Silica gel desiccant sachets can absorb and hold water vapour from the air Silica gel bag can absorb up to four grams of water - 20 to 40 per cent of its own weight. Prevent moisture damage and corrosion, used for a range of applications such as preserving books and photographs, leather products, make up bags, Silver Jewellery etc. No more smelly gym / Travel bags: Few silica gel packets in your gym bag will eliminate dampness, and help keep your gym-bag germ and whiff-free. Rescue your drowned phone: You can save your phone from drowning by leaving it in a bowl of silica bags - and apparently, it's 10 times more effective than leaving it in a bowl of rice.