Ozone Does Not Kill Mold
Ozone Is Used To Cleanup COVID-19 and Remove Smoke Odors
Ozone is the product most COVID-19 cleanup contractors prefer to use. Does it do a good job? Well, no one knows for sure. Testing for surfaces is certainly available, but it only tests a limited area. Results are possible within 2 hours in San Francisco if sampling is performed in the morning. This is a LIMITED test because it’s unrealistic to test every surface and if a contagious person enters the area and coughs or sneezes then the area is no longer COVID-19 free.
We are investigating a pcr-based air sample that can find SARS-COVID-19 in building air and return results quickly. Check back soon to learn more.
One of the major manufacturers of an ozone generator supplies their franchisees their own testing kits. We prefer neutral, 3rd party EPA approved testing; not something supplied by the manufacturer. This product is used immediately after the cleaning is completed with results onsite. We have chosen to not become involved with the manufacturer supplied tests.
The main problem is swab sampling is the preferred testing method and widely used today. Getting swab samples accurately (pcr) analyzed for SARS-CoV-2 is a lengthy process; some labs take weeks, others take several days, a few take 2 hours, but your project needs to be located in San Francisco and testing needs to be completed before noon. Otherwise, lengthy delays in getting testing results back to clients pretty much eliminates contact tracing efforts and the “clearance” is suspect because the area could become reinfected.
Some labs require the swabs to be shipped with ice. Others don’t.
Some labs use the ELIZA method to test for SARS-CoV-2 in dust, others combine several surface swab samples and analyze for viruses, not specifically SARS-CoV-2.
If you are considering this COVID-19 cleanup verification testing, ask a lot of questions.
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Ozone Doesn’t Kill Mold
Over The Years We Have Performed Mold Clearance Testing On Projects Where Ozone Was Tried. Every One Of Them Failed.
The American Conference of Governmental Industrial Hygienists (ACGIH) states: “No gas- or vapor- phase biocide can effectively and safely remediate a microbially contaminated building because of problems with biocide deliver, efficacy, and toxicity.”
Concentrated ozone will kill living mold spores, but won’t fix the air quality problems, find or fix the water intrusions that caused the mold growth, or repair the water damage. Both living and dead mold spores have the ability to create an allergic response. The ozone gas and other toxic chemicals like hydrogen peroxide or bleach cause more health emergencies that the biohazard itself.
Don’t take just my word for it; here’s what the IICRC R520 2015 Reference Guide for Professional Mold Remediation.
Here’s a list of environmental contractors that we have successfully worked with and know they are licensed, trained, insured, and do a good job. Always get three quotes, if possible. And do have a written contract that includes this: “Time is of the essence.” “If this mold remediation does not successfully pass validation testing, the remediation company will pay all additional expenses including testing and all additional remedial work needed. I retain the right to choose the mold verification company.”
Please Consider That Ozone Is A Greenhouse Gas; Let’s Not Purposely Add More Burden To Our Air.
It you are using ozone to clean up a probable COVID-19 contamination, then it may make sense today. But every day a new, less toxic method comes out. We still rely on science to tell us if these is a good or bad method. Stay tuned!