Is MERV 8 Good Enough?

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..

What MERV rating should I use?

Using a 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, dust mites, and pet dander.

Can I run my AC without a filter?

Even though your air conditioning system will work without a filter, experts recommend against it because it can cause severe damage to your AC system and then you’ll need to pay for expensive repairs.

What type of air filter is best for HVAC?

The American Society of Heating, Refrigeration and Air Conditioner Engineers (ASHARE) recommends a MERV 6 or higher. Most people go with a MERV 8 filter. Most residential areas can remove contaminants with MERV 8 to 13, while most hospitals use MERV 14 to 20.

What kind of air filters are best?

Usually packaged as a HEPA “system,” these filters are the best of the best. VOCs, bacteria, viruses… HEPA filters capture nearly everything. Technically speaking, they trap particles as small as 0.3 microns in diameter, which is ridiculously small.

What does MERV 8 mean?

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. Applicable in residences and in window air conditioning units.

What does MERV 8 mean in air filters?

To be classified as a MERV 8 filter according to NAFA (National Air Filtration Association), a filter must filter out at least 70% of E3 (3.0-10.0 µm) particles and 20% of E2 (1.0-3.0 µm) particles. … This means that 81.5% of dust particles fed into the filter were successfully filtered out of the air.

What MERV rating can my furnace handle?

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 Size5–810.0–3.0 μm9–123.0–1.0 μm13–161.0–0.3 μm17–20< 0.3 μm1 more row•Sep 20, 2019

Why is my air filter 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.

Is MERV 6 good enough?

For residential use, a filter with a MERV of 6 or 8 is more than enough for most people. For those with allergies to dust and smaller pollen particles, choose a MERV of 8 or 10.

What does MERV 11 filter out?

Use MERV 11 filters to eliminate contaminants such as humidifier and lead dust, automobile emissions, welding fumes, legionella, milled flour, and nebulizer drops in addition to larger particles like pollen, mold, pet dander, dust and dust mites, carpet and textile fibers, insect debris, sanding and spray paint dust, …

Should I use MERV 8 or 11?

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.

How often should Merv 8 filters be changed?

3-4 monthsThe MERV rating also determines generally how often to change your furnace filter. MERV 8 filters should be changed every 3-4 months, MERV 10 & 11 filters every 6 months and MERV 16 filters every year.

What MERV rating is a HEPA filter?

Acronym for High-efficiency Particulate Air. A HEPA filter is ranked between 17-20 MERV; the highest group in MERV ratings. All HEPA filters are tested and certified to be at least 99.97% efficiency in removing particles as small as 0.3 microns.

Is MERV 13 too restrictive?

One factor to consider is air flow through the system. … 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 furnace filter to buy?

Best Overall: Honeywell Elite Allergen Pleated FPR 10 Replacement Air Filter. One of the hands-down best furnace filters you can buy is the Honeywell Elite Allergen Pleated Air Filter. This highly-rated filter has the highest FPR possible and comes in a wide range of sizes, fitting most all furnaces.