Absorbers are materials or devices that soak in or take up moisture, sound, vibration, or other types of energy. There are various synonyms for absorbers, depending on the specific energy they absorb. For instance, moisture absorbers include dehumidifiers, desiccants, and absorbent materials like silica gel or activated carbon. Sound absorbers are also known as acoustic panels or soundproofing materials. Vibration absorbers or dampers include shock absorbers, springs, and rubber mounts. Other examples of absorbers are heat absorbers or coolants, light absorbers or filters, and radiation absorbers or shields. Whatever the type of absorber used, they all serve the purpose of reducing or eliminating unwanted energy or noise in a particular environment or system.