How to Understand Filter Ratings for a Heating and Cooling in Lakeland, FL System

by | Jul 26, 2016 | Heating and Air Conditioning


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Selecting the right filter for a home’s heating and cooling in Lakeland, FL system can be a difficult task if a homeowner doesn’t understand various filter ratings and acronyms. There are a number of terms that are used to let a person know what the filter can and cannot do. With the information here, anyone will be able to find a filter option that works well for their home.

MERV -; Determines the Efficiency of a Filter

Air filters for a heating and cooling in Lakeland, FL system are rated by the MERV or minimum efficiency reporting value. This is a numerical rating that starts at one and goes to 20. It measures the filters ability to capture particles within a specific size range. The higher the number is, the better the filter performs.

HEPA -; What this Means

Another term that is heard frequently when selecting air filters is HEPA. This is an acronym that stands for high-efficiency particulate arrestance. These types of filters top the MERV scale with a rating that ranges from 17 to 20. They can capture up to 99.97 percent of all particles in a home that are as small as 0.3 microns.

Selecting the Proper Filter

If a homeowner is unsure about the filter they should use, it is a good idea to follow the guidelines from the manufacturer regarding the MERV rating range for the particular system or ask the HVAC technician. Here are how some of the various types of filters rate.

• Flat fiberglass: Feature MERV ratings of one to four. These are only able to trap approximately 80 percent of particles that are 10 microns or bigger.

• Pleated: Have MERV ratings of five to 13. The higher rated versions can better improve air quality because they can trap as much as 95 percent of particles 3.0 microns in size.

• Higher efficiency: These are filters with MERV ratings of 14 to 16.

When it comes to keeping your heating and cooling system working properly, it is essential to get to know the types of filters that are available. If a person would like more information, they can visit the website. Being informed is the best way to ensure a home has good air quality.

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