Woman ‘left with no choice’ but to buy every packet of peanuts on flight
www.independent.co.uk
‘Eurowings should be ashamed of how they handled this situation,’ says passenger

‘Eurowings should be ashamed of how they handled this situation,’ says passenger

  • great_site_not@lemmy.worldEnglish
    3·
    1 year ago

    As in, removing 99,97% of particles over 0.3 micron in size.

    HEPA filters remove 99.97% of particles that are 0.3 micron in size. (That is the size of particles they’re tested with, as it’s the most difficult to filter.) They remove over 99.97% of particles larger or smaller than 0.3 microns.