Infrared Wavelength scope:3u-50u(micron) Partical size:500nm Far infrared emissivity :0.87~0.91 package:25 kg per bag Application of nano far infrared ceramic powder:*It is widely used in cosmetics, health products, manufacture of ceramics, paper, wood, medical, beauty, health supplies, home supplies, bedding, automotive supplies, cleaning supplies, sports health class, cold boxes, crisper , ...