Any air filter can use one (or more) of three different techniques to purify air.

任何空气过滤器都会采用下述三种空气净化技术的其中一种(或多种)。

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Potting up green plants in the house will purify the air inside.

在房内盆栽绿色植物可以净化室内空气。

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Besides the air, the farms would also recycle and purify gray water, which is wastewater from sinks, bathtubs and drinking fountains.

除了空气，昆虫型农场还能回收和净化来自水池、浴缸和饮水机的生活污水。

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It combines a dehumidifier with a water purifier, to essentially suck the moisture from the air and, instead of discarding it as one normally would, purify it to make it potable.

ENGADGET: Dehumidifier + water purifier = Air2Water potable water device