Pollution season: Remember these key points when buying an Air Purifier as North India’s air quality worsens

tech.hindustantimes.com:

It is that time of year—winter is knocking as autumn sets in, and meanwhile, air pollution in North India, especially in Delhi NCR, is on the rise. With Diwali on the horizon, things are soon going to get worse. Amid this, it makes sense to invest in an air purifier for your home. Not only can these devices maintain a healthy environment inside your home, but they can also bring additional benefits such as reducing dust buildup and more. However, there is no one-size-fits-all formula when buying an air purifier; there are many factors one must keep in mind before making a purchase. Here, let us explain the basics of air purifiers and how to choose one. Read on.

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Firstly, let us explain the basic way air purifiers operate. It starts by sucking in air from the surroundings; the air goes through various layers of filters, which filter out toxins, harmful pollutants like PM 2.5, and other particles, and then clean air is expelled. Most air purifiers have a multi-layered filtration system, with a pre-filter that catches most of the larger particles, such as hair, pet fur, and dander. The air then passes through a HEPA filter and a carbon filter, which remove the remaining particles, such as pollen and PM 2.5 and PM 10.

As the air purifier runs, it continues to filter the air, but it is important to note that once you turn the air purifier off, the air quality will soon return to its original levels—so it makes the most sense to keep it on if you are present in the room.

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Before you purchase an air purifier, there are two key points you must remember: the size of your room and the compatibility of the purifier, along with the costs of filter replacements.

You cannot expect an air purifier to clean the air of your entire room; the capacity of each air purifier is different, so you should consult the manufacturer's