With regard to air pollution, the word “mog” appears in the minds of most people, but very few know that indoor pollution poses even less serious health hazards because people spend more than 80 per cent of their time indoors. Do you know how many impurities you can't see in the air you breathe? The us epa has confirmed that indoor pollution is the top 18 carcinogens. A person breathes about 15 cubic metres of air per day, approximately 1. 3 kg per cubic metre, equal to 20 kilograms per person per day, while the real harm to humans in the air is our invisible toxic gas and particulates, “do not turn a blind eye”. How does the air cleaner choose? There are three main air purification technologies in the market: electrostatic, hepa filter and ionfall, which are analysed in a comprehensive manner below. 1. Static: advantages: the continuous release of high voltage static from tungsten wires, the carrying of a positive charge for dust and bacteria, followed by adsorption by negative electrode plates, can filter small dust fumes. There is no need to replace consumables and use them simply. Shortcomings: the ozone releases are poorly controlled and vulnerable to human harm. The efficiency of purification is only 50-70 per cent; electrodes require periodic manual cleaning and are time-consuming. Representative brands: hoover, desai, grand gin, beon, etc., usa. 2 hepa filter technique: advantages: effective safety, removal of particulate pollutants, pollen, allergy, pm0. 3. Disadvantages: unable to filter harmful gases. The use of space must be of good air confidentiality, otherwise the air can be bypassed by filters without filtering, resulting in insufficient indoor oxygen supply. There is a need to replace filters on a regular basis and to use them at high cost, which can cause secondary contamination. Representative brands: iq air, blueair, aller air, etc., 3 and ion falls: advantages: no filter, no secondary contamination, automatic cleaning, flexible use. Ninety-nine per cent of ultra-purification efficiency can be decontaminated to nanoscales, pm0. 0025 particles, including influenza viruses such as sars, avian influenza, bacteria, and ultra-nuclei that pose the greatest health risk to humans. Disadvantage: no goods. There are only commercial types on the market, but the good news is that small domestic air cleaners, suitable for ordinary families, can be accepted and imported into finland before the heating season. On behalf of the brand: finnish aavi (beijing yavi technology) electrostatic technology can remove particles, change the filter cores at a small cost, make it convenient, but it is inefficient to cleanse and create ozone, and therefore not suitable for small spaces like bedrooms. The hepa filter is designed to be cleaner and cleaner, more efficient in adsorption of activated carbon, more problematic in the filter and more susceptible to secondary pollution. Ionic falls is highly graded, cleaner and more efficient, with no future maintenance costs and completely saves time and energy-saving choices。
