The most earth-friendly decision you can make is to stick with your old CRT until it bites the dust, but when it's time for a new one, is there a truly greener flat-screen TV?
对地球最友好的决定，是继续使用旧的CRT电视机，直到它布满灰尘。但等到要换新电视了，真的有更绿色环保的平板电视吗？
Air conditioning in the use of a period of time, screen pack, evaporator and air supply systems will build up large dust, dirt, producing a large amount of bacteria, virus.
空调在使用一段时间后，过滤网、蒸发器和送风系统上会积聚大量灰尘、污垢，产生大量的细菌、病毒。
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。
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。
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