Dumping and power-off protectionThe heater will stop running when it is accidentally dumped, and it will be powered off to avoid collision and leakage, and it is more safe to use Air circulation, can be used in all four seasons one machine can be used for multiple purposes, spring, summer, autumn and winter can be used, convenient and cost-saving Wide-angle and wide-range heating It can not only supply air from left to right, but also adjust it up and down. It is convenient for heating. The warm air can be delivered in all directions, and the whole family can share the warmth with one machine. Four-fold safety protection no open flame operation, safety grille, anti-flame retardant material, overheating and power failure protection Customer Care I hope you can enjoy a pleasant shopping experience. If you have other questions please contact us email for free.We are happy to help you as soon as possible within 24 hours.