Patent ID: 8231718

Claim:
A sealed air purifier whose housing has an air inlet connecting its inside and outside and is installed with a gate for controlling the air inlet; wherein the housing has an air outlet connecting the inside and outside and a blocking element for controlling the air outlet; the housing is installed with a processing device that detects the displacement of the gate; the housing consists of a first shell and a second shell connected together; the first shell and the second shell are connected by a separable connecting base and connector; a retractable bag encloses the connecting base and the connector; a sealing structure is disposed between both ends of the bag; a compression assembly, a sterilizing device, and a super ULPA filter are disposed in sequence between the air inlet and the air outlet inside the housing; the compression assembly is disposed in the first shell so that pressurized air is delivered to the second shell via the connecting base and the connector when the compression assembly functions; when the air inlet at the gate is open, the processing device simultaneously starts the compression assembly and the sterilizing device so that air flows through the air inlet, the sterilizing device, and passes through the super ULPA filter at an increased pressure, and the blocking element opens the air outlet for outputting sterilized air; the second shell has the air outlet connecting the inside and outside and a blocking element for controlling the air outlet; when the air inlet at the gate is closed, the processing device simultaneously closes the compression assembly and the sterilizing device, and the blocking element closes the air outlet as well; a sterilizing device and a super ULPA filter are disposed in sequence between the connector and the air outlet inside the second shell; when the super ULPA filter and the sterilizing device needs to be replaced periodically, one only needs to separate the connecting base and the connector and then seal the sealing structure of the bag, rendering the second shell a sealed filter system.