/, Contextual, Cooling, Heating, HVAC, Offices, Operators, Physical environmental, Psychological, Short term/1.2.2 Upgrade and maintain the filters of the HVAC system

1.2.2 Upgrade and maintain the filters of the HVAC system

1.2.2 Upgrade and maintain the filters of the HVAC system



Air filters are used to reduce the amount of dust that reaches the wet coils, keeping the HVAC system clean. Dust can make mold to grow on the wet coils and ducts and can reduce the efficiency of the coils. Clogged filters reduce the air flow and can cause uneven air flow as well as higher energy bills. By choosing the right air filter and replacing it at regular maintenance intervals, the HVAC system motor will have less resistance to deliver the air to the ventilation system.


  • The energy consumption reduction potential is considered low to medium. With this measure, a reduction in ventilation losses of over 50% can be obtained on a building in which the ventilation is turned on all day

  • Provide better air quality for the building occupants (especially against some type of allergy)


  • Reduce HVAC operating costs


  • Operation and Maintenance (O&M) staff size, skill level, and budget need to be considered

Economic assessment

The cost is low or even zero, since most of the actions are for the improvement of the maintenance of HVAC systems, although it will depend in each case on the type and age of the HVAC system.


References and best practices

  • Indoor air quality guide – Best practices for design, construction, and commissioning: “LINK

Image gallery


Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices

Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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