The portable air conditioner has two vents and does not stay inside. I tried regular duct tape and of course it didn't work. A vent naturally gets very hot, so finding the right strap was important to me. I'm not familiar with tapes in general, so this took some time. Some reviews of other good brands said they had a toxic smell but this one didn't. For me it's like magic. Once you apply the tape it stays in place so well it will never come off.
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Gorilla Crystal Clear Repair Tape, 1.88β X 9 Yd, Clear, (Pack Of 1)
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