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Mc writes

If I cover my ac unit, can I spray Suspend Polyzone around it?

I would like to prevent entry of American cockroaches through AC unit, but I assume we would not want to spray the unit directly. Is it safe to cover it with a plastic drop cloth or tarp and spraying around the unit?


You could potentially spray Suspend Polyzone around an AC unit as long as you are not spraying directly into any vents or electrical equipment. Be sure that you have installed the unit correctly and sealed up the edge properly. It would be unlikely for roaches to enter through equipment like that if it is properly maintained and in working order.

Answer last updated on: 02/02/2021

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