sure is. did u find the link to the brochure?
http://www.grainger.com/ec/pdf/Sun-Pure-SP-20C-Product-Brochure.pdf
Yup, that thing is nice. I need one for the house. Plants get the single hepa.
Designed for hospital operating rooms, the Sun-Pure Hepa filter removes up to 97% of microscopic particles
and airborne allergens as small as .3 microns.
(The average human hair is 80 microns in size and a bacterium is 1 micron in size.)
Hepa filters, developed by the military are capable of filtering out bacteria, fungal spores, dust mites, pollen,
insect dust, animal dander and tobacco smoke. These microscopic particles are known to be one of the
primary causes of asthma, emphysema, hay fever, chronic bronchitis and allergies. The elderly and children
are especially vulnerable.
The Sun-Pure “Six Step” Air Purification System
• STEP ONE: Cleans the Air of Macro Particles
A treated (5) micron pre-filter removes all particles from the air larger than (5) microns, extending the life
of the Hepa filter and protects the gas absorbing media from dust coating and fouling.
• STEP TWO: Hospital Grade Hepa Filter Removes Allergens
A hospital grade Hepa filters remove allergens so small that they can only be seen with a microscope.
Pollen, mold, fungal spores, dust mites, cockroach dust, tobacco smoke and bacteria are but a few examples.
• STEP THREE: Absorbs Toxic Chemicals and Gases
A specially formulated gas absorption media absorbs automobile exhaust fumes, organic hydrocarbons,
formaldehyde from particle board used in home construction, paint solvents, chlorine, cleaning chemicals
and other fumes until the Photo-Catalytic converter destroys the pollutants.
• STEP FOUR: “Photo-Catalytic Oxidation” Destroys Toxic Chemicals and Eliminates Household Odors
Activated carbon, zeolite and potassium permanganate used by the best air purifiers can rapidly absorb large
quantities of toxic fumes, however this media quickly becomes saturated and slowly release pollutants back into
the air stream. Photo-Catalytic Oxidation converts toxic compounds, even carbon monoxide and nitrous oxide,
into benign constituents such as carbon dioxide and water without wearing out or losing its effectiveness.
• STEP FIVE: Ultraviolet Light Kills Disease Germs on Contact
Ultraviolet light 10,000 times the intensity of sun light kills viruses and bacteria too small to be filtered out
by a Hepa filter. Ultraviolet technology combined with photo-catalytic oxidation is the most important
feature in air purification since germs are easily spread from one person to another by central heating and
air-conditioning systems.
• STEP SIX: Negative Ions Improve Sleep and Keep Air Fresh
Oxygen in the air reacts with ultraviolet light to produce small amounts of negative ions and activated
oxygen. Negative ions and activated oxygen help induce sleep and keep the air clean and fresh.