Antigen Home Test, ...

  6. Fulton surface-to-air recovery system - Wikipedia

    en.wikipedia.org/wiki/Fulton_surface-to-air...

    The Fulton system in use The Fulton system in use from below. The Fulton surface-to-air recovery system (STARS), also known as Skyhook, is a system used by the Central Intelligence Agency (CIA), United States Air Force, and United States Navy for retrieving individuals on the ground using aircraft such as the MC-130E Combat Talon I and B-17 Flying Fortress.

  7. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    Hydrostatic testing is the most common method employed for testing pipes and pressure vessels. Using this test helps maintain safety standards and durability of a vessel over time. Newly manufactured pieces are initially qualified using the hydrostatic test. They are then revalidated at regular intervals according to the relevant standard.