If someone has test results showing their air cleaners work as claimed, they should publish them. Peer review is key to validation. In general, adding ions, plasmas, & oxidants to indoor air creates health concerns. See this recent review and refs:
These companies are coming out of the woodwork selling super expensive devices to schools and businesses. Their technology has not been validated in any acceptable way. They claim they have proven it works on web sites where anyone can say anything they want. This is not OK.(2/)
They are taking advantage of schools desperately trying to protect kids during a pandemic, thinking if they spend 10 times more, they will be protecting them even more. Not the case. Simple HEPA filtration and ventilation are all one needs to clean indoor air.
Just spoke with someone who has been totally conned by these people. They have limited resources, are desperate to protect themselves, and their family and friends…they have no idea how the science works and have blindly trusted these companies. Sickening.
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Is "negativity" people begging her to address why she refuses to acknowledge the importance of airborne transmission and implement the precautionary principle (a major lesson from SARS1 in Canada)? People are getting infected unnecessarily. (1/)
As Chair, it is her job to examine the latest evidence. Misinformation? She is stating there is controversy--not true. All evidence to date points at airborne transmission. There is zero controversy by the experts who study transmission pathways and many MDs. (2/)
In terms of "negativity". I have been professional. She on the other hand has called many of us names including conspiracy theorists and accused of being in silos, etc. She is ignoring MANY pubs now showing the virus can be sampled from the air and it is indeed infectious.(3/)
Some days it is so hard to believe that rather than protect against airborne transmission of SARS-CoV-2, healthcare and public health officials continue to treat is as droplet spread. All of the evidence we have on SARS-CoV-2 points to aerosol transmission-none to droplet. (1/4)
Healthcare workers are dying because of this failure to recognize the importance of aerosol transmission as described in Canada. It is happening worldwide. (2/4)
Canada dealt with original SARS-1. It hit two cities at the same time-Vancouver and Ontario. One wise doctor (@drfiliatrault) in Vancouver chose to treat it as airborne--and guess what, her hospital stopped it in its tracks. See story. (3/4)
The amount of resistance to accepting SARS-CoV-2 is airborne is especially surprising given it was well accepted that SARS-1 was airborne. They believed in the precautionary principle back then--so they stomped it out.
Actually, looks like Canada didn't invoke the precautionary principle for SARS-1 (a report later made the point)...HT @Don_Milton Turns out that Hong Kong and other Asian places acted more quickly.
And then there is the SARS-1 commission report...big lesson? Pay attention to the precautionary principle and employers should listen to their frontline workers.
Someone is posting as me using my picture and my handle with a @kprather88_. They added underscore at the end of the handle. Please report their account. @TwitterSafety
This is the person the handle @kprather88_ now goes to…she has me blocked. Please report this account.
Twitter fixed the one they were using on me--but poor @AlyseKilleen still have multiple accounts impersonating her...they use upper case "i's" in place of the lower case "L's" in various places. @aiysekilleen and @alysekiiieen are two fake ones that still exist. @TwitterSupport
Wow putting this collage together made me happy. This is what happens when people put their minds into helping protect kids in schools. Yes, anyone can build a Corsi-Rosenthal box -- as @JimRosenthal4 says--if you can tape a package to mail, you can build one of these. (1/7)
I truly believe that adding these filters to classrooms along with mandating indoor masks and increasing ventilation is an absolutely key safety layer to protect kids and teachers against Delta as they return to school. (2/7)
@marwa_zaatari has shown that these inexpensive boxes actually compete with more expensive HEPA filters. (3/7)