The award-winning project "Research and Application Technology of Active Collaborative Noise Reduction Technology in Low-noise Air Conditioning" and low-noise air conditioning products can solve problems from the source, allowing air conditioning not only to regulate temperature, but also to bring a quiet, efficient, and energy-saving comfortable experience. In response to the noise issue that consumers are most concerned about, Gree has started from the root of air conditioning vibration and noise, and invented a new rotary four cylinder compressor. The torque fluctuation and vibration displacement are reduced to one tenth of traditional compressors, greatly reducing the vibration noise during air conditioning operation from the source; Combined with the unique gas-liquid separator flexible vibration reduction technology, it solves the additional noise caused by resonance in traditional air conditioners.