Which is Better for Your HVAC System: HEPA or MERV Filters?
Choosing the right air filter is important for many reasons. Using the wrong air filter can raise your energy bill, impact your indoor air quality, and even create the need for more repairs on your HVAC system over time. There are various factors to consider when purchasing filters. In this blog we discuss some of these considerations and explain the acronyms used to differentiate them.
What is MERV?
MERV is a scale used to rate a filter's ability to catch airborne particles. A higher MERV rating means a filter is better at trapping smaller particles.
What is a MERV filter?
A MERV filter is a filter with a MERV rating of 13 or higher. This filter removes at least 75% of dust, pollen, mold, bacteria, and airborne particles. Most high-quality AC systems are designed to run with a MERV level of at least eight.
What is a HEPA filter?
HEPA stands for "high-efficiency particulate air." HEPA filters have a MERV rating of 17 or higher. A HEPA filter removes at least 99.97% of dust, pollen, mold, bacteria, and airborne particles. They are also particularly good at removing airborne viruses.
Is a higher MERV rating always better?
This may surprise you, but no! A higher MERV filter requires you to frequently change your filter to ensure proper airflow and efficiency. Also, if mold or mildew is a major concern, a higher grade filter might not be the best fix. More often than not, manual cleaning and a dehumidifier are more beneficial. Additionally, many systems can't accommodate HEPA filters. If you aren't sure what kind of filter your HVAC system uses, contact us for more information.
Who is a MERV filter right for?
A MERV filter is suitable for most home and business owners. A MERV filter is the perfect balance of affordable, efficient, and effective.
Who is a HEPA filter right for?
A HEPA filter is an excellent choice for homeowners who have health issues. If you have someone in your home who needs an added layer of protection from pollutants, we recommend this option. HEPA filters could be a valuable investment for business owners if you run a highly populated building, are in the healthcare industry, or work with children or the elderly.
Have more questions regarding your HVAC system’s filter? Reach out to our trusted and certified team of HVAC professionals. Contact the trusted heating, cooling, and air quality experts at Total Temperature Control for more help.
Whether you need 24-7 emergency service or a solution to improve your indoor comfort—at home and work—call us at 781-224-2400 or submit a convenient contact form.
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