Face masks are "the most essential" aspect of a wider range of measures to guard against the spread of Covid-19 during air travel, a new study has found.
Research by Harvard’s TH Chan School of Public Health found layering a range of "risk mitigation strategies", such as the universal wearing of face masks, introduction of stringent new cleaning and disinfection protocols, and insistence on advanced air ventilation and filtration systems, significantly lowered the risk of Covid transmission onboard aircraft.
The "gate-to-gate" study concluded the risk of Covid transmission in-flight is below many "routine activities" that have continued during the pandemic.
"Implementing layered risk mitigation strategies... will help ensure air travel, with respect to SARS-CoV-2 [Covid-19] transmission, is as safe or substantially safer than the routine activities people undertake during these times," read the Harvard report.
"This layered approach, with ventilation gate-to-gate, reduces the risk of transmission onboard aircraft [to] below that of other routine activities during the pandemic, such as grocery shopping or eating out."
Specifically on face masks, the report added: "Face mask requirements are perhaps the most essential layer of a comprehensive set of measures to reduce transmission of Covid-19 throughout air travel."