The long term radon gas testing kit is designed for a minimum exposure time of 90 days and a maximum of twelve months. This is a single device that once removed from its packaging (sealed plastic bag) becomes active. There are no caps or parts to remove. Please do not remove the void sticker or attempt to open the device. Doing so will result in your sample becoming invalid.
The short term radon gas testing kit is designed for an exposure time of 48 to 96 hours. This can be a single or double canister testing kit. To initiate the testing, the caps will need to be removed when placing the canisters in the testing area. Once the exposure time is completed, the caps are replaced and the canisters returned for analysis. Please do not remove the contents of the canister. Doing so may result in your sample becoming invalid.