Patent ID: 8549895

Claim:
An air filter leak inspection method, comprising: passing an aerosol to be filtered containing particles through an air filter from one side of the air filter, wherein the air filter has a first edge and a second edge parallel to each other; providing a leakage inspection unit at the other side of the air filter, wherein the leak inspection unit includes n probes, and n indicates a positive integer, and the probes face to the air filter; and setting a moving procedure to traverse the probes between the first edge and the second edge, thereby scanning the entirety of the air filter, wherein, when the probes move to the second edge, the probes move along the extending direction of the second edge for a designed distance, the designed distance is less than the length of each probe, the number of times that the probes traverse between the first edge and the second edge is determined according to the number of the probes, the length of the each probe and the height of the air filter, wherein the step of setting the moving procedure, comprises determining the number of times that the probes traverse between the first edge and the second edge according to the following formula (1), ( n× 2)× i×w ≧(( n× 2)× i− 1)× C+y formula (1) wherein n represents the number of probes, i represents the number of times that the probes traverse between the first edge and the second edge, w represents the length of each probe, C represents a compensation value, and y represents the height of the air filter.