TECHNICAL DESCRIPTION: 1.The unique quick -installation and compression mechanism for filters not only has a self-locking function to ensure that the filter is tightly sealed without loosening and with zero leakage, but also enables convenient and rapid installation and removal of the filter under the premise of ensuring safety. 2. It is equipped with on - line differential pressure detection for each level of filter to monitor the resistance of the filter and determine whether the filter needs to be replaced. 3. It is equipped with a manual on -line leak -detection scanning device, which can conduct a comprehensive and blind- spot - free leak -detection of the high - efficiency filter. 4. The double - layer bag - sealing device not only ensures the sealing and safety of the replacement bag, but also guarantees zero leakage during filter replacement. 5. The integrally - formed sealed box ensures high -level tightness.