Inlay-Note for replacement filter mats FM1.../FM3... and rolled goods RW1...
The filter mats/rolled goods with the article no. FM1.../ FM3.../ RW1... are progressively structured, this means the fiber layers increase towards the clean-air side (become denser). The filter mat thus slowly pollutes in the depth. Coarse dust particles are absorbed in the front region of the filter mat, fine dust particles in the rear area (see also the following illustration).
The result: long service life and extended service intervals.
To insert the filter mat correctly:
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Inlay-Note for replacement filter mats FM2... and rolled goods RW2...
The filter mats/rolled goods with the article no. FM2.../ RW2... are economic polyester filter mats and only partly regenerable.
To insert the filter mat correctly:
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