I wonder about this every time I go through a revolving door. I'm glad to see a webpage speak to it. You can also speak to anyone who works near both revolving

I wonder about this every time I go through a revolving door. I'm glad to see a webpage speak to it. You can also speak to anyone who works near both revolving and regular doors, such as building receptionists. They will quickly tell you the revolving door lets far less cold in, and will probably tell you with a good deal of frustration how much they hate the regular doors.