找到一个带MERV 11或12的一次性的高效媒介的过滤网。
Look for one with a MERV 11 or 12 disposable high efficiency media filter.
定期清扫过滤网：灰尘会堵塞滤清器网眼，降低冷暖气效果，应半月左右清扫一次。
Regular cleaning the screen: dust filter mesh, can jam reduce gas effect, changes in temperature should be about half a clean one.
颗粒状较大的油雾状物和灰尘首选被吸入，并与撞击板相撞而落下，然后由一次和二次滤网将大部分雾状物除去。
Suck mist and dust in large particle size first, collide with collision board and drop, and then remove most mist by first and second filter screen.
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