Unproven and potentially harmful H2O2 purification system being used at low-income schools while high-income schools receive safe #HEPA. #filtration coloradosun.com/2021/02/02/col…
“The Adams 14 district, a smaller district serving students from more low-income families, has spent $1.1 million on new devices...””The device pulls oxygen and moisture out of the air and pushes out dry hydrogen peroxide that can kill viruses in the air.”
“Experts say that the technology doesn’t have a long track record, despite the research that the company touts, and some experts worry that doing chemistry in the air could result in unintended consequences. Several researchers do not think it’s a good idea.”
“I do not recommend hydrogen peroxide, spraying any cleaning chemicals into your air or any incense, all of this stuff, especially when the space is occupied,” Miller said. “I know some schools are doing it, but indoor air quality scientists do not recommend it.” @ShellyMBoulder
Delphine Farmer, an associate professor of chemistry at Colorado State University, said schools should be cautious about any technology that purports to use a chemical reaction to kill the virus in the air, since any chemical reaction will produce byproducts.
“I would be concerned and I would want to know: If you are using enough hydrogen peroxide to kill viruses, would you also be using enough to change the chemistry inside the building?” she said.
“I have grave concerns that I haven’t seen any scientific literature on the efficacy or the other byproducts, which, as a chemist, would want to see studied before it was implemented.”
In particular, Farmer is concerned about the use of bleach fumigation, ion-generating systems, and ozone-generating systems. Some of these are in use in hospital settings, but she said that doesn’t make them appropriate for schools. @ChemDelphine
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