The correct way to cool your Surface is with a Peltia cooler like the one's your CPU uses on a desktop. This is what you should get it will be literally orders of magnitude more effective than blowing air on it, dont use the 'protective film' that comes with it that's to stop glass stress fractures and interferars with heat transer, look up specs of the surface to know where to put the metal sticker, basically offset from under the camera is where the heasink pipes/ CPU is. https://www.amazon.com/gp/product/B0B1TDKFD1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1