How to select and wear a new coronavirus personal protection guide mask

First Category: Regular Medical Mask Buy now

Mainland China masks are printed on the upper right corner of the outer box along with the implementation standards for registered products.

YY0469-2011 (medical surgical mask)

YY / T0969-2013 (disposable medical mask)

Readers are encouraged to purchase products with the above logo.

Disposable Medical Face Mask | Disposable Medical Face Mask

Excerpts from the “Disposable Medical Mask” YY / T0969-2013 standard:

Suitable for covering user’s mouth, nose and chin

Mask filtering efficiency must be above 95%

Ventilation resistance for gas exchange on both sides must be 49 Pa / cm2 or less

The package for a disposable medical mask must include:

Product name;

Manufacturing date and / or batch number;

Manufacturer name and contact information.

Execution standard number;

Product registration certificate number;

Instructions for use (including at least front and back identification and mounting instructions);

Storage Terms; “disposable” word or symbol.

For sterilized products, the corresponding sterilization mark and all sterilization methods and sterilization periods are required. Spec size; must indicate product use.

Medical Surgical Mask | Surgical Mask

Excerpts from the “Medical Surgical Mask” YY0469-2011 standard:

Used to cover the user’s mouth, nose and chin, it provides a physical barrier to prevent direct infection of pathogenic microorganisms, body fluids and particles.

The bacterial filtration effect of the mask should be more than 95%

The filtration efficiency of non-oil particles should be more than 30%

The pressure difference on both sides of the gas exchange should not exceed 49 Pa

Mask material must use non-combustible material

Mask material must be insensitive

Within 5 seconds of the mask leaving or leaving the flame

The medical surgical mask must be packaged with:

Product name;

Manufacturing date and / or batch number;

Manufacturer name and contact information.

Execution standard number;

Product registration certificate number;

Instructions for use;

Storage conditions;

A “disposable” word or symbol.

For sterilized products, there must be a corresponding sterilization mark, indicating all sterilization methods and sterilization periods.

Specifications and tolerances;

Product use.

Wearing a medical mask

Second category: N95 medical particle protection mask and surgical mask Buy now

N95 disposable anti-particle mask is the most commonly used protective mask in the medical field. The filter element belongs to the filter layer for cleaning air particles. N95 respirators (and other respirators) are certified by the National Institute of Occupational Safety and Health (NIOSH) and are approved for use in the medical sector in China, the United States, Canada and Australia.

There are three types of filter elements for medical masks: N type, R type and P type.

The N95 mask is one of them. The main difference between these three types is the degree of filtration and purification of the protected object in different environments (such as airborne particles and dust).

To help everyone remember which filter element is right for which environment, the National Occupational Safety and Health Association provides the following guidelines:

Not resistant to N-grease.

R Reasonably resistant to grease.

P effect on oil

The so-called “95” indicates that the filter efficiency of the N95 mask is 95%. Divided by filtration efficiency, the N-type mask filter element has three filtration levels: 95% (N95), 99% (N99), and 99.97% (N100 or high efficiency filter), all 0.3 mm diameter particulate environment Has been tested with.

Patients with air and particles as the routes of infection (pulmonary tuberculosis, atypical pneumonia, severe acute respiratory syndrome)

Both the US and Canadian CDCs recommend that healthcare professionals use N95 masks such as the N95-1860 / 1870 manufactured by 3M. If you use a standard European mask, the height of FFP2 is the same as N95.

The standard for medical protective masks in China is

GB19083-2010, similar products are N95 9132 and N95 1860 from 3M.

Centers for Disease Control and Prevention in the United States and Canada recommend the use of N95 masks such as 3M’s N95 1860 / 1860s and 1870+ for healthcare professionals.

The European standard for protective masks is EN 149: 2001 (protection of solid and liquid sol substances and oily sol substances). According to different filtration efficiencies, EN149: 2001 masks are classified into three levels: FFP1 (80% *), FFP2 (94%), and FFP3 (99%). Among them, the EU region has adopted FFP2 (94%) as the minimum medical protection standard, and the UK region has adopted FFP3 (99%) as the minimum medical protection standard. (* Filtration efficiency)

FFP2 (94%) is equivalent to N95 and KN95 masks. (Do not spray alcohol on the mask, as masks treated with isopropyl alcohol will have a sharp decrease in protection.)

3M N95 1860 / 1860s / 1870 + * Take medical particle prevention mask and surgical mask as an example (* s = small, small),

According to official guidelines, a fit test is required before wearing the N95 mask. Readers are advised to be referred to an expert under the conditions tested.

(Editors, based on experience, believe that most women can wear 1860 and men can wear 1870+. This is for reference only. Readers who cannot test should consult an experienced expert. It is highly recommended to choose the right size as much as possible).

If you are in short supply, ask your healthcare provider and disease manager to provide a medical surgical mask that meets national standards.

Note: Fit test

In the United States, people who use ventilators for occupational reasons are subject to the United States Occupational Safety and Health Administration (US OSHA) 29 CFR 1910.134 (Respiratory Protection Standard) medical assessment, use, training and proximity testing. Select and use a mask in accordance with all applicable regulations, standards and expert guidance. The tightness test should be performed after the subject has worn all safety devices that can be worn at the same time as the ventilator. Some worn equipment, such as hair caps and glasses, can interfere with the reseal effect of the ventilator.

In Canada, you must follow the requirements of CSA Standard Z94.4. You must comply with all applicable local regulations. This ventilator is intended for adults who are well-trained in its usage and restrictions to meet professional / professional use needs.

It is recommended to use a 3M FT-10 (sweet solution) or FT-30 (bitter solution) qualitative adhesion tester, or other United States Occupational Safety and Health Administration approved adhesion testing procedure. .

N95 mask wear

Source of wear instructions: 3M Company

First step

Hold the protective mask so that the nose clip is on your fingertips and hang the headband under your hand.

Second stage

With the nose clip up, hold the mask under your chin, pull the upper headband behind the top of your head, pull the lower headband over the top of your head, and place it behind your neck under your ears.

Third stage

Place your fingertips on the metal nose clip, starting from the center position, press the nose clip inward with both hands, then gradually move sideways and gradually to shape the nose clip according to the shape of the nose bridge.

Note: If you pinch the nose clip with one hand, the seal will be inadequate and the protective effect will be impaired. You need to use both hands.

4th step

Please check the wear resistance before each use. Cover the mask completely with both hands and exhale. Be careful not to change the position of the mask. If there is a leak near the nose clip, readjust the nose clip according to step 3. If air leaks are around the mask, adjust the headband position.

I hope everyone survives the flu in a healthy and safe way and has a high incidence of viral colds! Family health! If you found the article useful, please like it and follow the collection ~ Thank you ~

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