My 2, 3 month old kittens have recently started sneezing (every day several times) and I think it may be the cat litter. I use catsan as the breeder used it and I notice it is quite dusty. I have vacuumed the house and will see if that helps; can anyone recommend some non dusty litter and the process of swapping.
NB: The Kittens have had their first lot of vaccinations and are due the second lot on 29th Nov.
Thanks.

Just be on the lookout for other signs that may mean it's an illness (which would be my first guess). Runny or teary eyes, runny nose/sniffles, and of course decrease in appetite and/or decrease in activity level. If any of those things accompany the sneezes, you should probably take them in to the vet. All three of my cats had upper respiratory infections within their first few months with me.

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The little monsters 3

Thanks brianj12. They are well in themselves, bright eyed, noses are fine, good appetites and eliminations, which is why I think it may be dust either house or from the litter.

It could definitely be the dust from the cat litter. There are many dust-free cat litters -- so check them out. Also, there could be dust around your house that is aggravating them and cats can have allergies! Just keep an eye on them and if it continues too much longer, then I'd have them checked out by a their vet. You do not want to have to deal with an upper respiratory infection. Pills, nose drops, I've gone through that with a previous cat and it was not fun at all, so I really hope it's just something airborne and you can figure out what it is causing the sneezing.

Thanks for your advice. I have changed the litter to clean paws clumping, they haven't sneezed since!