... Deodorize, Disinfect 3. Safety and economic 4. Portable Boots warmer Our company is the first patentee of PTC (Positive ... can be applied to electronics, circuit protection and electric heating. That's why our Polymer PTC shoes dryer ... dryers. It is the safest and most environmental protection electric dryer.Product features:1. PTC Heating Materials2. Dehumidify, ... .W/ G.W: 12KG/12.8KGS boots warmer