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June 18, 2010

Better Air Filter Than HEPA? It's Called ULPA

HEPA is widely considered the gold standard when it comes to air filtration, especially for those patients suffering from allergies. What many people may not realize is that there are air filters even better than HEPA called ULPA.

HEPA removes 99.97% of particles 0.3 micrometers or more.

ULPA removes 99.999% of particles 0.12 micrometers or greater.

ULPA is correspondingly much more expensive.

Here are some HEPA filters sold on Amazon.com:



Here is an ULPA unit sold on Amazon.com:

Fauquier blog
Fauquier ENT

Dr. Christopher Chang is a private practice otolaryngology, head & neck surgeon specializing in the treatment of problems related to the ear, nose, and throat. Located in Warrenton, VA about 45 minutes west of Washington DC, he also provides inhalant allergy testing/treatment, hearing tests, and dispenses hearing aids. Google+ Christopher Chang, MD Bio

1 comment:

  1. How long has ULPA have been certifying filters? I have used HEPA certified filters and they are really good filters. They meet most of the industrial requirements I need but maybe I can try ULPA in the future

    ReplyDelete

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