Industry regulations prohibits manufacturers such as Airthings from performing required proficiency testing and may only be offered at secondary chambers.
NRPP users:
Kansas State University, a licensed secondary chamber is available for this service and may be contacted at 785-532-6026 or by email radonchamber@ksu.edu.
To learn more about their service, please visit their website.
NRSB users:
To schedule a proficiency test, refer to the document listed here for instructions to arrange testing with Bowser-Morner. You can also schedule the test by visiting their website.
For further questions, reach out to them them via email at radon@bowser-morner.com.
NOTE: Please add your Corentium Pro to your dashboard in the monitor management section before sending it for proficiency testing.