Insecticide

I recently used an insect killer containing bifenthrin to kill ants in our home. When is it safe to let my cats back in the treated area?

- Stephanie M.

The product you mention contains a pyrethrin-like insecticide in a very small concentration. As with most residential-use insect sprays applied per label instructions, once this product has been allowed to dry, very little if any of the insecticide would be available for your cat to come into contact with. We would not expect a problem from your cat returning to the treated area once dry.

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