@azonenberg Wow, you had it figured out early. I was lucky, here in Australia we managed to eliminate it (several times, the politicians kept letting it back in) and we were pretty safe until I learned from Twitter that respirators do work, so I was mostly ready when they reopened the borders. Kept kid home until we had found a decent KF94 for them, though that didn't quite pass testing with 3M FT-32 and nebuliser. Trident P2 XS does pass testing, but it is hard being the only kid wearing one