What are the grades and classifications of air filtration equipment at home and abroad? What are the applicable places and people for air filters?

What are the classifications of domestic and international air filtration equipment?Air FilterWhat are the places and people for whom it is suitable?

Classification of air filtration equipment efficiencies and ratings at home and abroad

I. Internationally accepted classifications

1, coarse-effect filter is divided into four levels: G1 efficiency, particle size ≥ 5.0μm, filtration efficiency E ≥ 20% (corresponding to U.S. standard C1); G2 efficiency: particle size ≥ 5.0μm, filtration efficiency 50>E ≥ 20% (corresponding to U.S. standards C2 - C4); G3 efficiency: particle size ≥ 5.0μm, filtration efficiency 70>E ≥ 50% ( corresponding to U.S. standard L5); G4 efficiency: particle size ≥ 5.0μm, filtration efficiency 90>E ≥ 70% (corresponding to U.S. standards L6). G3 efficiency: for particle size ≥5.0μm, filtration efficiency 70>E≥50% (corresponds to U.S. standard L5); G4 efficiency: for particle size ≥5.0μm, filtration efficiency 90>E≥70% (corresponds to U.S. standard L6).

2, the medium-effect filter is divided into two levels: F5 efficiency: particle size ≥ 1.0μm, filtration efficiency 50>E ≥ 30% (corresponding to the U.S. standard M9, M10); F6 efficiency: particle size ≥ 1.0μm, filtration efficiency 80>E ≥ 50% (corresponding to the U.S. standard M11, M12).

3, the high and medium efficiency filter is divided into three levels: F7 efficiency: particle size ≥ 1.0 μm, filtration efficiency 99>E ≥ 70% (corresponding to the U.S. standard H13); F8 efficiency: particle size ≥ 0.5 μm, filtration efficiency 90>E ≥ 75% (corresponding to the U.S. standard H14); F9 efficiency: particle size ≥ 0.5 μm, filtration efficiency 99>E ≥ 90% (corresponding to the U.S. standard H15). (corresponding to U.S. standard H15).

4, sub-high efficiency filters are divided into two levels: H10 efficiency: for particle size ≥ 0.5μm, filtration efficiency 99>E ≥ 95% (corresponding to the U.S. standard H15); H11 efficiency: for particle size ≥ 0.5μm, filtration efficiency 99.9>E ≥ 99% (corresponding to the U.S. standard H16).

5, high efficiency filter is divided into two levels: H13 efficiency: particle size ≥ 0.5μm, filtration efficiency E ≥ 99.9% (corresponding to the U.S. standard H16); H14 efficiency: particle size ≥ 0.5μm, filtration efficiency E ≥ 99.99% (corresponding to the U.S. standard H17).

II. Common domestic categorization

1、Primary filter, for ≥5 micron particles, filtration efficiency 80>E≥20, initial resistance ≤50Pa.

2、Medium-efficiency filter, for ≥1 micron particles, filtration efficiency 70>E≥20, initial resistance ≤80Pa.

3, sub-high efficiency filter, for ≥ 0.5 micron particles, filtration efficiency E ≥ 95, initial resistance ≤ 120Pa.

4, high-efficiency filters, ≥ 0.5 micron particles, filtration efficiency E ≥ 99.99, initial resistance ≤ 220Pa.

5, ultra-high-efficiency filter, for ≥ 0.1 micron particles, filtration efficiency E ≥ 99.999, initial resistance ≤ 280Pa.

Extended Reading:

Where air filters are used and who air filters are used for:

Applicable places for air filters

(1) Places that are more closed or heavily contaminated by secondhand smoke, etc.

(2) Newly renovated or recently refurbished homes.

(3) Places where people with asthma, allergic rhinitis and hay fever live.

(4) Places where pets are kept.

(5) If there are weak people in the family, such as the elderly, children, pregnant women, and so on.

Who the air filter is for

(1) respiratory disease patients: as we all know, in the polluted air for a long time in the life is very likely to cause a decline in respiratory function, triggering a variety of diseases, such as rhinitis, chronic bronchitis, asthma, emphysema and so on.

(2) Children: As we all know, children are still in the process of development, the body's immune system is relatively fragile, easy to be harmed by all kinds of pollution, resulting in a continuous decline in physical fitness, developmental delays, and may also induce the occurrence of asthma in children, while affecting the development of intelligence.

(3) Pregnant women: Pregnant women who are exposed to more serious indoor air pollution usually feel sick all over, and even experience adverse symptoms such as dizziness, sweating, chest tightness, etc., which will also have a certain impact on the development of the fetus.

(4) home renovation family: this also refers to the people who live in the newly renovated houses, because the formaldehyde, benzene and other substances in the indoor environment of the newly renovated is very high, long-term exposure may cause a variety of respiratory diseases as well as leukemia and other symptoms.

(5) Elderly people: the physical functions of the elderly are showing a declining trend, and therefore tend to be a variety of chronic diseases, if coupled with air pollution, the chances of inducing high blood pressure, heart disease, cerebral hemorrhage and other diseases will be even higher.

(6) Hospitals: Hospitals have always been a major source of disease transmission, so poor air quality will accelerate the spread of disease.

(7) Office family: as the name suggests, this refers to the people working in the office building, in such a constant temperature, confined space for a long time, and if you meet the air quality is not good, it is even worse! Not only will lead to dizziness, chest tightness, fatigue, emotional ups and downs and other undesirable symptoms, but also cause a variety of diseases, and in serious cases, even cause cancer.

(8) Drivers: The small space inside a car is characterized by a lack of oxygen and, from time to time, by serious exhaust pollution.