Are high MERV filters bad for HVAC?

Are high MERV filters bad for HVAC?

Here’s the problem: Some filters with a high MERV rating can drop air pressure in your duct system, which can increase energy bills and damage your HVAC system.

Are MERV 13 filters worth it?

Filters within a MERV rating of 17-20 are almost never necessary in a residential home. A MERV rating of 13-16 is considered hospital level air quality, so it is unlikely your home needs any more than that.

Are MERV 12 filters good?

MERV 9–12 (better): The best option for residential use. These air filters can remove pollutants as small as 1–3 microns, which includes particles like humidifier dust, auto emissions and legionella.

What is the highest MERV rating for air filters?

Well, MERV ratings range from 1 to 20, with 1 being the lowest level of filtration, and 20 being the highest. Filters that are MERV 16 through 20 are usually only found in hospitals, cleanrooms, and nuclear power plants. The home air filters you’re looking for are rated anywhere between MERV 5 and 13.

Can I use a MERV 12 filter in my furnace?

The short answer is this: The best MERV rating for your heating and air conditioning equipment is the MERV recommended by the manufacturer. It’s usually in the range of 8-12 MERV. When in doubt, choose a MERV 8 to MERV 10 filter rated for high airflow, so it won’t damage your furnace or air handler.

Does MERV 13 filter out viruses?

Filters with MERV-13 or higher ratings can trap smaller particles, including viruses. Upgrading to a MERV-13 rated filter, or the highest-rated filter that your HVAC system fan and filter slot can accommodate, could improve the system’s efficacy in removing viruses from circulated air.

Is MERV 12 too high for HVAC?

9-12 MERV – These filters are more efficient and usually offer the best indoor air quality improvement for residential applications. Deep pleated filters fall into this category. Because they work so well at removing airborne pollutants, they must be regularly checked to ensure proper airflow.

Is MERV 11 too restrictive?

A MERV 11 air filter has a higher efficiency rating. Meaning, it can capture finer particles and clear more contaminants out of the air. In most cases, a MERV 11 air filter isn’t too high for residential use.