Thanks to All of You!
I’m going with a physical barrier of several layers of leftover metal window screen covering the air intake and a microfiber towel soaked in in peppermint oil and stuffed inside of the narrow air intake. I zip tied the layers of metal screen with some zip ties and left the intake rotated up so I can quickly check it every month during winter storage of the RV parked right next to our garage. Drau2th
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