There are several essential supplies that are included in first aid kits for the treatment of injuries. A variety of first aid kits are available for a variety of occupations, and they can be used in a variety of different workplace situations. It is also possible to find first aid kits that come in bulk packaging as well as those that are packaged in single-use packets. The first aid kit of a welder will include dressing pads, wipes, and bandages in addition to several other items. The construction industry, electricians, food service, and office units also require specialty first aid kits.