Studies have shown that 70% of the total cost of ownership (TCO) of an air filter are accounted for by the power consumption of the fan. The power consumption of the fan is directly proportional to the average pressure difference at the air filter.
A frequently held misconception is that the filter efficiency has the greatest impact on the pressure difference of an air filter, and hence on the electricity bill, but in reality the design of an air filter has a far greater impact.
The TCO of an air filter can be broken down as follows:
- Unit price of a filter: 15%
- Cleaning: 8%
- Labour: 5%
- Waste: 2%
- Energy: 70%