* Multi-Function

MF stands for Multi-Function. The MF/MK3 is a further development of the MF.

The MF is a natural ventilator which has been specially developed to fulfil several functions together:

  • day-to-day ventilation
  • automatic fire ventilation

The MF can be used both to provide ventilation in all weather cinditions and to extract smoke, heat and combustion gases in the event of a fire. In addition the MF can be used to:
  • provide additional day light

The MF is a product of the Colt Froup of Companies, operating world-wide with 47 establishments in 23 countries. This publication is a available in a large number of languages and id internatinally registered.

* is brand name of Colt International