Now that we better understand how the virus spreads, increasing the use of FFP2 and FFP3 masks should be a priority
It is now accepted unequivocally that the virus responsible for Covid-19 is airborne, travelling metres on an infected person’s breath within liquid microdroplets and aerosols. One of the most important measures to prevent transmission of an airborne respiratory virus is the use of masks. Any face covering is better than nothing, but in the UK the government hasn’t informed people about the most effective protection, or ensured that they have access to it.
Nearly two years into the pandemic, official guidance remains confusing. The government still discourages non-healthcare workers from obtaining PPE, including certified respiratory protection, stating that it is used in a limited number of industrial and healthcare settings.
Claire Horwell is professor of geohealth at Durham University and has an honorary contract with the UK Health Security Agency
