Blue Sky Filter is a professional air filter supplier and car air filter manufacturer in China since 2009.

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There are many considerations for the purchase of HEPA filters

by:Blue Sky Filter     2022-03-11

At present, household air purifiers are relatively common. From a technical point of view, there is not much difference between domestic and foreign brands. Relatively speaking, in terms of brand influence and quality, some well-known home appliance manufacturers like Panasonic and Philips are more credible, and of course their average prices are also higher. This is not to say that the more expensive the better. The main price difference is the difference in functionality. At present, most air purifiers are not just as simple as filtering PM2.5. High-end air purifiers have added various functions such as formaldehyde removal, sterilization, and humidification of air. Therefore, the price ranges from a few hundred yuan to several thousand yuan. Generally speaking, air purifiers below 1,000 yuan only have one or two purification functions such as dust removal and formaldehyde removal. The functions of air purifiers above 3,000 yuan are more comprehensive, and there are basically three or more ways to purify the air. However, for users, the more functions, the better. For example, the main purpose of a user buying an air purifier is to remove PM2.5. At the same time, the living environment is an old house, and it will not be renovated in the near future, so there is basically no problem of formaldehyde. Then he only needs to buy a single function except PM2.5 air purifier. If the user is a newly renovated house and wants to remove formaldehyde and filter PM2.5 particles in the air, then he needs to buy an air purifier device with relatively diverse functions.

At the same time, another major factor that affects the price is the use of HEPA filters. Some products with higher prices adopt the multi-layer overlapping combination of HEPA filters. On the one hand, it can increase the effect of air filtration, and at the same time can reduce the The number of times the user has replaced the HEPA filter. But the use of these simple techniques in advertising terms tends to overstate its scope. For example, some manufacturers advertise that their products do not need to replace the filter for ten years, but in actual use they often fail to meet the requirements. Because it is actually the quality of the air quality and the user's boot time that determine the service life of the filter, two families in Beijing and Harbin using the same air purifier must have different degrees of filter consumption. The same 24 hours a day non-stop users and users who only open one day a week, their filter replacement frequency is also very different.

Many users are often entangled in the frequency of replacing the filter when purchasing an air purifier. In fact, each family environment and frequency are different. Replacement once every 3 months and once a year is both It is normal that the frequency of replacing the filter does not indicate the quality of the air purification, let alone the quality of the product. However, I still want to remind everyone that when buying an air purifier, try to use HEPA filter multi-layer thickened products. On the one hand, it saves the trouble of replacing the filter screen, and on the other hand, it can guarantee the effect after filtering. The advertising slogan promises that it will not be replaced for many years. When the dust is full, it must be replaced in time. At the same time, the HEPA filter should be made of high-quality products. Do not blindly covet cheap, otherwise our health will be damaged.

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