Will MERV 11 hurt my furnace?

The short answer is that it can, but it's not really an issue except under extreme circumstances. Most modern HVAC systems have no problem working with higher MERV filters, which is why millions of homeowners depend on them.

Does MERV 11 restrict airflow?

Be aware, too, that some retailers also use their own rating system instead of MERV. 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).

Can I use MERV 11 in my furnace?

Increased usage can lead to more wear and tear, so make sure to regularly maintain your furnace. MERV 11 filters however, are not considered to be too high for residential use.


How high MERV Can my furnace handle?

The EPA recommends MERV ratings of 9-12 because it is the most effective at keeping your home's air clean. A filter with this rating will prevent particulates as small as 1 micron from entering your HVAC system. This rating qualifies as HEPA (high-efficiency particulate absorption) level.

Is MERV 11 good enough for Covid?

What kind of filter should I use in my home HVAC system to help protect my family from COVID-19? Minimum Efficiency Reporting Values, or MERV, reports a filter's ability to capture particles. Filters with MERV-13 or higher ratings can trap smaller particles, including viruses.


Replacing Your Air Filter - Which One to Choose?



What does MERV 11 filter out?

MERV 11 is effective at controlling dust, pollen, dust mites, and pet dander. Applicable in most commercial buildings, residences, industrial workplaces, and paint booths.

Can furnace filters stop Covid?

Portable air cleaners and HVAC filters can reduce indoor air pollutants, including viruses, that are airborne. By themselves, portable air cleaners and HVAC filters are not enough to protect people from the virus that causes COVID-19.

Is MERV 11 better than 12?

MERV rating 9-12

Filters in this range can trap more than 85% of the particles sized 3.0-10.0 microns. A MERV 9 will trap less than 50% of particles sized 1.0-3.0 microns, MERV 10 will stop up to 64%, MERV 11 will get up to 79%, and MERV 12 is capable of catching up to 89%.

Is MERV 11 or 13 better?

MERV 11 furnace filters have a particle arrestance of a little over 90%. In comparison, MERV 13 HVAC filters have a particle arrestance of around 98%. Naturally, it is significantly more efficient. MERV 11 rated air filters are ideal for those who live in a moderately polluted area, have mild allergies, or own a pet.


How often do you change a MERV 11 filter?

The basic recommendation for furnace filters replacement is every 3-4 months for MERV 8, every 6 months MERV 10 and 11 and every year for MERV 16. There are other several factors to consider when determining when to change your home air filter.

What MERV filter does carrier recommend?

Selecting a good quality filter with 12 – 16 MERV to remove a high percentage of offending particulates. Be sure to check your filter at a minimum of once per month.

What MERV rating should I use in my house?

In general, the best MERV rating for a home is somewhere between 8-10. These filters will capture a large portion of the airborne particles and improve indoor air quality without making your energy costs rise significantly.

What MERV rating does YORK recommend?

Our premium aftermarket York replacement furnace filters are available in Minimum Efficiency Reporting Value (MERV) 8-15. The higher the MERV rating, the better the filters perform in trapping smaller particles. York furnace filters are durable, and are made with double wall construction that's guaranteed to last.


Is MERV 11 good enough?

In most cases, a MERV 11 air filter isn't too high for residential use. Generally speaking, anything under a MERV 13 air filter should provide very efficient air purification in a home without impacting airflow.

Can high MERV filter damage my furnace?

If the MERV rating on your furnace is too high, it may force your furnace to work too hard and leave it vulnerable to damages.

Do higher MERV filters restrict air flow?

Does a higher MERV rating affect airflow? Generally, a filter with a higher MERV rating will reduce airflow. However, there are many other factors at play such as the size of the filter and the type of blower motor in your HVAC system.

What MERV rating does Rheem recommend?

What MERV rating does Rheem recommend? Rheem recommends filters of MERV 8 and above. This MERV level is strong enough to remove substances like pollen, dust mites, dust and pet dander from the air.


Why are the highest rated MERV filters not used in residential applications?

Why are the highest rated MERV filters not used in residential applications? Most residential air conditioning equipment can not operate correctly at pressure drops exceeding .

What MERV rating does Goodman recommend?

With Minimum Efficiency Reporting Value (MERV) ratings of 11 or better, Goodman furnace filters are built to keep the air quality of your home at optimum levels. Goodman filters will trap air particles like pet dander, dust, dust mite debris, smoke, auto emissions, pollen and mold spores.

Can I replace Merv 11 with MERV 12?

In general no. In order to use a Merv 12 to replace a Merv 11, you need to know if you system can handle the extra pressure drop caused by the higher efficiency Merv 12.

What MERV rating does Lennox recommend?

We advise buying no less than a MERV 13 if the system allows for it.


Should I use MERV 12?

If you are susceptible to allergies, asthma, or other respiratory conditions, then you may want to use a filter with a MERV rating of about 10 to 12. These types of filters are sufficient to trap particles as small as 1 micron such as automobile exhaust, pollen, and mold spores.

How often should MERV 13 filters be changed?

For 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 most households, a MERV 11 filter provides enough purification to keep the home healthy. However, if someone in your home suffers from allergies, you probably want to go with a MERV 13. This can be pet allergies, pollen allergies, or even allergies to mold and dust.

What is the difference between HEPA and MERV?

HEPA Filters: High Efficiency Particulate Air

High Efficiency Particulate Air or HEPA have an even higher performance than MERV 16. While a MERV 16 filter captures >95% of particles in the entire test range (0.3-10.0 microns), a HEPA filter captures 99.97% of particles with a size of 0.3 microns.
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