What is the Best MERV Rating for HVAC Systems?

When it comes to residential HVAC systems, the best rating is MERV 13. Learn more about MERV ratings and how they affect your home.

What is the Best MERV Rating for HVAC Systems?

When it comes to residential HVAC systems, the best rating is MERV 13 according to ASHRAE. However, it is important to make sure that your specific system can handle this classification before you upgrade your filter. A higher MERV rating usually means lower airflow, which can make the system work harder and use more energy. For oven filters, our recommendation is to choose a MERV rating between 6 and 8, as this provides a great balance between maximum oven efficiency and home comfort.

In most cases, a MERV 11 air filter should be suitable for residential use. Generally speaking, anything below a MERV 13 air filter should provide efficient air purification in a home without affecting airflow. On the other hand, air filters with a MERV 14 rating or higher are designed for commercial HVAC systems that can handle the coarsest filter material. MERV ratings 1 to 16 are considered HVAC system grade filters suitable for residential, commercial and general hospital HVAC systems.

Each air filter has its own advantages and disadvantages, but both MERV 8 air filters and MERV 11 air filters are suitable for residential use. A MERV 8 filter is not designed to trap the smallest particles that fall into category E1, such as pet dander. The higher the MERV rating, the better the filter will be at trapping specific types of particles. This comparison table helps to illustrate the differences between the MERV 8 and MERV 11 filters so that you can decide which one works best for you.

MERV ratings of 17 to 20 are typically used in industrial or scientific applications, such as surgical operating rooms, cleanrooms and other applications that require absolute cleanliness. You can use the table below to better understand how filters rated with FPR and MPR compare to the more standard MERV rating system. MERV 5 - MERV 8 filters provide good filtration and remove most pollen, mold spores and dust mites. We can advise you on what system and what MERV ratings you need to provide the best quality air for your family.

It is important to remember that a better MERV rating does not always mean that a filter is the best option for your oven.