Clean the filter screen and press it back.
将滤网清洗完毕按原样装回即可。
Regular cleaning the screen: dust filter mesh, can jam reduce gas effect, changes in temperature should be about half a clean one.
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。
Clean screen pack, install a air filter at the entrance to the end;
清理过滤网，在入口端装一个空气滤清器；
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