Are MERV 8 filters good?

The higher the MERV rating, the more efficient the air filter is at catching harmful pollutants in your home’s air. … 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.

Are MERV 8 filters good enough?

A MERV 8 air filter is efficient at trapping a majority of indoor particulates that could debilitate those with asthma and allergies, or even cause long-term respiratory problems.

Is a MERV 8 filter good for Covid?

Filters with MERV-13 or higher ratings can trap smaller particles, including viruses. Many home HVAC systems will have a MERV-8 filter installed as the default. … By itself, using an upgraded HVAC filter is not enough to protect people from COVID-19.

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.

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Is MERV 8 too high?

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.

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MERV Minimum Particle Size
5–8 10.0–3.0 μm
9–12 3.0–1.0 μm
13–16 1.0–0.3 μm
17–20 < 0.3 μm

Are Merv 8 filters washable?

Along with antimicrobial coating that is applied to prevent bacteria and mold growth. CONSTRUCTION : The Mech 8 is the highest rated mechanical washable filter available. … The filter is designed for applications such as furnaces, light industrial, commercial, schools, and office buildings.

How often should Merv 8 filters be changed?

The 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. There are other several factors to consider when determining when to change your home air filter.

What MERV level is HEPA?

All HEPA filters have a rating of a MERV 17 or higher. A HEPA filter with a MERV 17 rating will trap 99.97% of air particles that are 0.3-1.0 micron in size and an even better % of particles below 0.3 microns and above (HEPA filters are rated at their worst performance).

Does air filtration help with Covid?

When used properly, air cleaners and HVAC filters can help reduce airborne contaminants including viruses in a building or small space. By itself, air cleaning or filtration is not enough to protect people from COVID-19.

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. … MERV 13 to 16 ratings are usually reserved for filters for labs, hospitals, and operating rooms.

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Will a MERV 8 filter hurt my furnace?

When in doubt, choose a MERV 8 to MERV 10 filter rated for high airflow, so it won’t damage your furnace or air handler.

What MERV rating does Rheem recommend?

4. What MERV rating does Rheem recommend? Rheem recommends filters of MERV 8 and above. This MERV level is strong enough to remove substances like pollen, dust mites, dust and pet dander from the air.

What MERV rating can my HVAC handle?

The EPA recommends MERV ratings of 9-12 because it is the most effective at keeping your home’s air clean. A filter with this rating will prevent particulates as small as 1 micron from entering your HVAC system. This rating qualifies as HEPA (high-efficiency particulate absorption) level.

What does MERV 8 filter?

A MERV 8 filter traps pollen and dust, but also dust mites and mold spores.

What MERV rating does Lennox recommend?

We advise buying no less than a MERV 13 if the system allows for it.