Moved into new (to us, built in 1980) house 2 years ago. Installed an Airthings radon meter a year ago. Levels get up to 400 Bq/m3 when all the windows are closed. Finally had a radon mitigation system installed. Will hopefully get to much safer level below 100 Bq/m3.

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[–] 11 points 3 weeks ago (2 children)

New construction last year - tested shortly after moving in at ~2500 Bq/m³ ಠ_ಠ
Wired in the fan and now it's typically reading between 4 and 20 Bq/m³ ( ͡° ͜ʖ ͡° )

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