FILTER CORE AND FILTER

摘要

A filter core (2) involves a filtering paper canister (8) and an annular upper ring (6) and an annular lower ring (7) connected with two ends of the filtering paper canister. Corresponding to about mid location of the each drape of the filtering paper canister, at least on the outer surface of the annular upper ring (6) and the annular lower ring (7) there is a gap. The filter core (2) can be swelled up to largen the interval between the drapes of the filtering paper canister (8) when the filter core is washed, thereby it is convenient to clean the filtering paper canister. The invention also discloses a filter comprising the said filter core.