Blue Pure 511i Max

I've flown repeatedly with my BlueAir 511 in checked luggage. It's comparable to a Levoit Core 300. Maybe your luggage is the problem?

Best overall: Coway Airmega AP-1512HH Mighty Probably the safest “default” choice. It’s been recommended for years because it just works — strong HEPA filtration, decent carbon layer, auto mode, and very solid reliability. Not fancy, but very balanced for most homes. Best budget pick: Levoit Core 30

I just put an air purifier next to my LR4. No smells at all. And that water bowl doesn’t belong there. Cats don’t like to eat and drink near where they poop. It’s a Blue Pure 511i Max. Small. Quiet. My LR4 is no where near a window.