Are MERV 13 Filters Bad For HVAC?

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..

What’s a disadvantage of the highest MERV rated filters?

The main disadvantage to a high MERV filter is either high static pressure making the heating and cooling system inefficient or pleats so close together that the filter face loads and needs to be changed much more frequently. The more air that passes through your filter the better it will filter.

What MERV rating is a HEPA filter?

Acronym for High-efficiency Particulate Air. A HEPA filter is ranked between 17-20 MERV; the highest group in MERV ratings. All HEPA filters are tested and certified to be at least 99.97% efficiency in removing particles as small as 0.3 microns.

Which MERV rating should I buy?

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.

Should I use MERV 8 or 11?

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.

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). … The thicker the filter, the more surface area per pleat.

How often should you change a MERV 11 filter?

MERV 8 filters should be changed every 3-4 months, MERV 10 & 11 filters every 6 months and MERV 16 filters every year.

Is MERV 13 too high?

One factor to consider is air flow through the system. … 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 bad for HVAC?

Minimum Particle Size 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.

Should I use MERV 13 filters?

Air filters that are MERV 13 and higher are recommended for those that prioritize air quality and may have to handle asthma, severe allergies, and other similar circumstances. Try to not go beyond what you need for your situation.

Is MERV 13 better than MERV 11?

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.

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.