All hazards › Household › Paint Thinner & Mineral Spirits & cats

Is Paint Thinner & Mineral Spirits Safe for Cats?

☠️ Toxic
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just ate or touched something and looks unwell, skip the reading and call your vet — or Pet Poison Helpline (US): (855) 764-7661, ASPCA Poison Control (US): (888) 426-4435.
Highly dangerous. Solvent fumes and licked droplets both harm a cat, and any swallowed amount carries a fatal aspiration pneumonia risk.

Why it’s a problem

Cats respond to irritant fumes faster than dogs because of their sensitive airways, so a thinner-soaked rag in an unventilated room can sicken them without direct contact. Direct exposure comes from stepping through spills or brushing against wet rags and then grooming. As with all hydrocarbons, the worst damage occurs when the liquid reaches the lungs.

How to keep your pet safe

Paint with the cat shut in another part of the house, keep solvent containers sealed, and take rags outside to dry flat before bagging them. Wash brushes in a room the cat cannot enter.

Warning signs to watch for

Squinting or watery eyes, coughing, drooling, vomiting, staggering, rapid breathing, lethargy, weakness.

When to call the vet

Move the cat to fresh air, wipe any residue off the coat with a damp cloth, and call a veterinarian or pet poison hotline immediately. Never induce vomiting and never feed oils or fats.

Common questions

My cat was in the room while I cleaned brushes, is it harmed?

If the room was well ventilated and there was no direct contact, the cat is probably fine, but watch for coughing or squinting. Any coughing, drooling or wobbliness means calling a vet now.

I cleaned brushes with the window open, is my cat safe in the same room?

Ventilation helps, but a cat’s airways are more sensitive than yours, so close the door on the project instead. Fresh air for you is still solvent fumes for a cat two feet away.

More household hazards for cats

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).