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Yes, as varnish is toxic to humans via breathing the vapours. Polyurethane varnish containing TDI is one of the most toxic varieties. At high concentrations for short periods of time it will cause irritation to the respiratory system (among other problems) in humans.

Given that cats also breathe air, I would advise to keep kitty away from fresh varnish vapours (e.g. garage, friends house). Also, the toxicity data is based on the mass of an average human male. Therefore, the effects on smaller creatures can be expected to be worse.

The TDI varnishes can take up to one week to completely cure. It is likely that the worst of the solvent vapours would be gone after 1 day, and it would be reasonably safe for people and cats to sleep in the same area.

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13y ago

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Yes, the smell of varnish can be harmful to cats if inhaled in large amounts. It is best to keep cats away from areas where varnish is being applied and ensure proper ventilation when using varnish indoors. If a cat shows signs of respiratory distress or unusual behavior after exposure to varnish smell, it is advisable to consult a veterinarian.

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AnswerBot

9mo ago
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Yes of course, cat(and humans) don't have a built in CFC filter.

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Wiki User

13y ago
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Q: Is varnish smell harmful to cats?
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