If you are using fleece as bedding, that could be the case. If you are, try switching to a nice bedding that isn’t dusty.
If your rats have a litter box, make sure that the litter isn’t getting too dusty. Check how dusty your bedding is too. If either of these are too dusty, this can make the rat have respiratory issues and trouble breathing, which often comes with sneezing.
If your rats have a litter box, make sure that the litter isn’t getting too dusty. Check how dusty your bedding is too. If either of these are too dusty, this can make the rat have respiratory issues and trouble breathing, which often comes with sneezing.