Airline mask requirements vary a lot, even within a group like a recent Lufthansa piece demonstrated (read more here).
Although I have recently flown with Finnair, I had no idea that they had allowed passengers to wear various cloth masks and were not, at the very minimum, requiring surgical ones.
You can access Finnair here.
This will, however, change from August 16, 2021, when Finnair will require passengers to wear surgical or N95 standard masks without valves, per the announcement on Twitter.
Starting 16 August, we will no longer accept fabric masks on our flights. We accept surgical masks, FFP2 or FFP3 respirator masks without a valve or other valve free masks with the same standard (N95). Please remember you need to wear a mask throughout the entire journey. pic.twitter.com/Am4SxtT1G3
— Finnair (@Finnair) August 13, 2021
Lufthansa’s complicated mask requirement:
I think that the masks requirements by Lufthansa Group airlines demonstrate how difficult it is to come up with one accepted by various countries or even states within countries.
IMHO, if you have a mask requirement in place, why not require at least a surgical one now that they are widely available and reasonably priced?