I don't recommend Levoit. I've had two of the very expensive ones die in the last year. Both the same kind of death where the software gets confused and it doe

I don't recommend Levoit. I've had two of the very expensive ones die in the last year. Both the same kind of death where the software gets confused and it does not respond to any commands and won't boot. Crazy that we live in an age where a fan+filter+sensor needs to boot an operating system.