Hygiene in ventilation systems

HEPA Filter

• HEPA filters remove the finest particles, such as fine dust, pollen and mould spores, as well as aerosols containing bacteria and viruses, through mechanical filtration. They are essential for hospitals, cleanrooms and laboratories. The disadvantages include high pressure drop, higher energy consumption and the need for regular filter changes.

Activated carbon filter

• Activated carbon filters adsorb odours and gaseous pollutants (VOCs). They are ideal for kitchens, catering establishments or underground car parks. However, they do not filter out particles or micro-organisms. Once saturated, the filters must be replaced.

Cold plasma ionisation

• Cold plasma complements traditional filter technology. Depending on the system, odours, VOCs and certain bacteria, mould spores and viruses in the air can be reduced or inactivated. As no activated carbon is saturated and there is virtually no consumption of consumables, running costs are often significantly lower.

Maintenance costs: a crucial factor

• For businesses, it is not only the investment costs that are crucial, but, in particular, the life-cycle costs.
• HEPA Filter
  • high filter costs
  • regular changes
  • higher power consumption due to pressure loss
  • Disposal costs
• Activated carbon
  • periodic replacement of the activated carbon
  • Disposal of saturated filters
  Lower operating costs:
• Cold plasma
  • long service life of the modules
  • very few consumables
  • low pressure drop
  • low energy consumption
  • low maintenance costs

Particularly where large volumes of air are involved – in shopping centres, hotels, office buildings or sports facilities – the savings can be substantial over many years.