Question: How Long Does A MERV 13 Filter Last?

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..

Are MERV 13 filters worth it?

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.

Is MERV 13 a HEPA?

A low ranking filter is rated 1-4 MERV, and medium filter falls into the 5-13 MERV range, and high-efficicency filter will range from 13 to 16 MERV. … 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.

What Merv filter should I get?

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.

Is MERV 8 good enough?

Well, everything from pollen and dust mites to bacteria and tobacco smoke. … 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.

Is MERV 13 too restrictive?

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. … ASHRAE recommends MERV 6 or higher.

How often should I change my 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.

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.

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 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.

Can I use a MERV 13 filter?

As specified by NAFA, to be labeled as MERV 13, a filter must successfully remove at least 90% of E3 particles, 85% of E2 particles, and 50% of E1 particles.

What does a MERV 13 filter?

MERV 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).

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.

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 MERV rating is best for home use?

Why We Recommend MERV Rating of 8 or Higher Protects your HVAC system from dust clogs and corrosive particles. Reduces dust in your home making for less housework. Improving indoor air quality, especially when you are spending a lot of time at home, is important for your health.

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.

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.

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.