I must say I'm quite pleased with it too. The previous time I tried it was in 2005 and it was just ok.
I also recently found out about the Owl add-on. Really makes it a good alternative
The radon could also go up to the first floor of your house, especially with closed windows.
We had a finished basement, and bought a radon detector (radoneye), we found out we had over 1800 Becquerel/m3 downstairs and about 1500 upstairs.
It quickly goes away when we opened the windows but also comes back completely within days.
It's a huge amount so we got the fan installed and we are now at 15 and 0. It costs us about $1500 to install.
For those who get the system installed, please keep in mind that depending on how your house is built, you may need to extract the gas from the two halves of the basement if you have a slab right in the middle used as some sort of foot. You'd have to check the blueprint to know. The installer might have an idea too depending on the construction year of the house.
That reminds me of when I tried to get a vasectomy, my family doctor refused to refer me to the surgery saying I was too young and could change my mind.
10 years later, well I still didn't change my mind.
I guess it becomes a problem when they over tight It and also leave the person in it for a long time. Apparently they left him in there for multiple hours. He must have had massive muscle cramps
So 7 500 000 000 000 tonnes of melted ice not returning.
To put this in different perspective, one of the heaviest human made thing would be the Great Wall of China which is about 53 million tonnes.
That means the equivalent of 142 thousand Great Wall of China melted since 1997.
Surely the execs won't get any bonus this year either... Right??