- Screen out FIR radiation material from natural mining.
- Sources of mining, screening methods, formula proportion, process technology, etc. will affect the FIR emissivity
- Pure, long lasting emission effect and the wavelength can be adjusted by formula ratio.
- Treating the organic material with high temperature, ex: bamboo charcoal
- The principle is to change the arrangement of molecules in order to increase the FIR emissivity
- Mix the material into fiber and make fabric cloth with 1~2% ratio only
- The FIR effect will decay over time, and contains lower level of far infrared (higher level of near infrared)