Date:   11/11/2020 4:43:31 AM ( 28 months ago ago)
Hits:   683
URL:   https://www.curezone.com/forums/fm.asp?i=2435941

https://www.epa.gov/lead/lead-test-kits#:~:text=%20EPA-Recognized%20Lead%20Test%20Kits%20%201%203M%E2%84%A2,by%20trained%20professionals%2C%20the%20Commonwealth%20of...%20More%20

Could be other contaminants or perhaps some microbes in the HVAC system. You might want to check the safety for running ozone through the HVAC system.
 

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