Why the N95 only sells for 1500

n95，1500？The normal version, why do you still buy it when you buy a mobile phone now? Basically, the current price is either second-hand or refurbished,To play with smart phones,Recommend the machine I use now,1500Start with,Dopoda S900 is commonly known as diamond,CPU main frequency528,320W pixels,480 640 resolution VGA screen,GPS positioning navigation,WiFiUnlimited Internet access,It belongs to a more affordable mobile phone。

Microsoft operating system,You can brush the system at will,Completely let you play with personality,Unlike Nokia, you have to check the machine every three months or so,And the installation of software basically requires a certificate,The most frustrating thing is that Nokia's battery is not durable。 Don't buy Nokia, hurry up and change to Dopod, I'm also from Nokia, such as.

Zhongguancun does not necessarily have a good reputation, and it is not they who sell, but merchants who sell!

N95 parallel imports don't need to be considered to include N95 8G at all, and all of them are refurbished machines. I can bet you. If you go to a regular mobile phone store to buy licensed goods, you have to wait a few days to transfer the goods.

Parallel imports don't need to be considered at all, they are refurbished, and this model has been out of production for a long time. It's better to buy licensed goods.

If you buy water, you don't know how many people have used it. I may have renovated it several times.

About 1500 can buy N95 I think it is generally a refurbished machine, I also do mobile phone wholesale work, in Sichuan Province to do, we ** more than 2000, 8G version to more than 2500. So you must think carefully before you buy. Now the refurbished machine can also be seen from the surface, but the main version can not be sure!

After all, N95 is the old machine emperor for more than 2 years, **2000 1500 are normal. The refurbished machine can only be judged by seeing the actual machine. There are many ways to distinguish between refurbished machines and new machines on the Internet.

Go to ** buy it, use Alipay, choose to join the store of 7-day unconditional return, and return it directly if the phone is not good.

The N95 has been out of production for n years. The parallel goods are all refurbished machines.

No exceptions.!!

Q: Don't believe it, it must be a refurbished N95 model that has been around for so long, you get what you pay for.

Everyone buys N95 and doesn't buy KN95 because N95 has better protection.

N95 masks are not recommended because they are not required in general life situations. If you just go out for a walk or walk alone, there is no need to wear an N95 mask, because the higher the protective performance of the mask, the worse the breathability, which will hinder the normal breathing of the person. Especially the elderly and children who cannot wear it when running and have relatively weak respiratory function should not wear N95 masks often.

It is not accurate to say that N95 masks are not recommended, and the use of N95 masks can effectively avoid the spread of the new coronavirus. In everyday contact, it is not easy to identify whether a person in close contact is contagious. Going out as little as possible, not visiting the door, and not gathering is the best protection for yourself and the people around you.

And no matter what kind of mask, it is very important to wear it in a standardized manner, and you must ensure that your mouth and nose are covered so that the mask and your face remain tightly fitted.

Functions and uses of N95 masks

The N95 mask has a filtration efficiency of more than 95% for particles of aerodynamic diameter. The aerodynamic diameters of airborne bacterial and fungal spores vary mainly between and are also within the protection range of N95-type masks. Therefore, the N95 mask can be used for respiratory protection of certain particulate matter, such as dust generated during the process of grinding, cleaning and handling minerals, flour and certain other materials, as well as liquid or non-oily particulate matter that does not produce harmful volatile gases due to spraying.

It effectively filters and purifies inhaled odors (other than toxic gases) and helps reduce exposure to certain inhalable microbial particles (e.g., mold, Bacillus anthracis, Mycobacterium tuberculosis, etc.), but does not eliminate the risk of contact infection, illness or death. The U.S. Department of Labor has recommended that health care workers use N95 masks to prevent airborne diseases such as influenza and tuberculosis.

Summary. Pro, the standard and the process are different. The difference between KN95 and N95 masks is that N95 is the standard of the United States, and KN95 is our Chinese standard, which means that it has at least 95% filtration efficiency for non-oily particulate matter aerosols, so it is because of the difference in this standard and process that the difference between KN95 and N95 is caused.

Pro, the standard and the Gongjing Hall art cover burn are different. The difference between KN95 and N95 masks is that N95 is the standard of the United States, and KN95 is our Chinese standard, which means that there is at least 95% filtration efficiency for non-oily particulate aerosol products, so it is due to the difference in this standard and process that leads to the difference between KN95 and N95.

N95 masks are certified by the National Department of Health and Human Services (NIOSH). This means that N95 masks must undergo rigorous testing and evaluation before they can be considered to have sufficient filtration efficiency to effectively prevent airborne bacteria and viruses from entering the body. On the contrary, the KN95 mask is Huaimeng certified by China's National Health Commission (NHC).

KN95 masks have also undergone rigorous testing and evaluation, but their testing standards may differ slightly. It is this process and standard that makes N95 the most expensive!

There are also some differences between N95 masks and KN95 masks in terms of common specifications. N95 masks generally fit the human body better and are also slightly superior to KN95 masks in terms of expiratory resistance. This means that N95 masks are more effective at preventing airborne bacteria and viruses from entering the body, but at the same time, they may also feel slightly more comfortable.

Conversely, KN95 masks are generally more comfortable, but may not be as efficient as N95 masks in terms of filtration efficiency.

There are also some differences between N95 masks and KN95 masks in terms of durability. N95 masks are generally more durable because their material is more durable and has higher compressive strength. This means that N95 masks are better resistant to wear and tear and stretching, making them more likely to retain their original sensitive shape and performance during use.

Conversely, KN95 masks are generally slightly less durable than N95 masks, and they may be more susceptible to deformation or damage during use.

The reason why KN95 is cheaper than N95 is: N95 masks and KN95 masks are also different. N95 masks are generally more expensive because they are more expensive to produce, but also because they consume more time and resources during the rigorous testing and certification process.

Conversely, KN95 masks are generally more affordable because they are less expensive to produce and because they have relatively fewer testing and certification requirements. Overall, N95 masks and KN95 masks are effective protective masks, and Xiangkai can help prevent airborne bacteria and viruses from entering the body. However, there are some differences between them in terms of certification bodies, common specifications, durability, and Changyuan.

When choosing which mask to use, you should weigh it according to your needs and budget.