I am in awe over the Transom Window Air Circulator I put it in my window in the kitchen and could tell instantly could tell a difference. It was so easy to install and I could have fresh air again. It’s been very hot so I welcome the circulation of fresh air. Can’t wait for the temperature to cool and have some fresh  air giving the a/c a rest. The design,quality,and the performance is great. Definitely spreading the word this is a must have.