Question: Does MERV Rating Affect Airflow?

Is MERV 16 a HEPA?

To be rated as HEPA quality, filters must meet specifications set by the U.S.

Department of Energy and must be capable of filtering at least 99.97 percent of particles sized 0.3 µm and larger, and Table 1 shows a considerable jump in filtration efficiency for 0.3-µm particles and larger from ≥95 percent for MERV 16 ….

What MERV rating should I get for home?

8As 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.

What is the lowest MERV rating?

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.

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.

What MERV rating does Trane recommend?

MERV-13ASHRAE recommends upgrading air filters to MERV-13, or higher if possible.

What is the best air filter for your home?

See our full list of Air Filter RatingsAprilaire. Allergy & Asthma 216.Aprilaire. Healthy Home 213 MERV 13.Aerostar. MERV 13.FilterBuy. MERV 11/Gold.Airx Filters. Health 202001-6 MERV 13.Accumulair. Diamond Filters – APR 1950.Rheem. Dust & Pollen FPR 4.3M Filtrete. 1085D MPR Micro Allergen Extra.More items…•

Does higher MERV rating restrict airflow?

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. … Because the filter is thin and the MERV is high, it reduces airflow into the duct system.

Is MERV 13 too high?

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.

Does Merv 8 restrict airflow?

Because they restrict airflow to your HVAC system. Pleated, high-MERV filters definitely capture a lot of pollutants, but they also restrict the movement of air into your blower or furnace. … We recommend avoiding the high-MERV 1″ filters (above MERV 8 is pretty restrictive).

How often should Merv 8 filters be changed?

every 3-4 monthsThe 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.

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

Is MERV 11 or 13 better?

For most household uses, the highest MERV rating used will be MERV 13 filters. … “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 too restrictive?

Disposable pleated high MERV filters (11 to 13 MERV): High-efficiency filters can trap 0.3 micron particles like bacteria and some viruses. … HEPA filters drastically restrict airflow and should only be matched to a compatible system.

Is MERV 8 too restrictive?

If your unit is older and/or very sensitive with airflow, use a filter that ranks from MERV 1 up to possibly MERV 6. If you want your air to at least be cleaned and handle dust, mold, pollen, and bacteria, then a MERV 8 will do the job.

What MERV rating is filtrete 1900?

12The Filtrete Healthy Living 1900 filter has an MPR (microparticle performance rating) of 1900, MERV rating of 12, and an efficiency level of 93%.

What is a good MERV rating?

Using an air filter with a MERV rating of about 5 to 8 is appropriate for most residential homes. MERV 5 – MERV 8 filters provide good filtration and will remove most pollen, mold spores, and dust mites. … Generally, pleated filters have a higher MERV rating, while non-pleated filters have a lower one.

Is MERV 8 good enough?

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. … Particles this small include bacteria, tobacco smoke and even the contaminants in sneezes.

Is a 2 inch filter better than a 1 inch?

When it comes to a 1 inch vs 2 inch furnace filter you could use a 2 inch filter if your vent is deep enough and a 2 inch filter will generally last longer since it has more media.