What MERV Rating Should I Use In My House?

How often should you change Merv 8 filters?

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..

Can my furnace handle MERV 11?

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. To be safe, you should check if your furnace manufacturer has a maximum MERV rating your model of furnace can use.

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 MERV rating should I use in my home?

about 5 to 8Using 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.

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 MERV 13 too high?

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.

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.

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.

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.

Are MERV 13 filters bad for HVAC?

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. For example, let’s say you have a pleated filter that’s 1-inch thick and has a 13 MERV rating. … And like we said before: low airflow = wasting energy.

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).

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…•

How long does a MERV 8 filter last?

three to six monthsAnother factor driving the popularity of MERV 8 filters is that they are inexpensive and easily serviced. Depending on the manufacturer they can last three to six months and even up to a year in residential use.

Is MERV 13 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.

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…•