Is MERV 13 Bad For HVAC?

Should I use MERV 8 or 11?

MERV 5–8 (good): These filters are better at catching small particles (3–10 microns) like mold spores, hair spray, dust mites and animal dander.

MERV 9–12 (better): The best option for residential use..

How often should you change a MERV 11 filter?

The MERV rating also determines generally how often to change your furnace filter. MERV 8 filters should be changed every 3-4 months, MERV 10 & 11 filters every 6 months and MERV 16 filters every year.

How long does a MERV 13 filter last?

Our MERV 13 pleated filters are designed to last two to three months depending on conditions.

Is MERV 16 a HEPA?

What is MERV rating? Acronym or Minimum Efficiency Reporting Value, MERV filters are rated based on how small airborne particles can be removed. The rating scale range from 1 to 16, above 16 would be categorized as a True HEPA filter.

Are MERV 13 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. For example, let’s say you have a pleated filter that’s 1-inch thick and has a 13 MERV rating. … You just need the right kind of high MERV filter.

What does MERV 13 mean?

Minimum Efficiency Reporting ValueMERV stands for Minimum Efficiency Reporting Value. … For example, to achieve MERV-13, a filter has to catch 90% of particles in the 3-10 µm range, 90% of particles in the 1-3 µm range (where PM2. 5 is), and 50% of particles in the range 0.3-1 µm range (the really, really small stuff).

Can my furnace handle a MERV 13 filter?

While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow….Learn how to maintain your. home and HVAC this fall.MERVMinimum Particle Size9–123.0–1.0 μm13–161.0–0.3 μm17–20< 0.3 μm2 more rows•Sep 20, 2019

Which is better MERV 11 or MERV 13?

MERV ratings will range from 1 (low efficiency; minimum filtration) to 20 (highest efficiency; highest filtration). For most household uses, the highest MERV rating used will be MERV 13 filters. … For your home however, the better option is the FiltersFast MERV 11 air filters.

Is a 2 inch filter better than a 1 inch?

With the 2 inch pleated filter, even though it is smaller, we have a static pressure of 0.158” WC. As you can see the 2 inch filter will serve our needs MUCH better than the 1 inch filter. Even if the duct system is in good shape, using this filter will keep the system from struggling.

What MERV rating should I get?

A basic MERV 4 filter will likely be the cheapest but won’t catch certain small particles (like dust mites and pet dander) that could be in your home. If your family has health or allergy issues, then you may want to look for a high-efficiency filter that’s MERV 11 or higher.

Which MERV rating should I buy?

In general, air filters with higher MERV ratings remove a higher percentage of airborne contaminants, therefore improving your home’s indoor air quality. … 9-12 MERV – These filters are more efficient and usually offer the best indoor air quality improvement for residential applications.

What MERV rating is a HEPA filter?

17-20 MERVHEPA stands for High Efficiency Particulate Air filters and they are super-efficient. They will range from 17-20 MERV. HEPA filters meet standards that remove at least 99.97% of airborne particles down to the size of 0.3 microns.

Does MERV 13 restrict air flow?

For example, let’s say you have a pleated filter that’s 1-inch thick and has a 13 MERV rating. Because the filter is thin and the MERV is high, it reduces airflow into the duct system.

How often should you change a MERV 13 filter?

every 3 monthsFor Merv 8, 11 and 13 filters, we recommend that you change your filter at least every 3 months, however changing your filter every 2 months provides better filtration which provides healthier and cleaner air in your home.

Is MERV 8 too restrictive?

Technology for HVAC units has progressed since and most modern units of the last few years should be capable of a MERV 8 filter at the least. But older units may not be capable of enough air pressure to force air through a higher efficiency filter.

Is MERV 13 too high?

MERV is a good way to help judge the effectiveness of an air filter. … In some cases, using an air filter that is too restrictive for your system may cause low air flow problems as well. MERV 13 is the highest MERV value safe for residential furnaces; the higher ratings are used primarily in commercial units.

Can my HVAC handle MERV 13?

Wrong. While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow….Learn how to maintain your. home and HVAC this fall.MERVMinimum Particle Size9–123.0–1.0 μm13–161.0–0.3 μm17–20< 0.3 μm2 more rows•Sep 20, 2019

Does MERV 11 restrict airflow?

A decade ago, it used to be that if you had an HVAC system that used panel filters rated 6 through 9 MERV, putting in a MERV 11 or higher filter would restrict airflow (known as filter pressure drop). In turn, this would lengthen the system’s run-time, adding to your heating and cooling costs.