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All windows must be kept closed. All exterior doors must be kept closed, except for normal entry and exit. Windows and doors must be kept closed for a period of 12 hours prior to the device placement date and remain closed effect until the devices are retrieved.
Whole house fans must not be operated. Window air conditioning units may only be operated in recirculation mode. Portable window fans must be removed from the window or sealed in place.
If a device is deployed at your unit or location, ceiling fans, portable air filters, portable dehumidifiers, portable humidifiers, or window air conditioning units operating in recirculation mode must not be operated within 20’ of the device.
The professional placing and retrieving the devices is required to report any failure to maintain these closed building conditions and tampering of the device. Failure to maintain these conditions could result in an invalid measurement and require the measurement to be repeated.
Your assistance in helping to ensure a valid measurement in greatly appreciated. Please contact the licensed radon professional who placed the device, your management office or RAdata at 973-927-9985 with questions or concerns.