Silica Gel Desiccant Packets
Packets of silica gel are used to absorb moisture in all kinds of consumer products, from medicines to electronics to, of course, shoeboxes. They are also widely used in compressed air systems. It's possible to prevent system breakdowns due to the build up of moisture by filtering the compressed air through desiccant filter. This technique is used in compressed air systems in railway locomotives and industrial settings. Compressed air systems with moisture adsorbers are also needed to prevent the degradation of the signals transmitted by high-capacity radio and satellite transmitters.