How To Choose The Right Air Purifier

How To Choose The Right Air Purifier

Increasing air pollution and outdoor contaminations may seem alarming, but that does not mean you are safe indoors either. It may be the other way around.

As air pollutant emission continues to play an important role, the importance of air purifiers is bound to increase and is your first line of defense against pollutants. It is also beneficial for asthmatic patients as it improves indoor air quality.

Choosing the right air purifier is in no way a simple task, though. There are various factors and options to consider, from negative ionizers to the best HEPA air purifier. This can often lead to a lot of confusion.

So, how do you choose the right one? Here’s what you need to consider.

Types of Filters

Before purchasing air purifiers, you need to consider various aspects. This includes the filter levels and types as well. Filters are one of the main features of air purifiers.

  • Pre-Filters

These filters are like polyester and foam filters that are non-woven. The filters help remove large particles before the next filtration stage.

  • Anti-Bacterial Filters

Antibacterial and Germicidal filters help remove harmful germs and minuscule bacteria from the air.

  • True HEPA

There are many advantages to choosing the best HEPA air purifier. It brushes up the air quality in your kitchen, hospitals, labs, and other places.

  • Activated Carbon Filters

The activated charcoal or carbon filters can absorb any odor and gaseous particles. That is why it helps neutralize smoke, food smells, chemicals, and fumes.

  • Photocatalytic Oxidation and UV Filters

A metal plate coated with titanium dioxide and UV light is used in this filter. This helps in physically breaking down chemicals and oxidizing them for better filtration.

CADR Ratings

When choosing the best air purifier, you should focus on the facts and numbers more than the marketing hypes. One of the valid and vital factors is the CADR rating. You can find out how much clean air comes out of the purifier through this rating.

The higher the CADR number, the more efficient the air purifier will be in the same room size.

Pro Tip: If you want an air purifier with less noise, choose a higher CADR rating and room size.

Room Size

The room size covered by a purifier is another critical number to pay attention to. If you have a bigger area, then you will require larger purifiers. Therefore, it is vital to ensure that the air purifier you get is functional within a space 20-40% larger than your room.


The warranty and customer service are generic factors you should consider while getting any product, not just an air purifier. Always make sure to find out about the after-sale services of your air purifier since it is a significant investment. Also, a more extended warranty will keep your product protected from manufacturing defects.


Remember that the best air purifiers have some similarities in their technologies. Now, the based product may vary depending on your individual needs. Other than the product’s functionality, many factors are involved, such as the size of your space and maintenance.

That being said, knowing about the primary factors will help you make the right choice. So, go through this guide when getting a new air purifier, and you will never go wrong.