FFU laminar flow unit is an air filtering and purifying unit with its own blower fan, it comprises of primary efficiency filter, blower fan, high efficiency filter and static pressure box.
FFU层流罩是一种自带风机的空气过滤净化单元，它由初效过滤器、风机、高效过滤器和静压箱组成。
Through arranging the air filtering screen with small occupied space and large air filtering area in the indoor unit, the utility model improves the performance of the air conditioner.
通过在室内机中设置占用空间较小而滤风面积较大的空气过滤网，提高了空调器的性能。
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