这使得过滤器具有最高的灰尘负载宽容，防止灰尘累积的空气通道阻断泡沫。
This allows the filter to have the highest dust load up tolerance, preventing accumulated dust from blocking the air passageway of the foam.
它不仅提供良好的过滤效率，具有良好的灰尘负载宽容使优越的空气流动效率。
Not only does it provide good filtering efficiency, it has a good dust load up tolerance which enables superior air flow efficiency.
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