Finally, trees have a great contribution in purifying air and make our environment be fresher.

最后，树木对于净化空气也做出了很大的贡献，使得我们的环境更清新。

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Analyzes the high temperature error happened randomly for Series AAHM-H purifying air-conditioning system in the clean operation room, and describes the process of the troubleshooting.

分析了洁净手术室aahm - H系列超卫型净化空调随机发生的“高温报警”故障，并介绍了该故障的维修过程。

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The wetland plays a crucial role in producing oxygen and purifying the air.

湿地在产生氧气和净化空气方面有至关重要的作用。

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Purifying indoor air could cut the cost of running fans and chillers by up to 30%.

FORBES: Companies & Strategies

In jet aircraft, purifying cabin air would save on fuel needed to compress fresh air bled from the engine to ventilate the cabin.

FORBES: Companies & Strategies

Chua told CNN that she and Tan had taken technology and processes commonly used in air conditioning and air purifying units and adapted it for an alternative use.

CNN: Ioning your way to cleaner clothes