@holmesr@mastodon.online @Pat

Hi again. Thanks for the feedback and for engaging, much appreciated.

We think overhead elastic is critical to getting good fitted-filtration (ie, net filtration of a mask on a face). We summarize this here ⬇️

https://maskevidence.org/head-attachments

In North America, #N95s must have overhead elastic simplifying our advice in favour of these over #KN95 or #KF94

There are data on beards, too!

For a 10mm beard, an N95 is still more effective than all other masks.

https://www.nature.com/articles/s41370-021-00337-1

If the stifling feeling is specifically associated with headstraps for you, they could be too tight. Aura 3M has simple band elastic straps that lengthen with a good hard tug. This is a pro in this situation for you.

For straps that don't lengthen so easily, consider an #N95 with braided elastic such as Vitacore's #Can99.

Vitacore's Can99 also has superb breathability so if the problem isn't the attachments, this might help.

Apologies for a N American reply to a European question.

Anyone curating info on #FFP2 or #FFP3 and suppliers please let me know: we would love to put this on our website.

#WearTheBestMaskAvailable

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