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The Difference Between N95 Masks, Medical Masks And Protective Masks

Do you know what types of masks are available, and what are the differences between these masks? Today we will discuss this issue.

N95 mask

It implements the American mask standard and has passed the NIOSH certification. It requires the filtration efficiency of particles with a diameter of 0.3μm or more in the air to reach more than 95%, and it can basically play a defensive role against ordinary viruses and bacteria.

The N95 medical protective mask also has the function of blocking liquid splashes. The outer surface of the mask adds a green hydrophobic protective layer, the main function of which is to protect the slight liquid or blood from splashing and penetrating.

N95 medical protective masks also have special requirements for the following parameters:

(1) Synthetic blood penetration

(2) Surface moisture resistance

(3) Microbiological indicators

These three indicators are aimed at the hospital treatment environment, which is specifically formulated for the workplace of medical staff. In addition, medical masks cannot have breathing valves, because they need two-way protection to prevent the patient's virus-carrying droplets from being directly discharged and causing infection.

Regular style:

Three-layer cup-shaped N95 mask, with a layer of non-woven fabric on the outside, high-efficiency filter paper in the middle, and a layer of needle-punched cotton on the inside.

Four-layer foldable N95 mask, one layer of non-woven fabric on the outside, the second layer of high-efficiency filter paper, the third layer of needle-punched cotton, and one layer of non-woven fabric on the inside.

Disposable medical mask

It is required that the bacterial filtration rate is not less than 98%, the particulate filtration rate is not less than 98%, the respiratory resistance is less than 60Pa/cm2, the synthetic blood penetrates under the pressure test of 120mmHg, and the blood penetration of 32 masks is not more than 3.

Since biological specimens such as blood may be splashed during surgical operations, in order to prevent these specimens from splashing on the doctor’s face, and to prevent bacteria from the doctor’s face from falling to the surgical wound during the operation, the surgeon needs to wear a standard surgical protective masks.

It is suitable for the basic protection of medical staff and related personnel.

Conventional style: three-layer flat mask, two layers of non-woven fabric on top and bottom, and a layer of high-efficiency and low-resistance filter paper in the middle.

Disposable civilian protective mask

Disposable protective masks have a large filter pore size, which can only filter some large particles such as dust and particles, and cannot effectively block the invasion of viruses and bacteria. Suitable for general protection in public places.

Conventional style: three-layer flat mask, two layers of non-woven fabric on top and bottom, and a layer of ordinary filter paper in the middle.

If the following situations occur, the mask should be replaced in time:

1. When the respiratory impedance increases significantly;

2. When the mask is broken or damaged;

3. When the mask cannot be closely attached to your face;

4. When the mask is contaminated (for example: when it is stained with blood stains or droplets and other related foreign objects);

5. It was once applicable to individual wards or patient contact (because the mask has been contaminated);

6. If the mask contains activated carbon, there is a peculiar smell inside the mask.

If you would like to discuss more about this topic, please feel free to contact Wellmein