sheislaurence, 
Today Swedish #masks brand #Airinum is launching #Hale, a portable #airpurifier. https://www.kickstarter.com/projects/airinum/hale?ref=discovery. It claims to remove 99% of airbone particles incl. virus. There are no certifications like #K95 or #FFP2 for purifiers, other than #HEPA, which doesn't give the same level of assurance. This piece of research from Aug22 is promising though https://pubmed.ncbi.nlm.nih.gov/35947419/, but Airinum stopped short of guaranteeing safety from #COVID for @longcovid sufferers. Thoughts? It would be a gamechanger for me