What's the difference between Merv 8 and MERV 11?

A MERV 8 filter should pick up most animal dander, but if you have 2 or more pets you may need a MERV 11 to completely eliminate those harmful particles from your home's air.

In respect to this, 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). In turn, this would lengthen the system's run-time, adding to your heating and cooling costs.

Likewise, what is the difference between Merv 8 and MERV 10? Although it is true that 10 is a larger number than 8, and MERV-10 does capture more particles than MERV-8 captures the question that remains is HOW MUCH more does it capture.

Also to know, 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.

What MERV rating is best for home use?

Better residential filters (5-8 MERV rating) will filter common household allergens such as dust, pollen, mold, and pet dander, while superior residential filters (9-12 MERV rating) will help to remove such things as cigarette smoke, which are more difficult to filter because they contain smaller particles.

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 13–16 (best): These filters are usually only found in hospitals because they can capture particles as small as 1–0.03 microns in size.

Is MERV 11 too high?

MERV 11 to 13 are high-efficiency filters that come in a variety of configurations. These filters can remove particles as small as 0.3 microns and other debris like microorganisms and bacteria.

Is MERV 13 too restrictive?

MERV is a good way to help judge the effectiveness of an air filter. 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.

What is the best air filter for 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.

What MERV rating is HEPA?

17-20

What Merv is too high?

Higher MERV ratings (from 13 to 16) are needed to remove bacteria and smoke particles. At the top of the scale are HEPA filters with MERV ratings from 17 to 20, which can filter out particles smaller than 0.3 microns, including some viruses.

Do pleated air filters 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. These cover all the air filtration basics - dust and pollen removal, for example - without restricting airflow.

Are expensive air conditioning filters worth it?

More expensive filters like Pleated Residential filters filter out dust mites, pollen, mold and pet dander and even bacteria and so are worth the money especially for those with severe allergies. HEPA filters filter bacteria and viruses and are worth the extra money for those with respiratory conditions like emphysema.

How long do MERV 11 filters last?

6 months

Do I need a MERV 16 filter?

A MERV 16 filter is the most restrictive and will likely need to be changed every 3 to 6 months. Yes, they are more expensive than the average filter, but you get what you pay for. I change our MERV 13 filter every 4 months. We can get 6 months out of it, but we keep the fan “on” on our furnace.

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.

Do higher MERV filters restrict airflow?

Because high MERV filters are designed to catch large and small particles and therefore will get dirty quickly. And since the filter is thin, the filter will quickly fill up with particles and block airflow.

What MERV rating can my furnace handle?

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 type of furnace filter should I use?

Choosing the right furnace air filters for your furnaceMost residential filters range from 4 to 12. Furnace manufacturers prefer the traditional spun fiberglass ac filters (MERV 2). These filter out enough of the large particles to protect the furnace while providing maximum airflow.

What MERV 11 filter?

MERV 11: The Best-Fit Filter for Families and PetsCreate a cleaner, healthier environment for your family by capturing unwanted particles and allergens from your home's air. MERV 11 Air Filters Assist in the Removal Of: Dust & Lint. Dust Mites. Mold.

How do I know what MERV filter to use?

The MERV scale is a standard measure of the ability of a filter to remove particles from your home's air. 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.

Which way does furnace filter go in?

Remove the old air filter from your furnace. On your new air filter, find the arrow that indicates the proper air flow direction. This tends to confuse everyone more than anything else. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.