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According to statistics, people spend about 70% of their lives indoors, with an average of 12 cubic meters of air per person per day, while urban residents spend about 70%-90% of their time in various indoor environments every day. Therefore, air quality is essential to human health. We can see the clean ground, shiny furniture, transparent glass... but we can't know whether the indoor air is clean. In fact, every living room may contain invisible air pollution. According to the World Health Organization (WHO) report, nearly half of the world's people are exposed to indoor air pollution.
Three indoor pollution gases:
1. Biological pollutants
Small size but wide spreading range, fast speed, easy to cause sneezing, eye discomfort, coughing, asthma and other allergic reactions. The number of bacteria and viruses is huge, and they spread widely at an extremely rapid rate, which can easily cause a variety of diseases. Fungal spores are easy to spread and multiply in the air in humid and warm climates, and long-term contact can easily cause allergies and asthma.
Dust, dust mites, and dust make breathing uncomfortable, and it is a breeding ground for dust mites and fungi. Dust mites are very small insects that often grow on mattresses, sheets and furniture, or are suspended in the air, increasing the chance of asthma. Flowers outdoors and even in vases can produce pollen. People with allergies can cause obvious discomfort to the respiratory tract, eyes and skin after inhalation. The hair and dander of pets and humans are very small, which can easily enter the human respiratory system and provide favorable conditions for the reproduction of dust mites and fungi.
2. Odor
From pets, cooking, garbage, and humans. The peculiar smell is unpleasant and affects home life and the neighborhood environment.
3. Chemical pollutants
From cigarettes, decoration projects, cleaning supplies and furniture, long-term contact irritates the skin, nerves and respiratory tract, causing health risks.
Secondhand smoke
It is determined by the US Environmental Protection Agency and the International Agency for Research on Cancer as a human category A carcinogen. It contains hundreds of toxic substances and carcinogens such as carbon monoxide and formaldehyde, which are particularly harmful to children who are still developing in the lungs.
formaldehyde
Splints, pressed boards, urea-formaldehyde resin products and floors from everyday furniture are classified as harmful carcinogens. High concentrations of formaldehyde can irritate the eyes, nose and respiratory system. In severe cases, it can cause asthma.
Benzene series
Including benzene, toluene, xylene, etc., some of which are identified as carcinogens by the World Health Organization. Mainly comes from various building materials organic solvents, such as paints, coating additives and wallpaper, carpets, synthetic fibers, etc. Long-term exposure can cause chronic poisoning, neurasthenia and blood system symptoms. In severe cases, aplastic anemia, leukemia, and death may occur.
Radon gas
From soil, rock, granite, etc. Radon gas is colorless, tasteless, and difficult to detect. Radon decay products accumulate in the lungs. It is the second cause of lung cancer and ranks second only to smoking.
Air purifiers, also known as "air cleaners", air fresheners, and purifiers, refer to decoration pollution that can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, formaldehyde, etc.) , Bacteria, allergens, etc.), products that effectively improve air cleanliness, are mainly divided into household, commercial, industrial, and building.
The air purifier is mainly composed of a motor, a fan, an air filter, an ion tube and other systems. Its working principle is: the motor and fan in the machine circulate the indoor air, and the polluted air will pass through the air filter in the machine. For the removal or adsorption of pollutants, some models of air purifiers will also be equipped with a negative ion generator at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation) to continuously ionize the air and produce a large number of negative ions. The fan sends out to form an airflow of negative ions to achieve the purpose of cleaning and purifying the air.
