The electric air-supply long tube air breathing apparatus is a protective device that uses a small air  blower to supply the user with fresh air that meets the standards of atmospheric quality through a non-toxic and odorless long tube. Its intake end must be placed in a pollution-free environment. It can be divided into ordinary electric air-supply long tube respirators, electric air-supply long tube respirators with rechargeable batteries, and explosion-proof electric air-supply long tube respirators. According to the number of users, it can be divided into single-person, two-person, three-person, four-person, and more than four-person types. According to the different types of hoods or headpieces used, it can be divided into hood-type and face mask-type.