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MLL rotary fans

Our folding fans are self-regulating window fans that enable air circulation in your interiors and provide for a balanced air exchange and addition of fresh air, without having to open your windows. For the demand-controlled natural ventilation systems from MLL-HAMBURG, a wide range of self-regulating rotary fans is available for supplying fresh air. The selection ranges from self-regulating standard fans that are suitable for each type of window and all installation conditions. They are made to measure, and can be used for building construction and for various installation heights. Our rotary fans are especially used in remodeling projects, as larger openings have to be filled.

Optional accessories:

  • Self-regulating Valve
  • Filter element
  • Pollen filter

The stepless regulation is actuated via a lever, cable or connecting rod.

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