Global leader in clean air
solution for years

Global leader in clean air solution for years
Case Study

Commercial Tower Increases Operating Performance

Customer Profile

Private Real Estate Management Firm

  • Owns office, commercial and industrial buildings in Montreal, Quebec City and Toronto
  • Real estate portfolio encompasses 8.3 million square feet

Commercial Office Tower

  • Located in Montreal, Quebec
  • 45-floor skyscraper
  • Average floor area is 13,500 square feet
  • Includes underground parking

Air Filtration Sustainability in commercial tower

The real estate management firm overseeing this office tower had to change out both the tower’s pre-filters and final filters on a frequent basis. Since approximately 50% of a building’s energy consumption goes to the heating, cooling, and moving of air, this high changeout frequency, as well as filter inefficiency, added up to a high Total Cost of Ownership (TCO).

BOMA Best Certified

In addition, the facilities managers of the office tower are committed to maintain high environmental standards. The building was awarded BOMA GoGreen, Level 2 certification, the Canadian industry standard for commercial building sustainability certification. Green building practice is achieved by efficiently using energy, water, and other resources, while reducing impact on human health and the environment. Thus, the real estate management firm wanted to increase the building’s filter efficiency so that the Indoor Air Quality (IAQ) was both optimised and as green as possible. Decreasing filter changeout would also reduce waste for the facility.

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Challenges 1 – High filter changeout frequency

Challenges 2 – Filter inefficiency

Challenges 3 – High Total Cost of Ownership (TCO)

The firm’s AAF Flanders representative performed an air filtration audit throughout the office tower and then presented a 2-year filter proposition. This proposition compared pricing, including labour costs, and rate of filter changeout for both the current filters being used and the recommended filters.

The proposed filters included MEGApleat® M8 as a prefilter and VariCel® 2+HC MERV 14 as a final filter. The MEGApleat M8 filter was recommended because it loads at a slower rate, increasing the life of the filter. Lower pressure drop and higher dust holding capacity (DHC) translate to reductions in energy consumption and operating costs. The VariCel 2+HC filter was recommended because of its low initial resistance, ideal pleat spacing, and higher-than-average media density, which allows for maximised particle management and full media utilisation.

The MEGApleat M8 filter construction process results in a filter which is very stable, with no racking or vibration of the pleats under normal airflow. Pleat stability minimises the chances of captured particulate shaking loose and re-entering the airstream. The VariCel 2+HC filter’s high DHC equates to a longer service life, which reduces the number of filter changeouts. In addition, the thinner depth of the VariCel 2+HC makes disposal easy. These filters are only one-third the volume of other high-efficiency filters, significantly reducing the contribution to landfills. With no metal components, they are also suitable for incineration.

Recommended Product & Solution

Commercial Buildings

In commercial office buildings, Indoor Air Quality (IAQ) is a primary concern. The pollution levels in this indoor air can be up to five times higher than outdoor levels, and poor IAQ ranks as one of the top five environmental risks to public health.


VariCel® 2+ HC (High Capacity)

The VariCel 2+ HC filter is the logical upgrade from standard 95 mm pleated filters, when higher efficiency and longer life are required.


Air Filtration Audit

A thorough air filter audit of your HVAC systems is the first step that AAF International takes in order to provide you with professional guidance and analysis for cost savings and risk reduction. By conducting this audit, we will be able to understand exactly how you compare to the best practices of companies that are similar to you.


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