| 摘要 |
An anti-allergen filter (1) and an air cleaning system (11) using the filter, the anti-allergen filter (1) comprises two or more filter layers arranged in an air flow direction, at least one layer positioned at a downstream side in the air flow direction comprises a first filter layer (4) containing an anti-allergen agent, and at least one layer positioned at an upstream side of the first filter layer (4) comprises a second filter layer (5) containing a porous material with a moisture absorbing/releasing property so that a moisture absorbing/releasing performance within a predetermined range of moisture absorbing/releasing amount can be exhibited. The filter (1) can always achieve both of an excellent performance for trapping allergen substances and a high inactivating rate for the trapped allergen substances stably, thereby exhibiting an excellent anti-allergen performance.
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