Air Purifier mainly uses an air filtration system composed of a pre-filter and a HEPA high-eficiency filter toadsorb and filter particles and harmful aerosols 25um indoors. lt achieves disinfection and purification of theair in the disinfection space through UV/lysozyme module, resulting in a cleanliness level of 6 (equivalent tothe original level 1000) and a local level 5 (equivalent to the original level 100) in terms of disinfection. Thiseffectively reduces the chances of indoor personnel such as medical staff and patients aetting infected.