Review on 🌬️ AC Infinity MULTIFAN S5: Ultra-Quiet Dual 80mm USB Fan for Efficient Cooling of Receiver, DVR, Playstation, Xbox, Computer Cabinets - UL Certified by Rob Bradford

PROBLEM: The refrigerator is a 36-inch built-in KitchenAid refrigerator. From the fridge side, with the exception of a useless drawer, all cold air is supplied via the top shelf (rear left corner). The shelves are glass so it practically stays there. [My later installed GE used a vertical duct to blow cool air down the center of each shelf.] I monitored the temperature remotely with two Bluetooth thermometers. The SensorPush wireless thermometer/hygrometer for iPhone/Android is a smart humidity and temperature sensor with alarms. Both were placed in the right rear corner, away from the cold air intake. The average temperature over the 24 hours was 31.2 degrees on the top shelf (the yogurt was frozen which caused the problem) and 42.0 degrees on the bottom shelf. FIX: I used two sets of fans connected together. Set 1 ran at high speed: a fan on the top shelf below the air intake forced cold air down behind the shelf; Another fan was on the bottom shelf (in the same corner) sucking in air. Kit 2 ran at low speed and pulled air into the middle two shelves (same corner). A USB cable came out of the bottom corner of the fridge to the charger. on the back wall. RESULT: The average temperature for 24 hours was: 36.3 degrees on the top shelf, 38.6 degrees on the bottom shelf. I haven't played with the setting so it's probably not the best. It can even work with a set of fans.