Disposable protective weapon: medical surgical mask
Medical surgical masks, as a disposable protective weapon, play an important role in medical treatment and daily life. The following is a detailed introduction about medical surgical masks:
Main uses and features:
Medical surgical masks are mainly used in the operating room, outpatient medical care, laboratory and other medical environment, to cover the user's mouth and nose and jaw, to prevent pathogens, microorganisms, body fluids, particles and other direct penetration, to provide physical protection barrier.
It can prevent the spread of dander and respiratory tract microorganisms to the open surgical wound, and prevent the body fluids of surgical patients from spreading to the medical staff, and play a two-way biological protection.
Structure and composition:
Medical surgical masks are usually made of components such as masks, shapes, straps, etc., and are generally made of non-woven materials.
The standard surgical mask is roughly divided into three layers. The outer layer has a water resistance layer to prevent droplets and liquids from penetrating into the mask. There is a filter layer in the middle to filter pathogenic microorganisms. The inner layer near the nose is used for moisture absorption.
Main technical indicators:
Filtration efficiency: under the condition of air flow rate (30±2)L/min, the filtration efficiency of sodium chloride aerosol with aerodynamic median diameter (0.24±0.06)μm is not less than 30%.
Bacterial filtration efficiency: under the specified conditions, the filtration efficiency of Staphylococcus aureus ATCC6538 is not less than 95%.
Pressure difference: under the specified conditions, the pressure difference between the two sides of the mask for gas exchange should not be greater than 49Pa.
Synthetic blood penetration: After 2ml of synthetic blood is sprayed to the outer surface of the mask at a pressure of 16.0kPa(120mmHg), the inner surface of the mask should not penetrate.
Applicable environment and occasions:
Medical surgical masks are not only suitable for medical clinics, laboratories, operating rooms and other demanding environments, but also can be used in places of daily life, such as roads, buses, subways, shopping malls and other densely populated places, to filter dust in the air, and to reduce the spread of some respiratory infectious diseases through droplets.
Note:
Before using a medical surgical mask, you need to wash your hands to ensure hand hygiene.
When wearing, you should distinguish the inside and outside, up and down of the mask. The light-colored surface is the inside, the dark-colored surface faces the outside, and one end of the metal strip (nose clip) is the top of the mask.
The mask should cover the mouth, nose and jaw of the user and minimize the gap between the face and the mask.
Use time should not be more than 4 hours, if the mask is contaminated or wet, should be replaced in time.
In summary, as a disposable protective weapon, medical surgical mask has important application value in medical treatment and daily life.
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Disposable hygiene products refer to various daily necessities that are discarded after one use, directly or indirectly in contact with the human body, and used for the purpose of human physiological hygiene or health care (antibacterial or antibacterial). These products are widely used in personal care, medical and health care, baby care and other fields, and are an indispensable part of modern life.
Disposable protective weapon: medical surgical mask
Medical surgical masks, as a disposable protective weapon, play an important role in medical treatment and daily life. The following is a detailed introduction about medical surgical masks: