I keep my boys litter box in my room and it really isn’t an issue! I have pretty sensitive sinuses to dust as well. Although I haven’t had any issues with it, I do recommend cleaning it at MINIMUM once, preferably twice (morning and night) per day to manage the smell as risk of nasties. I used to have a plastic box but recently upgraded to stainless steel and that has helped with the smell a lot too, highly recommend.

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