My facemask. I hate wearing this thing because it is bloody uncomfortable. It is slightly too small for my fat head, so the rubber bands are digging into my ears (if I have to wear this fo actually months I will probably get califlower ears. Also it somehow directs my breath upwards , so that my glassed get fogged up. I only wear it when its unavoidable to get closer than 1.5 - 2 m to other people, like on public transit or in the supermarket.