Hmm, that'll not work very well for my use-case then. I've not got a great nose, and I would like to keep smells at bay for visitors. Not planning on replacing

Hmm, that'll not work very well for my use-case then. I've not got a great nose, and I would like to keep smells at bay for visitors. Not planning on replacing a filter monthly "just in case" though. Thanks for the info!