Firstly I don't use a fan. I don't use the fan other than to check that it's working. hot laptop, that will help. For 13 inch laptops this works great. It fits a 15-inch laptop, but it might be too small for that. I have used it in a seated position on several sofas. I also found a setting for lying on the couch. how i use it. Adjusting the angles of the three legs is very easy. Sometimes you have to play around with it a bit and see which setting works best for your situation. There are several recommended settings listed on the packaging. The most important part is to make sure you set the left and right leg to the same settings or they won't be even.
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