Mainstays 4" 3-speed Portable Rechargeable Fan, Flexible Tripod and Digital Display, Black, Model#FN1005NBK

For me, picking up this $20 fan from Walmart was a game changer. 3 settings, but the medium setting would last me sleeping 6-7 hours while still having like 30% charge left over. Combine that with like $20 rain guards for your windows and you have some air circulation! https://www.walmart.com/ip/MS-FLEX-FN-W-D-BK/17930304116?wmlspartner=wlpa&selectedSellerId=0&wmlspartner=wlpa&cn=FY25-ENTP-PMAX_cnv_dps_dsn_dis_ad_entp_e_n&gclsrc=aw.ds&adid=2222222229817930304116_0000000000_21407473164&wl0=&wl1=g&wl2=m&wl3=&wl4=&wl5=9198748&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=17930304116&veh=sem&gad_source=1&gad_campaignid=21690411341&gclid=Cj0KCQjwjIPSBhCCARIsABGyK7tKCiwZFt-MYKOkPnIUU9av3cb214jlozu_D-FJsgRyfegPd4SJnUgaAn5_EALw_wcB

Looks like this one: https://www.walmart.com/ip/MS-FLEX-FN-W-D-BK/17930304116