In a first-of-its-kind series of tests, leading aerospace company Boeing and the University of Arizona determined airlines’ current cleaning solutions that "effectively destroy" the virus that causes Covid-19.
Boeing “completed the testing” as part of its Confident Travel Initiative (CTI) to support customers and enhance the safety and well-being of passengers and crews during the Covid-19 pandemic.
Testing was conducted on an unoccupied Boeing airplane against a live virus called MS2 over the summer. The University Of Arizona Department Of Environmental Sciences correlated those results to SARS-CoV-2, the virus that causes Covid-19, in a protected laboratory environment.
“While these cleaning solutions had been tested in other environments, an airplane behaves differently. It was critical for us to evaluate and confirm the chemicals and techniques we recommend for our customers’ use are effective and battle-tested,” said Mike Delaney, who leads Boeing's CTI efforts.
“By working with the University of Arizona, we were able to employ their world-renowned expertise in virology to do exactly that.”
The bacteriophage virus MS2 is safe and harmless to humans and more difficult to kill than SARS-CoV-2. Scientific and industry studies have used the MS2 virus for many years, but never before in an airplane cabin. The University of Arizona provided the MS2 virus and analysed test results.
“This study allowed us to test and validate, for the first time, that disinfecting solutions kill SARS-CoV-2 on an airplane,” said University of Arizona microbiologist Dr Charles Gerba. “It’s important to recognise we’re not only talking about SARS-CoV-2, but also other viruses and microorganisms.”
The study placed MS2 at strategic high-touch points throughout the cabin, including on seat tray tables, arm rests, seat cushions, stowage bins and inside the lavatory and galley. Technicians disinfected each area with various products and technologies. Chemical disinfectants were applied through two means: manual wiping and with an electrostatic sprayer, a device that applies a fine spray of an approved liquid disinfectant.
The tests also measured how well Boeing’s ultraviolet wand and antimicrobial coatings worked. Antimicrobials are long-lasting coatings that destroy germs and viruses on surfaces.
The University of Arizona analysed each area post-disinfection to determine effectiveness. The results showed various levels of effectiveness, but ultimately all the recommended products, methods and technologies successfully destroyed the MS2 virus.
Boeing and the University of Arizona continue to test recommended cleaning methods in a lab against SARS-CoV-2 and other similar viruses to further validate their efficacy.
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