Review on Portable Airthings Corentium Home Radon Detector 223: Lightweight, Easy-to-Use, USA Version, pCi/L by Tay Tran

When I was about to buy a house, I usually avoided houses with radon protection already installed. I was not literate, informed, or concerned about radon. I figured a house with a radon problem would somehow go down in value. I bought my house in 2012. A home inspector placed a charcoal radon test kit in the basement. The results were 3.8 pCi/L, exactly in line with the EPA recommendation of 4.0 pCi/L. I thought great! No repairs are required according to final ownership records. Fast forward a few years: I did a small basement cleanup to remove the wood insulation between the outside edge joists and install homemade spray foam caulking, and replaced the window vents with double vinyl inlays. Now that I've "sealed" the basement from drafts, I'm starting to be more concerned about radon. I did some more research and found that charcoal sets are statistically very inaccurate. I bought the Corentium device based on the great reviews and ease of continuous monitoring. The Corentium installation reported long-term exposure levels of 8.3 pCi/L. I was surprised that Corentium was reporting high levels even on the top floors of my house. That's all the information I needed to contact a radon abatement specialist to install a pressure relief fan under the furnace to vent the radon. The protection system cost me $1,300. The long-term values fell significantly below 0.7 pCi/L. Corentium calibrates itself. Just read the instructions, install it and check back as often as you like. Corentium is a small investment to buy a piece of your soul. I highly recommend it. I have loaned the device to friends, family and neighbors to help them make informed decisions.