1. This evil little heater adopts corrugated electric heating wire and bionic turbo fan, which can heat quickly and evenly, recycle cold air, bring you warm wind, and keep you warm like spring in cold weather.2. Overheat protection device and automatic fuse3. When the machine temperature is too high, the machine will automatically cut off the power and stop heating. If the internal temperature of the machine exceeds the safety value of the fuse, the power will be cut off automatically.4. Fine hole design can keep fingers out and avoid injury.5. Our portable heaters draw all their power at cooler temperatures to quickly reach threshold temperatures. Once steady state is reached, they consume less energy than conventional heaters, ultimately saving more energy throughout their operation.