Every 10 days or so, clean your filter equal parts white vinegar and warm water. Let the filter soak in the solution for an hour, then simply squeeze it dry before using.

每10天左右，用白醋兑温水清洗过滤器，把过滤器在兑好的液体里浸泡一个小时，在用之前把它弄干就可以了。

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While he wanted to filter out the water and continue the experiment, he found that instead of getting hydroxyapatite powder on the filter paper, a film formed on the paper.

当他想过滤掉水继续试验的时候，他发现留在过滤纸上的不是羟基磷灰石粉末，而是形成了一张薄膜。

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Therefore, the three pass filter of the filter is the need for regular cleaning of the filter, especially in the field of vehicles often carried water, but should increase the frequency of cleaning.

因此，洒水车的三通滤网的滤芯是需要定期进行清洗的，特别是经常在野外进行取水的车辆，更应加大清理频率。

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These holes let water slowly pass through the walls of the filter.

VOA: special.2009.06.22

Tests have shown that the filter produces safe drinking water.

VOA: special.2009.06.22

The water filter costs little to make.

VOA: special.2009.06.22

The microscopic whiskers can stop bacteria in a face mask or filter out water droplets in a hospital's air conditioner.

FORBES: Back on Track

We often take these services for granted, such as the ability of the forest to filter water or produce oxygen.

UNESCO: Social and Human Sciences

Beyond that, it was fascinating to see seeing what Detroit automakers are doing to reduce their carbon footprints, like using green roofs that insulate their buildings, porous pavement to filter rain water and even solar panels to help power their facilities.

FORBES: An Eye-Opening Trip To The Motor City