Consider These Issues Before You Buy An UV Air Purifier

UV air purifier

Is an ultraviolet or UV air purifier an apt choice for you and your family? The claims of germ-free air seem too much to pass up. However, is UV air cleaners the investment worth it for your health? Before buying this tall-claimed product, have a look at whether these five issues.

Five Issues Impacting Performance and Satisfying You

  • Is it strong enough?
  • Are germs exposed for quite a long?
  • Do you sacrifice either particle removal or sterilization in HEPA filter UV air purifiers?
  • Is UV sterilization essential or only an extra expense?
  • Can UV rays damage the HEPA filter that can cause premature failure?

Two Key Aspects to UV Effectiveness – Exposure and Dosage

Ultraviolet rays or light sterilize microorganisms without a doubt. The microorganisms include mold, bacteria, and viruses. Of course, they are under controlled conditions.

Initially, a UV light is directly exposed to a contaminated surface with enough intensity – the dosage.

Next, the light illuminates the surface for a long time – the exposure.

Is it possible to achieve the same results in an air purifier? With microorganisms moving so quickly through it, you have to wonder if they are exposed to UV light long enough to be sterilized.

More sterilization occurs at lower fan speeds; however, that suppresses the air volume being treated. In an ideal case, you need a UV air sterilizer or an air cleaner with strong UV rays or light (high dosage) to get sterilization with a top airflow rate.

Combining HEPA Filters And UV Sterilization

If you need to remove particulates during sterilization of germs then a UV air purifier (HEPA filter) is the way to go. However, receiving enough exposure and dosage starts to rise again. Not every HEPA air purifier alongside UV light offer the dosage essential to sterilize microorganisms.

Minimizing fan speed in HEPA air purifiers might amplify sterilization but downs the machine’s air cleaning capacity. The trickiness of balancing sterilization and high-performing particle filtration is the reason some top-quality air purifier manufacturers do not provide the UV option.

In high-performing air purifiers, separate sterilization is not as ‘necessary’ as it seems. Since the HEPA filter can grab particles down to 0.01 micron. Why add sterilization if microorganisms would get filter from the air?

Certain air purifier manufacturers that offer ultraviolet as an option combine the HEPA filter with UV light. This combo kills microorganisms killed by the filter and thus uplifts consumer concerns about germs breeding in the filter.

However, concerns are there about what UV light would do to the HEPA filter. In essence, HEPA material can become break up over time if exposed to UV rays or light. This can squeeze the life of HEPA filters and demand more regular filter changes.

Ending Note

In short, when looking at HEPA filter ultraviolet air purifiers, you want a high enough dosage to provide sterilizing/killing power at the reduced exposure time of the top airflow rate. You also want the filter to be protected from UV light damage by concealing it away from the light or by being made of materials that seem to be relatively immune to UV damage.

Leave a Reply

Your email address will not be published. Required fields are marked *