Any cat lover knows litter boxes are not fun to clean or even have around in any room. Their smell is not pleasant either. The VentiFresh Cat Litter Deodorizer can help with that. It has a quiet fan to draw smelly air into the device. it doesn’t use any chemicals and uses 3 W/h of power.
You can power this device with a portable power bank. Costs under $90 at this time.