Description for EEBD
 

The device is composed of compressed air tank. Pressure reducing unit, pressure gauge, air ducts, helmet or face guard and-knapsack. It can provide a constant airflow to an individual for about 10 or 15 minutes for helping humor her to escape away from the place where there is full of poisonous or harmful objects full of smoke or where there is lack of oxygen. From tile pressure gauge on the air tank. you can observe the air pressure in the air tank at any time. The gas or air exhaled from the user is exhausted out through the air exhaust valve on the helmet or on the tace guard. Since the air pressure inside the protective mask or guard is greater than the atmospheric pressure. The surrounding atmospheric air can not enter into the protective mask or guard. Thus it can protect the user breathing due to its small volume. it can be along with and WIU not influence person normal activity.

It has a simple structure and is easy to operate or use. Even an untrained user can use it correctly after reading the directions for use.