Air purifiers are a perfect solution to a clean and fresh house due to air filtration and the removal of harmful components. The devices have become easily accessible to most people, and most of them own one or more depending on the area of use. Using an air purifier is easy, which greatly benefits and eliminates the need for an expert in offering guidance. We discuss everything you need to know about air purifiers below.

Everything You Should Know About Purifiers

Air purifiers generally improve air quality indoors. We look at few related topics below to help understand more about air cleaners.

1. Tips for Selecting an Air Purifier

It’s important to know the purpose of the device, why you want it, and if it filters pollutants related to your needs or those of your home.

  • Go for devices with the HEPA filters as they have been tested and certified, ready for use. The filters have numerous advantages proving their efficiency and safety among all persons.
  • Find out the maintenance costs, replacements needed, and cost of repairs in case of a breakdown.
  • Check the CADR ratings and compare them with other devices. It shows you how effectively the air purifier filters particular contaminants.
  • Consider the features on the device and the noise levels to see which one suits your location best.

2. What Does CADR rating Mean?

CADR or clean air delivery rate lets a user know the effectiveness of an air purifier in filtering pollutants. If the cleaner machine is labeled CADR 200, it can eliminate the said pollutant’s concentration say pollen, and replace it with 200 cubics of fresh air within a minute. The higher the rating number, the more harmful components the gadget can remove from the air, meaning it’s more efficient than that with a lower CADR rating.

However, the numbers given may be affected by various variables within the home, like dampness. This causes the air purifier to perform at a lower level than its maximum rating.

3. Which Filters are Used in Air Purifiers?

Mechanical filters are mostly recommended since they physically stop the particles from going through them, leaving fresh and clean air to pass. Filters can be categorized into pre-filters, the main filter, and the activated carbon filter. The pre-filters are designed to trap large particles preventing them from reaching the main filters.

It helps prolong the life of these filters as they are not easily clogged. They are washable and reusable, but few can be disposed of and replaced with new ones. The main filters catch smaller particles, and the best kind is the HEPA filter. The activated carbon filters are responsible for trapping gases, odors, and organic compounds. Regular replacement must be done to keep them effective.

4. Do Air Purifiers Make Too Much Noise?

The amount of noise is dependent on the fan speed. Some fans are silent when the speed is low, while others produce a humming sound. Some come with five-speed settings, so choose a level that is convenient for you.


No particular air purifier is the right one for everyone, but they vary based on one’s preferences. Shop widely and check which kind purifies the pollutant in your indoor space and has the features you desire. Consider the CADR rating, maintenance cost, noise level, and other important factors for you to make your choice.


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