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Choosing Air Purifier FAQ

What is an air purifier and how does it work? 

An air purifier removes pollutants, allergens, and other particulate matter (PMs) from the air in a confined room. Air is drawn to pass through a series of filters and then cleaner air is released back into the room.


What are the commonly targeted air pollutants that HEPA air purifiers remove?

A good standard HEPA air purifier traps PM2.5 pollutants including mold spores, certain bacteria, and viruses, and reduces volatile organic compounds (VOC) and odor. It is too costly for HEPA-quality purifiers to filter dust, and it is more effective and efficient when the equipment is working at an acceptable level of indoor hygiene. 


What are the different types of air purifier filters?

The highest recommended filtration mechanisms in a good air purifier include a Pre-filter to trap dust-size particles, then a HEPA 12-13 filter, and an activated carbon filter. There are also built-in ionizing and UV-C neutralizing functions.


Read more on filter trapping mechanisms including HEPA filter


What is the purpose of an activated carbon filter?

It mainly removes odor and VOCs. 


How do ionizing and UV-C functions work?  

In ionizing, PMs that are charged are drawn and trapped to oppositely charged surfaces.

While UV-C light neutralizes bacteria, viruses, and other microorganisms that are trapped on the surface of the filters. 

Read more about the efficiency of UV light on moving airflow.


What are the benefits of using an air purifier?

The benefits include improved indoor air quality (IAQ) and better overall health (wellness). 

The reduction of allergies triggered by PMs addresses common indoor respiratory and skin allergies and asthma symptoms, Sick Building Syndrome, and unpleasant odors.

How to choose the right air purifier? 
  • Room type and size. 

  • Determine your main concern (specific needs) when considering an air purifier i.e., allergies (sinus, asthma, odor). 

  • Technical specifications: Certifications, from a Trusted Brand and Industry Standards for long-term performance (Energy Efficiency, CADR, and CCM).

  • Budget and local distributor support.

  • Talk to the sales representative to understand more.


About CADR and CCM, the Performance Measurement Standard. 
  • Clean Air Delivery Rate (CADR) measures how quickly a purifier cleans the air. 

  • Cumulate Clean Mass (CCM) measures the continuing efficiency of a purifier to perform over a period of time, undergoing a series of industry test parameters. 

  • The performance efficiency of most electronic equipment will deteriorate over time. CCM P4-rated air purifiers are the highest industry standard.However, not many air purifiers in the market list this specification. 

  • BROAN KJ310F-A02 meets the highest standard requirements of CADR and CCM.

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