1 . According to the cleanliness of the environment, the filter is replaced regularly (the initial effect is generally 1 to 4 months, and the efficiency is generally 4 to 12 months ) .

2 . With the present embodiment cleanliness purified product cleanliness periodic measurement zone or dust particle counter, when measured does not match the cleanliness and cleanliness requirements shall identify the reasons (leaks, whether a high failure, etc.) if efficient If the filter has failed, a new high efficiency filter should be replaced.

3 . Shut down when replacing the high efficiency filter and the primary filter.

4 . Pay attention to the following when replacing the high efficiency filter:

l When replacing the high-efficiency filter, special care should be taken to ensure that the filter paper is intact when unpacking, handling and installation. It is forbidden to touch the filter paper by hand to cause damage.

l Before installation, place the new high-efficiency filter on the bright spot, and see if there is a loophole in the high-efficiency filter due to transportation, etc. If there is a loophole, it cannot be used.

l When replacing the high-efficiency filter, first remove the cover, then remove the bead, then take out the failed high-efficiency filter and replace it with a new high-efficiency filter. ( Note that the arrow mark of the high-efficiency filter should be consistent with the flow of the purification unit. ) and put the pressure frame and the cover back into place.