selection of PPE is now over to the forum experts
clearly everyone is an an expert
ive Tried so hard to help but it ain’t going down
stick to the internet and do what ever you want.
Over and **Language**ing out
I'm even more befuddled . . . OP asks for suggested reusable filters ., . he gets some suggestions . . . you ask for details of the posted filters (half an hour after I posted my suggestions, so I assumed you were offering an opinion on them) so I provided a link - which showed the P3 and APF20 classification - which fit with everything you've ever said being required for filters being used for DIY welding purposes - and your info on that subject in the past is what informed my purchase (so thank-you).
Every other post has to been to answer a question posed - an exchange of info - nothing (for once) posted disagrees with your offered knowledge?