After an eruption one of the possible hazards is widespread ashfall. The Civil Defence Emergency Management Office says; If you have to go outside use protective gear such as masks and goggles and keep as much of your skin covered as possible. Wear eyeglasses, not contact lenses as these can cause corneal abrasions.
Gloves, in addition to coveralls, goggles and masks will ensure as much of your skin as possible is covered.
These gloves are high quality medical grade latex. They come in packs of 100.