I know a lot will disagree and many will be righteous in their responses, but I have always used my bedroom as the quarantine room, it has served me well and they end up sleeping next to their human soon enough. I know how much hell it is before they get used to your sleep cycle but I’m not convinced there is any method that creates the bond that sharing a living space does. Add an air purifier and the litter smell is nonexistent.
Your bedroom is the perfect quarantine room. Not sure why you think people would disagree.
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