Quick Answer: Is MERV 8 Good Enough?

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..

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

Why is my house so dusty?

Dust accumulation in your home is a product of airflow, either because too much dirty, dust-filled air is floating around your home or because not enough air is spreading through the home, allowing dust to settle.

Is MERV 10 good enough?

A filter with a MERV rating of around 10 to 12 is sufficient to remove most allergy-causing particles from your home’s air.

Is MERV 11 too restrictive?

MERV 11 are approximately the same. A MERV 11 would be considered an “allergy” filter that does a good job of removing particles in all size ranges. … Most of the thicker filters are sold as a MERV 11 or higher, but they are also available in a MERV 7 or MERV 8.

Is MERV 13 bad for HVAC?

Wrong. While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow….Learn how to maintain your. home and HVAC this fall.MERVMinimum Particle Size13–161.0–0.3 μm17–20< 0.3 μm3 more rows•Sep 20, 2019

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…•

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.

Are Filtrete filters too restrictive?

Typically, any filter with a MERV rating higher than 12 (or equivalently MPR 1500 in the case of 3M Filtrete filters) is too restrictive for most residential air conditioning systems; they are typically designed for commercial HVAC systems.

How good is MERV 8?

Why MERV 8 Is So Popular MERV 5 to 8 – effective at controlling mold spores, hair spray, dust. … MERV 8 filters have 90 percent efficiency on particles that are 3 to 10 micrometers in size. MERV 1 to 4 – effective at controlling larger particles such as, sanding dust, spray paint dust, lint and carpet fibers.

What MERV rating should I use?

As 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.

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.

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 often do you change a MERV 11 filter?

every 30 daysThe filter you choose determines how often you need to change it. We recommend that most homeowners buy a mid-level MERV 10 or 11 filter and change that filter every 30 days — for better air quality and energy bill savings.

Does Merv 8 restrict airflow?

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 8 or 11 better?

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.

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.

Why is my furnace filter getting dirty so fast?

When your A/C is on the thermostat fan will constantly be running causing air too run over the air filter continuously and causing it to get dirty more quickly. … You may have a leak in your air ducts – Leaky air ducts can also cause your filter to clog up and especially if it is near your AC unit.