Understanding Merv Ratings and How to Choose the Right Air Filter

When it comes to air filters, there is a lot of confusion about what type of filter to choose and what the different ratings mean. The most common rating system is the Minimum Efficiency Reporting Value (MERV) rating, which is used to measure the effectiveness of air filters in removing particles from the air. In this article, we'll discuss what MERV ratings are, how they are used, and how to choose the right air filter for your home or business.

What is a MERV Rating?

The MERV rating is a measure of an air filter's ability to remove particles from the air. It is based on a scale from 1 to 16, with 1 being the least effective and 16 being the most effective.

The higher the MERV rating, the more efficient the filter is at removing particles from the air. The most common types of air filters are Merv 6, Merv 8, and Merv 11.Merv 6 filters are typically used in residential homes, while Merv 8 and Merv 11 filters are used in commercial buildings.

How Do MERV Ratings Work?

The MERV rating system measures an air filter's ability to remove particles from the air by testing it against a standard set of particles. The particles range in size from 0.3 microns to 10 microns. For example, a Merv 6 filter will remove particles as small as 3 microns, while a Merv 11 filter will remove particles as small as 1 micron.

What Are The Benefits Of Using A High-MERV Rated Filter?

Using a high-MERV rated filter can provide many benefits for your home or business.

Higher-MERV rated filters are more effective at removing pollutants and allergens from the air, which can help improve indoor air quality. They can also help reduce energy costs by improving HVAC system performance and reducing maintenance requirements. Additionally, high-MERV rated filters can help reduce emissions from vehicles by improving fuel economy and engine power.

How To Choose The Right Air Filter For Your Home Or Business

When choosing an air filter for your home or business, it's important to consider several factors. First, you'll need to determine what type of filter you need based on your HVAC system and what type of pollutants you want to remove from the air.

You'll also need to consider your budget and how often you plan on changing or replacing your filter. Finally, you'll need to consider the MERV rating of the filter you're considering and make sure it meets your needs.


Choosing the right air filter for your home or business can be a daunting task. However, understanding MERV ratings and how they work can help you make an informed decision about which type of filter is best for your needs. By taking into account factors such as your HVAC system, budget, and desired level of filtration, you can ensure that you choose an air filter that will provide optimal performance and improve indoor air quality.

Hannah Sawatzki
Hannah Sawatzki

Hipster-friendly pop culture maven. Hipster-friendly web practitioner. Infuriatingly humble bacon nerd. General social media fan. Hipster-friendly beer enthusiast.