The device can dispose of pathogenic bacteria-contaminated waste matters from hospital including injector and bandage with abundant home materials in accordance with the actual conditions.

Such waste matters have been buried or burnt in general. The air polluted by acrid smoke has a harmful influence on human body and natural environment.

Scientists completed successfully the device by resolving technological issues such as the method of raising its natural ventilation capacity and the rational selection of filter layer place.

The device with two combustion tubes and an exhaust pipe is profitable for its simple structure and no consumption of electricity.

The device has been introduced into Pyongyang Municipal People's Hospital No. 2 and other units to pay off profusely.