Today, 2022, the word "smog" slowly disappeared from the public eye, in the Foreign Ministry's regular press conference on June 15, Phoenix Satellite TV reporter asked Foreign Ministry spokesman Wang Wenbin said that a study by the University of Chicago in the United States showed that China's reduction in air pollution in 7 years is comparable to the reduction of air pollution in the United States in 30 years, if this trend continues, the average life expectancy of Chinese will increase by 2 years. Wang Wenbin responded to a set of data: in 2021, the average proportion of days with good air quality in 339 cities at the prefecture level and above in China was 87.5%, an increase of 0.5 percentage points over the previous year; 64.3% of cities with air quality standards in the whole year; The average annual concentration of fine particulate matter (PM2.5) was 30 μg/m3, down 9.1% from the previous year.
The PM2.5 mentioned in the data is what we often call smog, there is no doubt that the amount of control is directly linked to the life, it can be seen that over the years, with the increase in the supervision of industrial pollution, the implementation of the National VI emission standards, the vigorous promotion of clean energy, the goal of double carbon and so on, haze has really disappeared in life. So the smog is gone, how should we improve it? Many people will say "double carbon", 2030 carbon peak, 2060 carbon neutrality, this is also our country's goal, but in fact to our people, everyone's focus on the air from pollution to quality, without pollution, everyone's attention in recent years has focused on air temperature, humidity, oxygen content and so on. The sales volume of humidifiers, dehumidifiers and air purifiers has increased exponentially, and where people's demand is, the market is where it is.
With the growth of people's demand, in addition to these small household appliances, household central air conditioning, fresh air system, three-constant system, full air system, etc. have begun to enter people's field of vision, which were previously used in large commercial buildings of the machine, have begun to gradually civilian, into thousands of households, the improvement in living comfort is also very obvious. In 2021, the key "double carbon first year", a new indoor air system came into being - Gu Nai low-energy house construction.
Gu Nai low energy house construction is a particularly interesting new system, he can complete the temperature, humidity, oxygen content, purification control of the whole house with an energy saving of 60-80%. I don't know if you know that there is a passive house concept abroad, which was proposed in Germany and entered German laws and regulations, and was perfected around 2006. Passive house has a very strict energy consumption limit, the domestic building is certainly not possible to come according to german standards, but we can do our own "passive house", gu is low energy consumption house is such a direction, in the carbon reduction at the same time can improve comfort, can establish our own low energy consumption house standards, which is also the valley is low energy consumption house and other central air conditioning, fresh air system, three constant system and so on the biggest difference.
This is a look, the valley is low energy consumption to build a house is really a system of benefits and no harm, really to say that the valley is the disadvantage of low energy consumption house, may be the need to design and install in the decoration stage, there is no way to install the house that has been renovated. The average number of renovations of a house in China is 3 times, which means that at present, Gu Nai's low-energy consumption house can still have a large market space to perform.
Imagine that no matter whether it is spring, summer, autumn or winter, there is a spring breeze at home that gently caresses the face, and this wind is not an air-conditioning wind, but a natural wind that adjusts the temperature, humidity and oxygen content after purification by Gu Nai's air treatment technology. Living in an excellent environment every day has a subtle impact on the body, which is why the United States says that the average life expectancy of Chinese will increase by two years.
Gu Nai is so good, it's very expensive, right? In fact, Gu Nai's goal is to be able to transform the national housing air system to help achieve the double carbon target, so in terms of price is also quite civilian, so to the central air conditioning and Gu Nai to choose, what will you choose?