When HN users recommended it
1 HN user recommended this in 2022, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2022, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
Buy this: https://smile.amazon.com/gp/product/B003C5BZYA/
Follow the instructions to the letter (use the hole, tie a string to it and suspend the test in the middle of the room, in an area away from traffic and away from air currents).
I recommend using two, on opposite sides of the room.
Then leave it there for a year. Many places have seasonal variation in radon, so while you can do a 3 month test, I recommend a 1 year test.