How to be the most beautiful little girl in the lab?

I often hear friends who do scientific research complain,
There are always irritating smells in the lab,
The environment is harsh,
The masks they wear don't seem to work at all.
It's really not easy to do experiments,
Especially for girls, their skin is delicate and sensitive, and they are prone to allergies.
Want beautiful handsome, skin is very important oh ~
So, have you ever thought about it,
Are you really wearing the mask you're used to?
What kind of mask can you use to protect yourself effectively? In fact, many children's shoes in the purchase of misunderstanding, feel that masks, all the same, can cover the face of the good. In fact, a good performance mask, not only good filtering effect, but also easy to breathe; only wearing comfort, can be more comfortable and comfortable to do experiments.

According to the intensity of filter effect, there are many types of masks, such as non-woven cloth, activated carbon, N95, etc.

Category I: Non-woven three-layer non-woven mask（http://www.hnhbsj.com ）

The base version of the mask. Three-layer structure; the inner surface absorbs water, the middle layer is filter bacteria, and the outer layer is waterproof. Soft P. The cloth is made to reduce fiber shedding; the inner layer touches the skin of the face and uses spiny cloth, which is more comfortable and soft than non-woven cloth, and can absorb moisture and sweat without producing moisture.

Ultra strong bacteria and particulate matter filtration performance. Materials are certified, sunscreen, anti-allergic, especially suitable for skin sensitive people. Lugs with elastic, not tight, provide the best wear comfort experience. In general, most experiments can wear this model, after all, the price is relatively cheap.

Type II: activated carbon four-layer active carbon mask

An updated version of the mask. The outer layer of high quality activated carbon can be effectively adsorbed on the surface, and the inner layer of the mask is made of new materials. It is soft and does not cause skin sensitivity, good hygroscopicity, smooth surface and more comfortable wearing.

Category III: N95 Series N95 masks

N95 series masks, commonly known as gas masks, are high-fitting masks, so the price is relatively expensive. It has been approved by NIOSH 42 CFR84 N95 standard and has high safety. It has three layers, cup-shaped internal and external anti-water design, reduces the possibility of contact with pollution sources, effectively prevents various viruses such as bacteria, avian influenza, SARS and so on, and is suitable for the study of highly toxic organisms, pharmaceuticals and other experimental fields.

Perhaps some friends in the process of using masks there will be some confusion, it does not matter, the study carefully collected frequently asked questions and answers（http://www.hnhbsj.com） :

1. What type of mask is best for the PCR experiment?
PCR test is generally more toxic, it is recommended to use N95 mask is safer, but the cost is relatively expensive.

2. A lot of reagents in the laboratory have irritating smell, the environment is abominable, what kind of mask can use to protect effectively?
General less toxic experiments, can choose ordinary three-layer non-woven cloth or four-layer active carbon mask, can meet the requirements. If the laboratory is toxic and the environment is bad, the N 95 mask is recommended for higher safety.

3. How do you wear a mask? Are there any pros and cons?
The mask has a color side outward. The mask should cover the mouth, nose and chin completely. Press the metal pieces on the mask along the sides of the nose beam so that the mask is close to the face. Damaged masks must be discarded.

4. How long does the mask usually last?
Wear a disposable mask continuously, generally not more than 4 hours, and if occasionally intermittent wear for a while, can be reused, but on that day must be thrown away, or too many bacteria. If wearing a mask in the cell room, it is recommended to change it every time, otherwise it is easy to introduce bacteria from the outside to cause cell contamination.

The material comes from the network.
For more information on biochemical reagents, please pay attention to the official website of Huibai Reagent: http://www.hnhbsj.com
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