Plasma recirculation technology

Whether with or without plasma technology, the following must always be observed with table fan systems:

Since the extracted vapour is released back into the room in a cleaned state, it should be able to escape from the base area as unhindered as possible. Our finned base in the accessories range is designed for this purpose. The larger the area on the discharge side, the less disturbing draughts there are on the floor; the less pressure the fan has to build up on the discharge side, the more effectively it works on the intake side. Furthermore, moisture could form in the base area. It is therefore imperative to operate table fan systems with an overrun.

When using plasma technology, the question of electrical safety and the generation of ozone always arises. However, ozone generation with plasma is not an undesirable side effect, but an important part of the air purification process. It also prevents the formation of mould and thus the development of any unpleasant odours in the base area. This is an effect that pure activated carbon filters without plasma cannot achieve. It is true that the ozone level in the plinth under the kitchen furniture is significantly higher. This is explained by the very low air volume within this area. When air enters the kitchen through the plinth, the ozone is immediately diluted with the room air to such an extent that the ozone value suddenly falls far below the perception limit of 10 ppb (parts per billion = 0.01 ppm). A health hazard can therefore be absolutely ruled out. The same applies to the other plasma filters in wall, island and built-in bonnets. The limit values of 0.6 ppm set by the WHO in Geneva are clearly undercut.

With regard to electrical safety, the following can be noted: the plasma source and high-voltage transformer are located very far away from the intake opening, so that normally no water can enter the system. Our plasma source works with an operating voltage of 5.0 KV, but with a very low current and is protected against flashovers by a sensitive fine-wire fuse. However, as with all other electrical devices, correct installation by a trained specialist is a prerequisite for completely safe operation. Regular replacement of the activated carbon is also important for the effective functioning of the plasma filter. This should be replaced after approx. 5 - 7 years. However, the replacement intervals can vary greatly. They depend on the cooking habits and the correct operation with appropriate pre- and post-running of the fan. The ozone produced not only eliminates odours, but also promotes regeneration and thus the active carbon's mode of action. If you want a healthy room climate, energy efficiency and a great deal of design freedom when planning the kitchen, as well as appreciate long replacement intervals for the activated charcoal, you should opt for a recirculating air extractor with our plasma filter technology.