1. cooling efficiency as high as 80% . 2.Environmational, do not contain chemicals allerergic to skin. 1. Large evaporative area, cooling efficiency as high as 80% . 2. The products include surface active agents, absorb water naturally, fast speed of pervasion, lasting effectiveness. A drop of water can diffuse in 4-5 seconds. Height of absorb water; 60-70mm/ 5seconds, 200mm/ 1.5hours, can meet international standard. 3. products do not include chemicals which are allergic to the skin .It is nontoxic, harmless, safe, energy saving, environment-friendly , practical and economic.