The All purpose-In-One CA Apparatus of the CQT-xxxx type, is a new type CA Equipment developed for small-scale CA rooms by Tianjin CNRO Science & Technology Development CO., Ltd., combines functions of oxygen (O2) removing, carbon dioxide (CO2) scrubbing and ethylene (C2H4) scrubbing. It can automatically control the parameters of each CA room in accordance with CA indexing (O2%, CO2%, C2H4%) of different fruits and vegetables, and satisfy requirement for entering and getting out each CA room to move goods frequently. The equipment is composed mainly of a nitrogen generator, a carbon dioxide scrubber, an ethylene scrubber, a gas regulating station and a computer for comprehensive measuring and control, etc..