Just a note on what happens when you vent through a window screen and then engrave a ton of acrylic:
Happily, it mostly wipes away.
Why yes, that is the healing and cooling air intake fan for my house right outside the window…
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If that’s a heat pump, there’s not any air going from that unit into your house. No worries there.
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That shouldn’t be an issue for you…just cools the refrigerant in the line. Your air intake should be inside your home.
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5 seconds with a toothbrush and rubbing alcohol clears mine up.
Oh good! Not so bad with woods, but acrylic, yeesh.
Although you might want to clean out the radiator coils on that side more often. 
Should be cleaned 2x yearly anyway, but… 
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