Humidity Control which is safe and excellent
The main ingredients of the silica
for humidity Control are very excellent in hygroscopicity.
Silica gel which is porous structure and wide internal surface area
on it adsorbs large amount of hydrosphere.
The main ingredient of silicon dioxide (SiO2) which covers about
60% earth crust and is very stable, and there is no ingredient change.
SiO2 has been approved by the food additive. The safety of silicon
dioxide also has been approved by acute and chronic toxicity examination,
3 types of silica gel and uses