Silica gel desiccant is a highly effective moisture absorber that can protect products from dampness, mold, and odors. It adsorbs up to 34% of its weight in water vapor, much more than typical desiccants. Silica gel can be reused by heating to remove absorbed moisture and remains chemically stable except for reaction with strong alkalis and hydrofluoric acid. It is commonly packaged in breathable sachets or bags and used to keep shoes, clothing, electronics and other items dry during storage or shipping.