People's defense project, full name of the people's air defense project also called people's air defense fortification, refers to the protection of wartime personnel and material shelter, people's air defense command, medical rescue and construction of separate underground protective buildings, as well as combined with the ground construction of the wartime can be used for air defense of the basement.
Electric pedal dual-use fan is a kind of human defense equipment, when the human defense fortification, air defense basement in the war power is destroyed, the enemy uses atomic, chemical or bacteriological weapons in the case of the use of filtration ventilation protection indispensable equipment. The focus of its technical indicators, is to ensure that the war manpower drive to meet the requirements of the filtration type ventilation, at the same time, consider the level, the combination of war, the use of electricity as a human defense works, underground hotels, restaurants and shopping malls for ventilation.
Foot pedal electric dual-use fan often work is electric, only when the air defense basement power supply is destroyed during the war to use the foot pedal. So usually should be configured with power supply to meet the usual ventilation needs.