A rod-baffle condenser with spirally corrugated and sawtooth-shaped finned tube was used in a water-cooled air conditioner system. The testing result shows that this air conditioner has higher performance. Compared with air conditioners using normal finned tube( lower fin) condenser. the refrigerating capacity of this air conditioner increases by 3. https://parisnaturalfoodes.shop/product-category/sound-sleep/