With warmer temperatures finally hitting the north east, my son has basically given up his "office" saying it's too hot in there. The sunshades and AC settings do nothing for him. So I was researching and found O2Cool 10" fans as one good option but wondering if I need 2 and the one with the stands/legs or what. Any other good options? Please tell me exactly where you placed them and how much does it help? Thanks!