Air Filtration for Office Buildings
Office buildings should run a MERV 8 pre-filter plus a MERV 13 final filter as a baseline for healthy indoor air. The priority is balancing occupant air quality against fan energy cost — use high-capacity, low-resistance media and change filters based on measured pressure drop.
Filtration priorities for offices
- Occupant health: MERV 13 captures respiratory aerosols, smoke, and allergens.
- Energy cost: Fan energy is the largest filter-related operating cost — favour low-pressure-drop media.
- Coil protection: A pre-filter keeps cooling coils clean and efficient.
- Odour control: Add carbon stages near loading docks, kitchens, or parking intake.
Indoor air quality and productivity
Multiple studies link better ventilation and filtration to fewer sick days and improved cognitive performance. Upgrading to MERV 13 and verifying adequate fresh-air delivery is one of the highest-return investments a facility manager can make in occupant wellbeing.
Frequently Asked Questions
Does upgrading office filters increase energy costs?
It can, because higher-efficiency filters add airflow resistance. The increase is minimized by using deep, high-capacity, low-pressure-drop media and by changing filters on measured pressure drop rather than leaving loaded filters in place.
What is the best filter for an office building?
A MERV 8 pleated pre-filter combined with a MERV 13 pocket or rigid cell final filter suits most offices, with carbon stages added where odours or vehicle exhaust are a concern.
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Need help choosing the right filter?
Talk to our Canadian air filtration team. Call 1-888-973-3635 or request a quote.