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Air+Health UV light air purifier
Topic Started: Sep 21 2007, 06:28 PM (213 Views)
AloeGal
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http://www.airhealth.com/techinfo.html

air health™ uv home air sanitizer

Indoor Air: Elevated Concentration of Biological Contaminants
According to the World Health Organization, biological contaminants in indoor air are responsible for over 60% of allergies. Allergy and Asthma sufferers are continually exposed to attacks by mold, bacteria, dust, and spores. Even worse, inhaling viruses and airborne bacteria can cause sicknesses ranging from allergies to tuberculosis, and are in fact, the cause of death to approximately 8.5 million people a year.

An Environmental Protection Agency report states that indoor air can contain up to 70 times more contamination than outdoor air. While indoor air may appear clean, air in a particular room may include hundreds of thousands of contagious bacteria, viruses, fungal spores, and other contaminants.

Common Filter Systems Don't Solve the Problem
Common HVAC filters are designed to trap airborne particulates such as hair and dust. Filters are not designed to trap microscopic organisms. Microorganisms are too small to be trapped in most filter systems. Even high end filters such as High-efficiency particulate absorber or electrostatic are only nominally effective in trapping some airborne contaminants. In some cases, the filter can actually become a breeding ground for germs.

Ultraviolet Light
The sun controls bacteria outdoors by emitting ultraviolet rays. These UV rays are a segment of the sun's light spectrum. UV-C light inhibits reproduction and the growth of many germs including: viruses, fungi, bacteria and mold. The germs are sterilized or killed, making it impossible for them to reproduce. To be effective, UV rays must directly strike the contaminants, and sustain exposure for a particular length of time. This process occurs naturally outdoors in the presence of sunlight. However, this process does not occur indoors. This is why indoor air is significantly more contaminated.

TO REDUCE INDOOR AIRBORNE BACTERIA AND CONTAMINATION, SEVERAL HEALTH AND ENVIRONMENTAL AUTHORITIES ADVISE USE OF AN ULTRAVIOLET AIR PURIFICATION SYSTEM. ULTRAVIOLET TECHNOLOGY IN COMBINATION WITH ANY FILTER IS THE MOST EFFECTIVE MEANS OF REDUCING AIRBORNE BACTERIA AND THEIR ASSOCIATED HEALTH RISKS.

air health
air health brings ultraviolet technology into the home, utilizing any warm air or forced air HVAC system. air health mounts in the main supply or return ductwork, constantly emitting powerful UV rays. The home's air is recirculated over 50 times a day during normal operation of the heating or air conditioning system. Continued exposure to air health reduces airborne contamination, improving the indoor air quality of the entire home.

Installation Location
The best location for air health is over the A/C coil. This will treat the indoor air while simultaneously keeping the coil clean. The moisture on the coil and in the drain pan is a prime breeding ground for bacteria, spores, viruses and other contaminants. If there is no A/C system or the location is not accessible, the optional location is in the return air duct, preferably downstream of the filter. For higher square footage applications, installing two air health units, one over the A/C coil in the supply and one in the return, is ideal for its' cumulative effect.
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Number of Bulbs
Practical factors are:
1) The square footage of the heated/conditioned space
2) The size of the duct


Square Footage Number of Units
Recommended
1000 1
2000 1
3000 2
4000 2



air health Effectiveness
Through laboratory testing *, it was found that a single air health unit reduced the population of the test bacteria up to 90% with only a single exposure to the UV light. Other bacteria and molds will not always have these results with a single pass. Practical application of air health in HVAC systems will expose the air in the building to many passes by the light. This allows for effective reduction of bacteria and mold with high UV energy requirements for sterilization.

Contaminant Kill Rate
The energy required to kill microorganisms is a product of UV light's intensity and exposure time. This energy is measured in micro-watt seconds per square centimeter.

WARNING:
air health BULBS MUST ONLY BE OPERATED INSIDE
METAL DUCTWORK WHERE LIGHT CAN BE ENCLOSED.
NEVER EXPOSE EYES OR SKIN TO UV- C LIGHT.

UV Energy Required for 90% Kill Rate

Bacteria ~ µW-Sec/cm 2
Bacillus anthracis ~ 4,520
Corynebacterium diptheriae ~ 3,370
Escherichia coli ~ 3,000
Legionella pneumophila (Legionnaires Disease) ~ 3,800
Leptospira interrogans (Infectious Jaundice) ~ 6,000
Salmonella enteritidis ~ 4,000
Salmonella typhosa (Thyphoid Fever) ~ 4,100
Shigella dysenteriae (Dysentery) ~ 3,400
Streptococcuc hemolyticus ~ 2,160
Vibrio chloerae ~ 6,500
Serratia marcescens ~ 2,420

Virus ~ µW-Sec/cm 2
Bacteriophage (E. Coli) ~ 6,600
High-efficiency particulate absorbertitis virus ~ 8,000
Influenza virus ~ 6,600
Poliovirus ~ 6,000
Rotavirus ~ 24,000

Yeasts ~ µW-Sec/cm 2
Brewer's Yeast ~ 3,300
Baker's Yeast ~ 3,900

Mold ~ µW-Sec/cm 2
Aspergillus flavus ~ 60,000
Mucor racemosus ~ 17,000
Oospora lactis ~ 6,000
Penicillium digitatum ~ 44,000

* Testing done by Kane Environmental Assays. The test bacterium was Serratia Marcescens ATCC 14756. The test ductwork size was 18” x 18” galvanized ductwork with airflows of 500 and 1000 CFM and the reduction efficiencies of 90% and 66% respectfully.


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Note: air health™ is designed for in-duct mounting only.
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healthybee says:
We used this system to build our own "PionAir" unit. (Thanks Lannie & Rich.) This unit is about 3X larger tha nPionAir. Hubby built a containment system for the bulb. First a metal chimney tube cut in 1/2 lengthwise. A cap on each end with screws to hold the opening on each side in place. Top cap needs a hole cut for the bulb assembly.

IMPORTANT STEP!!!! The interior of the metal tube & caps must be painted with 2 coats Kilz, 2 coats high quality, high titanium dioxide content ceiling white paint (I used Behr as it has the highest content of titanium dioxide). Using a small amount of paint add about 1/4 cup titanium dioxide powder and make a paste. Stipple this paste over the surfaces to create a bumpy surface. (this makes 5 coats of paint.)

Wait for drying betweeen each coat.

NOTE: the Japanese gov't paints the sidewalks of the large cities with titanium dioxide to cut pollution levels!!! When the sun shines (UV light) on the painted sidewalks pollution is minimized.

You can order titanium dioxide from chemical companies or mineral companies. One company is Wellington Fragrance.com. I first ordered a sample form a mineral co. and had enough for 4 of these purifiers!! If you can't find it, let me know, I'll send you some. I also bought from Wellington.

Once this inner tube assembly is done, build a wooden box to fit it in. With a top and bottom flat piece attach spindles or slats all around. Be sure to make a wider slat to cover the openings in the metal tube assembly.

Plug in and smell CLEAN air!!

As another note: This bleached out our blue carpet, but didn't bother the green carpet in a rental house we lived in. If you have blue carpet (or walls), it is imperative to place cardboard under it or make sure the slats have no light showing through.

NEVER LOOK DIRECTLY AT THE LIT BULB!!!!!
Blessings,
AloeGal
You never know why you're alive until you know what you would die for....I would die for You. ~ Mercy Me
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Chellebob
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I wonder if just gettimg the UV Home Air Sanitizer would be enough or if you would need it and the portable air sanitizer? DH and I are shopping for an aur purifier and it's as hard to choose one of those as it is to choose a dr.!

What's the difference in UV light and flourescent light? I thought artificial light... especially flourescent, was bad for you?
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AloeGal
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This particular unit is designed to be installed in your central a/c unit. But I didn't want to drill a hole in that!! So we came up with the surround and Rich (Lannie's hubby) told us about the titanium dioxide coating which is similar to Pion Air.
A good weekend project. Home Depot used to carry these bulb units. They have been discountinued. I have contacted them to see if we could carry in the co-op.

As a note: Co-op has access to PionAir units at discount. Check their site for more info. www.pionair.net or bioactivenutrients.com. Look under Air Purifiers.
Blessings,
AloeGal
You never know why you're alive until you know what you would die for....I would die for You. ~ Mercy Me
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Selahgal
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This reminds of that new thing that Doug had on his show, called PCI-Aire. I couldn't find it online anywhere and I have since forgotten the guy's name who makes them. I'm SURE Doug will have him on again tho!

He'd put the unit in a room and expose all the surfaces he could, open drawers, etc. and this thing would kill most of the 'bugs' on the surfaces! It's also portable. You can unplug it and take it with you to the office or when you're travelling and stay at hotels/motels and everything.
Don't be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all human understanding, will guard your hearts and your minds in Christ Jesus. - Philippians 4:6-7
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AloeGal
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Yes, I can get both from BioActive Nutrients.
Blessings,
AloeGal
You never know why you're alive until you know what you would die for....I would die for You. ~ Mercy Me
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