Features: small volume, light, easy to use, broad filtering area, low block rate, high filtering speed, no pollution, good heat stability and chemical stability.
其特点是体积小、重量轻、使用方便、过滤面积大、堵塞率低、过滤速度快、无污染、热稳定性及化学稳定性好。
In some small place, such as the dashboard and steering wheel, these places are very easy to adhesion of dust, light with a vacuum cleaner is of no use.
在一些细小的地方，如仪表台和方向盘这些地方都非常容易粘附灰尘，光用吸尘器是没有用的。
Light weight: per square metre weighs only about 1.4 kilograms, reducing load building, the use of safe, easy to transport.
重量轻：每平方米仅重1.4公斤左右，减轻大楼负荷，使用安全，运输方便。
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