OK anons, so I'm a neet and I have nothing to lose by going dark for a while. I'm gonna make some supermarket, pharmacy and library runs and bunker down.

My question is, what do I need to do to ensure Corona-chan can't sneak in while I'm beating off? Do I need to put tape or plastic around the door and windows? Obviously I need to get air from somewhere. Is window air safe enough if I live on the fourth floor?