Fir perfectly in the mask as designed. Great experience of regularly wearing the mask and replacing filters without issue.
This company makes best anti-Covid masks I have yet found and the accompanying filters are similarly of the highest quality. People have asked me 'where did you get your mask?'
I’ve been using the People’s Rainwear mask for about a year now, and I’m very happy for it and the KN95 replacement filters are good.
It's the velcro fastening at the back which makes this mask so comfortable: it feels secure without pinching the back of my ears. Recommended!