1.Powerful motor,large air delivery,lonf-life. 2.The metal body use the exellently facieces disposed,brightness and rust-proof,display dignity. 3.The panel use the new sculpts design and ABS material,corrosion-proof,aging-proof and colorfast. 4.Have passed the IPX4 test,safer in use. 5.Suitable for public area,kitchen,gym,factory and so on.