Rabbit litter for respiratory concerns

Respiratory irritation from litter is a real and underappreciated issue with rabbits — their airways are sensitive, and dusty or aromatic litters can cause chronic low-grade irritation that's easy to miss until it's been going on a while. Good on you for taking it seriously with a 6-year-old Hotot. Before I point you toward something specific, can you tell me what litter you're currently using, and what symptoms you've been noticing — sneezing, discharge, laboured breathing?

That's a very common culprit. Pine shavings — especially when they're not kiln-dried — release aromatic phenols that irritate rabbit respiratory tissue. Even kiln-dried pine can still shed a lot of fine dust. Your vet's instinct to start there is sound. A few quick questions: does he use the litter tray only, or does he have shavings across a wider floor area? And is he housed indoors or outdoors?

That's helpful — contained to the tray makes the switch straightforward. For a rabbit with respiratory sensitivity, I'd go with Oxbow Pure Comfort Bedding, specifically the unscented white version. It's made from reclaimed paper fibre, virtually dust-free, has no added fragrances or phenols, and it absorbs really well which keeps ammonia levels down — another thing that can irritate airways. It's soft underfoot too, which matters for an older rabbit spending time in the tray. I'd avoid anything made from hemp or wood until you've confirmed whether he's reacting to dust, aromatic compounds, or both — paper is the cleanest baseline to test against.

It's a reasonable assumption but paper actually holds its own — good paper litter absorbs urine quickly and traps it rather than letting it pool, which is where the ammonia smell comes from. The aromatic oils in pine do mask odour in the short term, but they're doing that by overwhelming your nose rather than actually neutralising anything. Oxbow Pure Comfort performs well for odour control provided you're spot-cleaning daily and doing a full change every two to three days, which for a solo litter-trained rabbit is pretty easy to keep on top of.

Just swap the litter first — that gives you a clean variable to assess. If the sneezing improves within two to three weeks, you've found your answer. If it doesn't shift much, the next things to look at would be hay dust (a big one — some hays are much dustier than others) and any air fresheners or cleaning products used near his area. But start with the litter, give it a few weeks, and see. At six years old he's in his senior phase, so keeping his respiratory environment as clean as possible is genuinely important for his long-term health.