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MERV Filter Replacement

MERV Filter Replacement

As air circulates through a structure’s HVAC system, air filters trap and accumulate both large and tiny particulates such as dirt, allergens, and even bacteria. According to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), this filtration helps supply much healthier indoor air quality. A filter’s MERV number suggests exactly how it’s ranked to get rid of these particles. But what is MERV score, precisely?

An air filter’s minimum performance coverage worth (MERV) ranking determines just how efficiently the filter stops dust as well as other impurities from passing through the filter as well as right into the air stream. Filters with higher MERV scores catch tiny particles more effectively than filters with reduced MERV scores.

Generally, filters with a ranking of MERV 16 or below are taken into consideration to be HVAC-system-grade filters for residential, commercial as well as basic health center usage. MERV 17 through MERV 20 filters are generally made use of in medical operating rooms, clean spaces, as well as various other environments that require absolute cleanliness.

MERV Filter Ratings and Efficiency

When choosing the appropriate filter for your application, a higher number is not always better. Utilizing an air filter with a MERV score higher than what your heater or a/c unit maker recommends can really impair its performance.

The smaller pores in extra highly ranked air filters develop resistance to air flow, and if the filter is used in an A/C system that is not designed to manage this resistance, it can decrease the system’s effectiveness, reduce interior air quality, as well as place excess stress on the system’s fan.

MERV Filter Scores and Your Air Quality

A manifesto released by ASHRAE looked at the claim that bit purification has wellness advantages. According to this paper, there’s a well-developed connection between higher particulate counts in exterior air and bad health results, so it would make sense that filtering these particulates out of interior air could lead to much better wellness results.

Below you will find  achart explaining the difference in MERV ratings. It is important to note that if you are not 100% confident in your ability to replace your MERV filter, especially if it is a MERV 13+, we can absolutley help.

 

APPLICATION

CONTROLS THESE CONTAMINANTS

PARTICLE SIZE

MERV 1

MERV 2

MERV 3

MERV 4

·      Pre-Filter In Commercial Building

·      Residential Furnaces

·      Window Air-Conditioning Units

·      Pollen

·      Dust mites

·      Sanding dust

·      Textile/carpet fibers

Filters down to 10.0 micron particle size

MERV 5

MERV 6

MERV 7

MERV 8

 

·       Pre-filters or Final Filters

·       Commercial Buildings

·       Better Residential Buildings

·       Industrial Workplaces

·       Paint Booth Inlets

 

·      Pollen

·      Dust mites

·      Sanding dust

·      Textile/carpet fibers

·      Mold/spores

·      Dust lint

·      Cement dust

 

Filters down to 3.0–10.0 micron particle size

MERV 9

MERV 10

MERV 11

MERV 12

·      Pre-Filters or Final Filters

·      Hospital Laboratories

·      Better Commercial Buildings

·      Superior Residential Buildings

 

·      Pollen

·      Dust mites

·      Sanding dust

·      Textile/carpet fibers

·      Mold/spores

·      Dust lint

·      Cement dust

·      Legionella

·      Lead dust

·      Humidifier dust

·      Coal dust

·      Nebulizer dust

Filters down to 1.0–3.0 micron particle size

MERV 13

MERV 14

MERV 15

MERV 16

·       Final Filters

·       General Surgery

·       Superior Commercial Buildings

·       Hospital Inpatient Care

·      Smoking Lounges

 

·      Pollen

·      Dust mites

·      Sanding dust

·      Textile/carpet fibers

·      Mold/spores

·      Dust lint

·      Cement dust

·      Legionella

·      Lead dust

·      Humidifier dust

·      Coal dust

·      Nebulizer dust

·      Bacteria

·      Tobacco smoke

·      Auto fumes

·      Sneeze nuclei

·      Insecticide dust

·      Copier toner

·      Pet dander

·      Face powder

Filters down to 0.3–1.0 micron particle size

MERV 17

MERV 18

MERV 19

MERV 20

 

·       Final Filter

·       Clean Rooms

·       Radioactive Materials

·       Pharmaceutical Manufacturing Facilities

·       Carcinogenic Materials

·       Orthopedic Surgery Room

 

·      Pollen

·      Dust mites

·      Sanding dust

·      Textile/carpet fibers

·      Mold/spores

·      Dust lint

·      Cement dust

·      Legionella

·      Lead dust

·      Humidifier dust

·      Coal dust

·      Nebulizer dust

·      Bacteria

·      Tobacco smoke

·      Auto fumes

·      Sneeze nuclei

·      Insecticide dust

·      Copier toner

·      Pet dander

·      Face powder

·      Virus carriers

·      Carbon dust

·      Sea salt

·      Combustion smoke

·      Radon progeny

·      Odor

·      Microscopic allergens

Filters down to less than 0.30 micron particle size

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