Internal Air Quality

For Healthier, More Productive, & More Efficient Buildings

A building’s indoor air quality (IAQ) significantly impacts the productivity, health, and comfort of its occupants. Usually, steps made to improve environmental quality also helps to boost a building’s return on investment by promoting energy efficiency and increasing the longevity of critical assets like HVAC systems.

Improving Efficiency
and Lowering Costs
Poor IAQ doesn’t only affect occupants however. Airborne pathogens can also buildup in HVAC systems and are frequently responsible for mechanical issues, including significant decreases in cooling capacity and reductions in efficiency.

According to the National Air Filtration Association, filters below MERV 15 have a minimal ability to trap virus microbes. The filters that are located upstream of your coils typically do not have more than a MERV 13 rating, and the performance of even the highest rated filter will deteriorate over time.

However, increasing the MERV rating too much-without also increasing filter surface area-will require a fan speed adjustment and additional energy or the system will suffer a decrease in airflow. Furthermore, most commercial equipment will also run into practical limitations and even excessive filter loading. Increasing filtration while decreasing airflow and circulation, may not have any positive impact on IAQ or occupant health.

This is why we always recommend consulting a professional HVAC representative, who can assess your system’s performance capabilities and building needs, before making major filtration upgrades. If you believe higher filter efficiency is warranted, most systems can upgrade to MERV-11 without changing fan-speed. However, professional consultation is almost always needed when considering an upgrade to MERV-13 or higher or if you have larger equipment, like built-up air handling units (AHUs).

P.O. Box 817, Allen Park, MI 48101



313 382-0202

Open Hours:

Mon-Sat: 7am - 3pm