Is MERV 12 good enough?
The higher the MERV rating, the more efficient the air filter is at catching harmful pollutants in your home’s air. … 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 12 too high?
9-12 MERV – These filters are more efficient and usually offer the best indoor air quality improvement for residential applications. Deep pleated filters fall into this category. Because they work so well at removing airborne pollutants, they must be regularly checked to ensure proper airflow.
How long do MERV filters last?
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.
How often should MERV 13 air 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.
How often should you change a MERV 12 filter?
Your furnace’s owner’s manual will specify the best MERV rating for your furnace, and in general, filters with a MERV rating of 6 through 9 should be changed every 90 days, while those with a MERV rating of 10 through 12 should be changed every 60 days.
What does MERV 12 filter?
MERV 12 filters trap 80 to 89 percent of average particles of 1.0 to 3.0 microns, with an average particle size efficiency of 90 percent or better.
Is MERV 12 bad?
High MERV filters, specifically MERV 12 to MERV 16 filters, stop more and smaller particles of pollutants, allergens and other junk that leads to bad indoor air quality (IAQ). That’s a fact. The terms “more” and “smaller” are both important when discussing healthy IAQ in your home.
Can I use MERV 12 in my house?
A filter with a MERV rating of around 10 to 12 is sufficient to remove most allergy-causing particles from your home’s air. Most air filters that are able to remove common allergens will have the word “allergy” or “allergen” on their packaging.
Will MERV 11 stop viruses?
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.
Is MERV 13 too restrictive?
“MERV” is the standard rating system used in the HVAC industry to determine how well a filter works. … And MERV 13 is the highest rating recommended for home use. (Anything above it will restrict airflow too much and could damage your HVAC system).
Do MERV 13 filters reduce 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. … To make matters worse, this type of filter will reduce airflow even further once it gets dirty, which it will do very quickly.