Pick your fresh air, 12 key points for new fan selection

Last month, we introduced new fans, mainly different types of fresh air models and their respective advantages and disadvantages. At that time, I told everyone that the second article would be launched as soon as possible. The specific choice of wall-mounted fresh air is how to choose a more suitable and cost-effective product according to the situation of the family.

Today's article can finally be crossed, and the reason for the draft is not to delay the recurrence of the disease (the disease is not better), but spent a lot of time looking for, research and comparison of different brands of fresh air products. These products are still emerging in China, there is no national standard, there is no industry consensus, and there is no benchmark product. So we don’t just give suggestions like the recommended nets in 2014 and 15 years. Everyone goes to Amoy, but strives to find out what we like to recommend to the new wind products.

After this period of hard work (in fact, not only from the last article, this work began to promise everyone to recommend a new wind last year), we finally selected a new fan that we are relatively satisfied with, currently Talk to them about how to give our readers the best possible discount. You should be able to determine the specific details immediately and tell everyone about this as soon as possible.

So today I also hope that everyone will talk about their ideas in the message area, such as what air quality problems you want to solve most, what are your concerns about wall-mounted fresh air products, what are the expectations of psychological prices, and what is your city? So that we will be more targeted when we communicate. For example, where the activity will be covered first.

Of course, today's core content, from our perspective to talk about how to choose the wall-mounted fresh air products that make you satisfied, we have refined our ideas into 12 key points:

Really do not slam; pure physical purification; one-way positive pressure; filter; opening diameter; air volume range; noise; auxiliary heat function; volume; installation service; post-maintenance and price is not reasonable.

Explain in detail below:

1, don't swear

Everyone knows that we like the advertisements of the sleazy people, so it should be easy to understand why we use this as the first key point. Compared with the air purifier industry, the new wind has just emerged, so the relatives have not yet become a ethos. Even the new wind of Panasonic has not yet learned the XX energy and the XX factor flooding.

However, after three years of study and three days of bad learning, because the environment lacks the punishment for the management of false advertisements, it is estimated that the advertisements of the new wind industry may be swallowed up by other black appliances as well as other home appliances. Recently, some fresh air products have been seen. What XX can be used, the negative ion concept of the negative ion. What is the smell of the forest anion... Is it called the smell of ozone? An air purification product, how to think about making ozone as a selling point? !

So don't swear, this is the first level.

2, pure physical purification

Older wind turbines are commercially available, because such products have more considerations for long-term maintenance costs, so most of them tend to use high-voltage electrostatic dust-removing mode to reduce the cost of replacing the filter.

However, electrostatic precipitator will use high-voltage static electricity, and there is a risk of ozone. It is best to solve the problem by post-it cleaning. Therefore, most of the new empty net products in the past two years have basically been purely physical purification, and no longer use high-voltage electrostatic dust removal technology.

After the wall-mounted fresh air entered the home, the initial stage was still based on high-voltage static technology. But this year, pure physics and new winds have begun to become the main development direction. Compared with the high-voltage static mode, the annual service price of pure physical fresh air is also maintained at a horizontal line.

Since pure physical consumables are not costly, maintenance is simpler, and there are no risks such as ozone. Of course, purely physical fresh air products should be recommended.

3, one-way air positive pressure fresh air

Pipelined fresh air will have air intake and return air, but the current mainstream of wall-mounted fresh air is already a positive pressure type of one-way air intake. The main difference is that the wall-mounted type cannot separately install the air outlet and the return air outlet, at most, the top and bottom of the machine. At the same time, the air inlet and the return air will cause a "short circuit" phenomenon, and the fresh air sucked in by itself does not have time to spread out. I sucked it back.

The positive pressure type fresh air of one-way air intake can avoid the occurrence of short circuit, and evenly let the fresh air gradually spread to reach all corners of the house. Of course, to achieve this, it is also necessary to avoid a relatively large "leakage point" nearby. A window near you is forgotten, and it will also cause a short circuit.

4, filter

Compared with the empty net, the filter screen of the fresh air is much simpler, because the outdoor air is relatively incomprehensible in the interior, and the particulate pollutant is the core problem, so the HEPA layer belongs to just need, if you choose 3M, Toray, etc. For the factory, you can add a little more points. As for the filter grade, H13 is naturally good, but it is not a sin to reach such a high level.

If there are other sources of pollution nearby that cause odors in the outdoor air, consider choosing an activated carbon filter. However, the empty net activated carbon works well because the air is continuously filtered and filtered many times, but the fresh air can only be filtered once, and the efficiency of single-filter adsorption of activated carbon is actually not high, so if the odor of the surrounding air is serious, Even if the fresh air adds a lot of activated carbon, it does not necessarily solve the odor problem.

The filter area needs to be measured. Although many manufacturers provide the annual filter service, the filter area is too small, and the total replacement is also very tired. Without the manufacturer of the filter annual service, the filter area is a very core indicator.

By the way, it has been seen recently that some fresh winds have creatively used square centimeters as the area unit of HEPA. When you see this, remember not to forget 10,000.

5, opening diameter and position

This is one of the main reasons why we didn't dare to discuss the new wind last year, because we worry that the opening sizes of different brands are different, the difference is too big, it is very troublesome if you need to change the brand. However, this year, the choice of 160 mm aperture brand accounted for most of the market. Therefore, if you choose this size model, it is relatively simple to change the brand later.

There is also a part of the brand's installation location has special requirements, such as can only be installed in the corner, limited installation height, etc., this should be compared with your specific use requirements to meet the installation needs.

6, air volume range

Because it is a self-circulating mode, if you want to drive the air flow purification of the entire space, you need a large amount of air. The positive pressure type of fresh air is based on the "squeeze" method, which uses fresh air to continuously inject the polluted air. In theory, even a small amount of air can achieve the whole house ventilation.

Of course, the theory is always lost to the actual, because in fact, the sealing effect of each door and window in the room is completely the same. There are always some places that are relatively easy to leak, so the air mobility in other places is weak. Therefore, for large spaces, or when it is necessary to quickly deal with the problem of air in the whole house, on the one hand, it is necessary to cooperate with the air to accelerate the air flow in the whole house. On the one hand, it also needs a new wind to have a large air volume.

When the purification is basically completed, the air quality can be maintained with a lower fresh air volume, which can reduce noise, energy consumption and filter loss.

Therefore, for fresh air, it is not only the air volume, but it is better to have a larger air volume range. The high wind speed can quickly intake air, and the low wind speed can save energy and low noise.

7, the lowest noise

Speaking of noise, this is the core indicator of the new wind. When you sleep at night, you can change the air quality of the bedroom. This is one of the most important usage scenarios of the new wind. High noise means affecting sleep and using sound. Pollution replaces air pollution.

So just like when we talk about empty net, we must consider the mute problem of low wind sleep stalls. The fresh wind must not forget to compare this – the low wind file of the alternative product with the noise value of the air volume.

8, auxiliary heat function

The people of the South will pass this one.

We discussed the overheating exchange in the last article of the new wind. Because the size of the wall-mounted fresh air mainframe is limited, the efficiency of the heat exchanger will be much lower than that of the pipeline. In fact, the meaning of heat exchange is not great, and it will cause the aforementioned "Short circuit" problem, there is no way to form a positive pressure.

For the north, it is a bit annoying to get cold air from the outdoors in the autumn and winter. Therefore, in addition to remembering to use the low windshield at night, it is necessary to use the electric auxiliary heat function. For families that are more concerned about this, it is recommended to choose a fresh air with a relatively large heating power.

9, volume

What is the most valuable in a Chinese family room? The area of ​​use is the most valuable. Therefore, although the big things feel more real, even if the problem of aesthetics and limited installation is not considered, the space is of course as small as possible under the premise that other indicators are similar.

There are some machines that are small in size, but the air inlet holes are not well designed. The fuselage cannot cover the bolt eyes of the fixed punch when punching. This is also a problem.

10, installation service

This is actually one of the biggest differences between the empty net and the fresh air. The empty net is sent directly to the home to install a wheel, and a filter is just fine. Fresh air requires punching or changing glass, similar to installing an air conditioner.

At present, the mainstream brand of fresh air can guarantee the installation of “dust-free and non-staining”. For families that have already been renovated, this is still to be done. However, the noise during the hole is still inevitable, so it is necessary to visit a park or a mall in the family when the property is allowed to be renovated.

For fresh air manufacturers, whether it is a self-built installation team or a professional third-party installation team, it will involve the scope of installation, and can only be expanded according to a city and a city, so sometimes see good Products, but do not provide installation services in their own city, is also very annoying.

11, use and maintenance

The operation mode of the fresh air is generally divided into a touch button, a remote controller, and a mobile phone remote control. Mobile phone control is more foreign, but you must ensure that the wifi of the new fan is online. If the home network is disconnected, there is no way to use it. From this point of view, the machines that provide multiple modes of operation are more user-friendly, especially if there are elderly people at home, giving them a remote control on the bed is far better than forcing them to use App or WeChat to control.

For purely physical wall-mounted fresh air, post-maintenance is relatively simple and involves only the replacement of the filter. At this time, the main consideration is the price. How much does it cost to replace a set of filters? How many sets need to be replaced in a year? If the annual service is provided, there are no replacement limits and conditions, and the annual fee.

12, reasonable price

Under the premise that all indicators are satisfactory, the price is the core. Cost-effective, cost-effective, performance is good, the price should be reasonable.

To be honest, the current fresh air industry is still in the initial stage, and the overall price is still a certain high. Of course, there are some families who don’t care about the price. There are a lot of friends who have closed their eyes and bought many IQs at home. But from the perspective of product recommendation. If there is too much water in the price, it is impossible to recommend it.

With good prices and good products, this is a good business logic, rather than taking advantage of the Chinese family's concerns about air issues. In the few years of empty and hot, various foreign domestic manufacturers, with false propaganda and overwhelming advertising, sold a large number of ultra-low cost products in China. I hope that the new wind industry will not experience such a cycle.

The above is the 12 key criteria for our own search for satisfactory fresh air products, I hope to give you some reference.