Open 5 techniques for selection Air purifier to cope with PM2.5 dust occupying the city, how to choose for the best efficiency?
It’s a problem that Thais have to face once again for dust.PM2.5 By today website Airvisual Global air quality data report on time 06.00 N.M. found that Bangkok has the highest polluted air value ranked 3rd in the world
Air purifier Hence, it is essential in times of air poisoning. Let’s see how we can choose how to get an air purifier. The most efficient use Which Ajarn Jesada Denduangboriphan Faculty of Biology Faculty of Science, Chulalongkorn University Used to give advice on buying The air purifier is as follows
1. Consider the size of the room. Whether the machine that we buy has enough air purification efficiency in our room or not, as if a large room. Need to buy a big one Because if using a small device It will work hard and will not be able to reduce the dust to a safe level. On the other hand, if the room is small but bought a big machine. Will cause a waste of electricity
2. See the type of filter supplied with the machine. That there is enough resolution to filter dust PM2.5 Or not, the optimal level of the filter is called the hppa filter (HEPA filter) Will capture fine dust in large quantities At a price that is not too expensive
While some brands May be a filter at a lower resolution like EPA (Like model E10 E11 E12 Which is not as good as hepa H13 H14) Because it is cheaper, can be used But it takes a longer time to remove dust from that room. When compared with the HEPA level filter
3. Explore the machine’s specifications by looking 2 The value is the air flow value. airflow Or the amount of air that is sucked in and discharged from the machine If there is a high air flow value Means that the air purifier It is effective in purifying the air quickly and value. CADR ( Clean Air Delivery Rate) Or the rate of clean air that comes out in one unit of time, the more valuable CADR The higher the air purifier, the more efficient it works.
4.Explore that air purifier How noisy work Even if it is installed in the bedroom Should choose a machine that has a night mode Which gives a very quiet sound Or at least The sound level should not be exceeded. 30 Decibel
5. Explore whether the air purifier How much energy saving Is the filter price high? Because it has to be replaced after using it for a while There are other functions to help, such as a dust detector. The effects of setting the timer on and off Warranty time as well?
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