Table 1 MERV rating of particles filters and make, model, and uses

MERV-1

< 20%

N/A

N/A

N/A

MERV-1 filter (G1)

Capture large particles such as fibers, dust mites, and pollen

MERV 2

< 20%

N/A

N/A

N/A

True blue model 114201

MERV 3

20–34%

N/A

N/A

N/A

Flanders NaturalAire

MERV-1 and 2 are used as pre-filter to capture most larger airborne particles after the air is blown into the machine, while MERV 3and 4 are suited for window air-conditioning units

MERV 4

35–49%

N/A

N/A

N/A

E–Z flow air filter model 10055.01162

MERV 5

50–69%

N/A

N/A

N/A

3 M filtrete 100 MPR

Capture large particles such as lint, household dust, mite debris, and mold spores

3 M filtrete 300 MPR

MERV 6

70–85%

N/A

N/A

N/A

Flanders air filter, MERV 6

MERV 7

≥ 85%

N/A

N/A

N/A

3 M filtrete 600 MPR

Provide very good for most residential, pet owners, rural, dusty areas, and industrial workspace

MERV 8

≥ 85%

N/A

N/A

N/A

Flanders Pre-pleat 40

Flanders NaturalAire Standard

Ace pleated model 4122354

MERV 9

≥ 85%

< 50%

N/A

N/A

N/A

Capture lint, pollen, dust, pet dander, smoke, mold spore, baking flour and smog

MERV 10

≥ 90%

50–64%

N/A

N/A

Glasfloss industries ZLP16251 Z-Line Series

MERV 11

≥ 90%

65–79%

N/A

N/A

3 M filtrete 1000 MPR

Provide excellent filtration for most residential, pet owners, rural, dusty areas and industrial workspace

3 M filtrete 1085 MPR

Ace micropartivle model 4,122,354

MERV 12

≥ 90%

80–89%

N/A

N/A

3 M Filtrete 1500 MPR

3 M filtrete 1550 MPR

MERV 13

≥ 90%

≥ 90%

< 75%

N/A

3 M filtrete 1900 MPR

Capture lint, pollen, dust, pet dander, smoke, mold spore, backing flour and smog, in addition to airborne pathogens such as bacteria and viruses

3 M Filtrete 2200 MPR

Aeolus synthetic mini-pleat

Aerostar pleated air filter

MERV 14

≥ 90%

≥ 90%

75–84%

Filtrete 2800 MPR

Provide excellent filtration in smoking lounges, hospital inpatient care and general surgery, and superior commercial and electronic manufacturing

MERV 15

≥ 90%

≥ 90%

85–94%

Nordic pure

MERV 16

≥ 90%

≥ 90%

≥ 95%

Lennox X7935

MERV 17

> 99.97 on 0.30 μm particles

IEST Type A

Provide ultimate decontamination up to 6 log reduction for clean rooms, pharmaceutical manufacturing facilities, carcinogenic and radioactive materials

MERV 18

> 99.99 on 0.30 μm particles

IEST Type C

MERV 19

> 99.999 on 0.30 μm particles

IEST Type D

MERV 20

> 99.9999 on 0.10–0.20 μm particles

IEST Type F