Quick Answer: Is MERV 11 Too Restrictive?

Is MERV 13 bad for HVAC?

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 Size13–161.0–0.3 μm17–20< 0.3 μm3 more rows•Sep 20, 2019.

How do I know what MERV filter to use?

MERV ratings range from 1 to 20, with lower ratings denoting a lower-quality filter.MERV 1-4 Filters: Filters with a MERV rating of 1 to 4 do little to trap harmful particles in your home’s air. … MERV 5-8 Filters: MERV ratings of 5 to 8 indicate a medium-quality filter that’s sufficient for most homes.More items…•

What MERV rating can my furnace handle?

The ideal MERV filters for both air filtering and furnace efficiency are 7-13, experts say. These filters can be used without any modifications to your equipment. Your system may handle MERV 14-16 with no discernable stress. However, many residential systems require modifications to pull air through these filters.

Will MERV 11 hurt my furnace?

MERV filters 1-4 are only good for blocking large particles from damaging your furnace. … Higher rated filters allow less air to flow through though and can force your furnace to work harder and possibly malfunction. A MERV rating between eight and 11 is adequate for most homes.

Is MERV 7 good enough?

For most residential systems, experts suggest using an air filter with a MERV value between 7 and 12. These filters offer adequate filtration and remove common contaminants such as pollen, mold spores, dust, pet dander, and tobacco smoke.

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).

Is a MERV 13 filter 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.

What does MERV 11 mean?

MERV ratings will range from 1 (low efficiency; minimum filtration) to 20 (highest efficiency; highest filtration). … “The MERV 11 air filters remove a higher percentage of contaminants in the air that will increase indoor air quality and maintain the efficiency of the HVAC unit.

Is MERV 11 bad for HVAC?

Most modern HVAC systems have no problem working with higher MERV filters. If your home has a very old HVAC system, or you use a higher MERV filter and never change it, you could run into airflow problems, but under normal circumstances, you won’t be stressing out your HVAC system that much with a higher MERV filter.

What MERV rating should I get?

As a general rule, residences do not use higher than MERV 8 filters. We do recommend that everyone uses filters that have at least an 8 MERV rating. These filters will remove the majority of pollutants from your indoor air.

How often should you change a MERV 11 filter?

every 30 daysThe filter you choose determines how often you need to change it. We recommend that most homeowners buy a mid-level MERV 10 or 11 filter and change that filter every 30 days — for better air quality and energy bill savings.

Is MERV 11 good?

A MERV 11 filter would make their lives a lot more comfortable because it can pick up even smaller particles than a MERV 8 filter. If members of your family have those health concerns, we recommend a MERV 11 air filter—especially in the spring and summer seasons.

What MERV rating is filtrete 1500?

3M Filtrete 1″ Air Filters Comparison Chart:Basic DustUltra AllergenAvailable in:9 sizes30 sizes* MPR Rating:3001500MERV Rating:512** Efficiency:34%90%5 more rows

What is the best air filter for your home?

So here is my list of The 10 Best Furnace Filters.AIRx Health 1″ MERV 13 Furnace Filters. … Honeywell FC100A1037 Ultra Efficiency 4″ Furnace Filters. … Nordic Pure 4″ Furnace Filters. … FilterBuy 1″ Furnace Filters. … AIRx ALLERGY 1″ Furnace Filters. … Filtrete Micro Allergen 4″ Furnace Filters. … X6673 Lennox 4″ Furnace Filters. … Filtrete Clean Living 1″ Furnace Filters.More items…•

What does MERV 11 filter out?

Use MERV 11 filters to eliminate contaminants such as humidifier and lead dust, automobile emissions, welding fumes, legionella, milled flour, and nebulizer drops in addition to larger particles like pollen, mold, pet dander, dust and dust mites, carpet and textile fibers, insect debris, sanding and spray paint dust, …

Is MERV 12 a HEPA?

HEPA 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.