How do you make the measurements?
It is very easy. Along with the box you receive a description of how to place the box in your home. When the measurement is done, the prepaid return envelope is mailed to the laboratory, and you will then receive the result per email from the laboratory.
How much should the measurement be?
According to Public Health of UK, the yearly average for a house should be below 200 Bq/m3. They recommend that you perform at least two measurements in living rooms. It is important to calculate a yearly average.
The National Board of Health estimates that around 65,000 single-family households have a radon level above 200 Bq/m3. In these cases, the recommendation from the construction authorities is to take action towards lowering the high radon levels.
How many radon meter should you order?
As a rule of thumb, you should always order at least 2 meters to be able to measure the average yearly value in your household. Also, it is important to take the measurements in the room where you spend most time – typically your living rooms, bedrooms and perhaps your office. If you have a basement, you should also take a measurement here.
The measurements should be made during the heating season, where the differences in temperature are biggest between outdoors and indoors, and to obtain the best results, the measurements should be taken over a period of 2 – 3 months.
60 days of measurement
All radon experts recommend at least 60 days of measurements and at least two radon meters in the heating season. This is to achieve the most precise depiction of whether radon can be found in the house.