MS3C-300TSB Battery Powered Stair Evacuation Chair is ideal for emergency evacuation during fires or power outages or for use at home for assisted mobility up and down the stairs. Battery-powered unit significantly minimizes caregiver injury by replacing manual lifting with electric operation. With high durability rubberized track, individuals can be easily transported up or down on virtually any staircase surface. Ideal for medical facilities, multi-story commercial and residential buildings, fire and EMS vehicles.