(Video is for extended reading only)
Text / Tencent Digital Yokii
In Beijing's winter, it is either a gale or a big brother. There is no one day suitable for work. However, under the driving force of humanity’s core core: “poorâ€, we still have to rush to work on the road every day, even if the weather is already so invisible that we can't see it... but just think about it. "Fight" it...
The first is serious but not boring science time:
In the end is the haze?
Very vernacularly, haze is a combination of two words. The fog is mainly water. The kind that the air is floating in is, although you can't see individual particles, the assists that get together and fog can seriously affect the visibility. And can suck small particles in the lungs, these particles will cause a variety of respiratory diseases, the most important is everyone's "very familiar" PM2.5, this 2.5 is actually the diameter of the particles, the unit is micron, so it is not alone A substance, similar to PM10, PM0.3, etc., so to prevent haze days, in fact, the focus is to prevent flooding.
Why do some masks prevent haze?
Since the focus is on preventing small particles, it is nothing more than two methods. The first mechanical method is to block them with a finer mesh than the small particles. To stop PM2.5, either use a gap of less than 2.5 microns. Materials are masked or they are stacked together.
The second is to use a bit of chemical properties, such as the adsorption of small particles with active adsorbent materials such as activated carbon. Therefore, all those who do not have blessings with these two kinds of blessings, or blessings with blessings, but who don’t face the face can do so. Every time the haze is seen on the road, someone is wearing a non-woven mask on the road, or an ordinary cotton mask swings around the street. I am very sad... Your inner mask is dust-proof... dust ratio It's much better...
There are also classified haze?
Now air forecasters often add a “main source of pollutants.†This is actually a “species†of smog. For example, if it is mainly from burning heating, it is mainly non-oily particles, which are more common. If the main source of today is exhaust or cooking, I am afraid that there are still many oily particles in the air. This is even more annoying.
So... so much to say... Hey just saw the “enemies†and didn’t even talk about how to fight. Don’t worry — know what you’re talking about—this means fighting!
The most effective course is to wear an air purifier in an airtight room, or to stay in a closed car to drive a car air conditioner (usually to purify it), and then not to go outside...
When I didn't say... don't...
To go out, of course, is to give the nose and nose part of a relatively high quality of air friends ~ (not to wear a mask what words!)
Just now, there are non-oily particles and oily particles in the haze. The level of the two enemies is actually not the same. In the U.S. and U.S. national standard mask monitoring standards, non-oil particles can be prevented and oils can be prevented. There are two standards for granules. For example, you can sometimes see logos such as N95 (American Standard), N97 (American Standard), and KN90 (National Standard) on a mask, which means that it can prevent 95%, 97%, or 90. % of non-oily inhalable particulate matter that can prevent both oily and non-oily inhalable particulate matter is P(America) or KP(National Standard), P95, P97, KP90.
So do you know that the price of a mask is so much worse?
Although the number behind N or R is larger, the protection is more in place, but the air permeability is generally relatively poor, and the more uncomfortable the breathing, the 95-level is usually more commonly used.
In general, P95 masks are relatively large and expensive, such as this
Or like this
Although the effect is the best, obviously it will be a bit embarrassing to walk on the street... Therefore, people generally prefer to use the N95 level because they are often used to the next level. Therefore, masks made of N95 materials are also used. It's the most common.
Which effect is better at the same level depends on the airtightness, which is common:
It usually covers the chin. The part of the nose can be shaped by itself. Breathing is a bit influential, but it can work with the nose and mouth, and it can be accepted. Generally speaking, as long as big manufacturers say, carelessness should be taken care of when taking care of the nose, and airtightness is not bad.
Containment: 4 stars
Comfort: 3.5 stars
Price: 5 stars (about 6 yuan)
Aesthetics... probably have 1?
So there are a lot of companies that are starting to look good, like this:
In fact, the principle is the same as common, is to shrink the N95 filter cotton, set a shell, changed the direction of entering and exiting the air, use plastic shell, then it is not so easy to deformation fit the face, so usually also the veneer area Reduce, add a cotton pad to achieve better sealing. The downside is that the appearance is very high, yes, you are not mistaken, looks ...
Because if your nose is tall and hard, there will be gaps in the position of the nose. If you have a large mouth, you will be affected by the mouth of the mouth with a sponge pad. When you look down, the line of sight will be larger, and it will be more meaningful than the previous one.
Only consider the Asian Standard's Slender Nose
Containment: 4.5 stars
Comfort: 3.5 stars
Price: 3 stars (about 250 yuan)
Aesthetics: Extreme evaluation based on aesthetic presentation from 0 to 5
Some people choose this type of stuffed nose for perfect look, or for talking/food/whistling:
This kind of monitoring result that I didn't find any special authority does not seem to apply to the mask implementation standards that I said earlier, and only covers the nose and mouth. What do you think? Can you be happy when your mouth won't breathe?
Containment: 2.5 stars
Comfort: 3 stars
Price: 4 stars (about 50 yuan)
Aesthetics: 5 stars
If these are just simple variants that mainly solve the problem of good or bad, then the next few to say are very powerful. They solve the problem of smooth breathing.
For example, this one, directly connected to the air purifier on the mask!
The amount... Put the wrong picture... This is a brain hole that is too big for a student to make... The back is an ordinary home air purifier...Heavily heavy?
I would like to say this, the N95 standard mask has a small air purifier, because it is the air purifier air, so it is very comfortable to breathe, the mask is light, the external small air purifier can also be tied in On the arm, suitable for running.
When I first saw this design, I felt like I was incredibly impressed. I hurried to fix it one by one until I had a taxi. The brother asked me: Did you take the ventilator?
Hmm... kinda... like...
Currently idle.
Containment: 4 stars
Comfort: 4 stars
Price: 3 stars (ranging from 150-500 yuan)
Aesthetics... Can I write 0?
Then this is not an external purifier, but adding a small fan in the mask is much better:
In fact, this kind of filter still uses the same filter as the ordinary mask described above, but a small blower is added inside to help you send air, so it is much smoother than simply breathing. The disadvantage is that the battery is stuffed in the mask. And a small blower, the shell must be made of plastic, the whole body will be relatively heavy, and then not easily deformed shell common problem, refer to a good-looking version of the general mask.
Only consider common Asian features
Containment: 4.5 stars
Comfort: 4 stars
Price: 3 stars (ranging from 150-500 yuan)
Aesthetics: Extreme evaluation from 0 to 5 according to aesthetic presentation.
Speaking of this, it is basically the form of a mask, but it may be beyond your understanding of the future (in fact, it is beyond my understanding).
This one! At first glance, it is a necklace... this can prevent haze? I don't quite believe it...
But look at the description of the business, using anion purification technology, you can release negative ions from the small necklace, remove the small particles in the surrounding air...
It looks very powerful... But I still don't think it is reasonable... The air is flowing? Is it a big deal to clean up such a small area? Will it just purify a bit of air, but before I'm able to breathe, it will flow somewhere else?
This one seems to be a little more reliable.
Although it is completely open, people's air outlets are at least around the nose and mouth.
According to the official website's product introduction: "This product uses high-efficiency electrostatic dust removal technology, combined with negative ion purification technology, based on the 'Bernoulli equation' design, using the aerodynamic shape of the air purification module and the hydrodynamic effect produced by human respiration (wind curtain effect ) Make clean air gathered at the mouth and nose at the same time, to block the outside air pollution into the nose and mouth. Static elimination rate can reach 90%, the dynamic rate of removal can reach 80%."
can not read it....
how about it? These two do not understand a little bit? Since I have not used it and I really do not know what the effect is, I will not score it. However, the order has been placed. After two days of delivery, I will experience a period of time. Then I will tell you the effect of the video. Please continue to pay attention to Tencent Digital!
Product Advantages
♦ Best optical transparency
♦ Versatile activation,Maintenance free, scratch-proof
♦ Durable, maintenance free with long-life expectancy
♦ Multi-touch 20 points detection,Plug and play
♦ Easy installation,Low power consumption, powered through USB
Ir Touch Frame,Ir Touch Screen Kit,Install Infrared Touch Panel,Ir Touch Frame Diy
ShenZhen GreenTouch Technology Co.,Ltd , https://www.bbstouch.com