China's fresh air system was originally introduced from overseas, and people have been using it for a long time. In 1956, if you were in the UK, you would notice that almost every household had one or two fresh air systems installed. By 2008, Japan had already sold 15 million units of fresh air systems, making their installation a standard feature in homes. Today, in the United States, having a fresh air system installed indoors is as common as buying a television or refrigerator — even without opening the windows, the indoor air remains consistently fresh. This makes us realize how vulnerable our indoor air environment really is.
Despite this, the popularity of fresh air systems in China remains relatively low. The outbreak of SARS in 2003 led to regulations requiring the installation of new ventilation systems in public spaces like hospitals, schools, and kindergartens. However, to this day, there are no mandatory laws in China requiring fresh air systems in regular office environments or residential buildings. According to statistics, about 99% of homes in China are still not equipped with a home fresh air system. Compared to other countries, the requirements for indoor air quality in China seem less strict.
In the international market, the concept of a household fresh air system originated in Europe, particularly in countries like Germany, Japan, and the United States. Even though these regions generally have better outdoor air quality and rarely face smog, the adoption of fresh air systems is very high, often mandated by law.
It’s important to note that while the term "fresh air system" is used globally, its application varies depending on local conditions. In many foreign countries, the focus of a fresh air system is on ventilation and reducing indoor carbon dioxide levels. However, this approach isn't entirely suitable for China, where air quality is significantly worse due to high levels of PM2.5 and other pollutants. Therefore, Chinese fresh air systems need to not only reduce CO2 but also effectively filter out harmful particles like PM2.5.
Traditional domestic fresh air systems in China often use simple filters that can only block larger particles and require frequent replacement, with limited effectiveness. As awareness of indoor air quality increases, there is a growing demand for more advanced systems that are tailored to China’s unique environmental challenges.
With the 19th National Congress of the Communist Party of China setting the stage for national rejuvenation, the gap between China and developed countries is narrowing. While air conditioning has become an essential part of daily life, issues like "air conditioner disease" have made some people hesitant to use it. At this point, improved versions of foreign fresh air systems are being adapted to fit the Chinese context, becoming increasingly popular and expected to be the next big trend in the market.
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Dongguan Zhonghe Electronics Co., Ltd. , https://www.zhonghesleeving.com