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Second Wind

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Second Wind Model 2000

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Recently you installed a "Second Wind Air Purifier," in our home. It has made a remarkable difference in the quality of the air and has cut order, such as pets and cigarette smoke... More Ionic Air Purifier Testimonials

Our new Second Wind air purifier system has eliminated the "Dental Office Smell" associated with dental practices... More UV Air Purifier Testimonials

About 4 years ago I built a new wooden frame house. About 3 months after moving in, I noticed mold & mildew growing around the window frames in the bathrooms. I installed your Second Wind 2000 Model and haven't had problems since... Air Purifier Review

We would like to let you know how pleased we are with the Second Wind Air Purifier we had installed a few months ago. Immediately after installation we noticed a big difference with regards to cigarette smoke, dust, and pollen in the air. The air was noticeably cleaner... Testmonials- Electronic air cleaners and ionic air purifier

I just had to write you to tell you I received on of your purifiers and it WORKS WONDERS! I've had Bronchial asthma all of my life. I'll be 44 this year. My lungs have always been week but, but now they are strong because of you. Thank you! Home air purifier - Compare air purifiers

My 6 year old daughter has numerous allergies - dust, pollen, fungus, smoke, cats, dogs, to name a few. Along with her allergies she also has asthma. Since we put the unit in her room her dependence on her puffers has decreased dramatically. Now only uses her medicine periodically when she has been sick. I just want to say thank for changing her life! Full Testimonials

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How it Works Air Purification
Air Purification is the process by which we remove, destroy or render harmless bio-aerosols and volatile organic compounds in the air we breathe. Filters as noted, are used mostly to remove inert particulate from the air stream. Unfortunately, this accounts for on average only 35% of our indoor air quality problem. Microscopic gases and bio-aerosols are the real danger and can only addressed by other means. Air purification is the single most important defense in reducing harmful contaminants within our homes and places of work, especially in the absence of any outside air exchange.

Photo-Catalytic Process
Adding to method, Second Wind has placed a pure titanium catalyst plate parallel to our high intensity germicidal ultraviolet lamp creating a whole new dimension to the air purification process. This revolutionary addition creates a photo-catalytic oxidizing purification process which has been scientifically proven to destroy and decompose bio-aerosols and chemically oxidize volatile organic compounds into forming primary residual compounds of carbon dioxide (CO2) and water (H2O). Simply stated, the photo-catalytic process involves the chemical change of compounds into acceptable compounds at ambient temperatures by exposing them to free radical molecules of oxygen and hydrogen generated when ultraviolet light reacts with titanium dioxide. More about the Photo-Catalytic Process

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UV Germicidal Protection
The specific energy found in the photons of UV-C ultraviolet light — at a wavelength in the range of 2537 Angstroms — is just the right amount to physically destroy the DNA of microorganisms. UVC penetrates the outer structure of the cell and alters the DNA molecule, preventing replication and causing cell death. Once the pollutant is exposed to the ultraviolet light and the hydroxyl radicals, a photo-chemical reaction takes place. This reaction is referred to as photo-catalytic oxidation. This oxidation process combined with the sterilization properties of ultraviolet light provides a very powerful tool in reducing volatile organic compounds and bio-aerosols. In fact, the oxidation power of hydroxyl radicals is second only to fluorine.

Ultraviolet germicidal irradiation (UVGI) Technology
The use of Ultraviolet germicidal irradiation (UVGI) technology for the neutralization of micro-organisms has been studied and documented since 1930s. This technology has been used for decades in hospitals, health-care clinics, water treatment plants, the food industry and elsewhere to reduce bacteria, mold and viruses. Micro-organisms are specifically sensitive to the effects of invisible light at wavelengths of 2537 Angstroms due to the resonance of this wavelength with molecular structures. In other words, the micro-organisms have a specific sensitivity to this light and therefore suffer a damaging effect to their molecular bond. The DNA structures of these micro-organisms are damaged and are not able to replicate. The UV band of sunlight is the main cause why micro-organisms die in the outside air. The rate of morbidity varies from organism to organism but the total effect remains the same. Our commercial grade UV-C lamps are utilizing a much more concentrated level of UV light than that found in natural sunlight.
Comparative UV Light Intensity in Microwatts per Centimeter Squared at 12 inches
Second Wind 2000 - 1640
Ultravation UVS2036 - 1220
Lennox UV-500 - 760
Second Wind 1000KCS - 320
Sanuvox R3500X - 263
Honeywell UV100A 1000 - 180
Steile-Aire 20-inch lamp - 180
Field Controls UV Aire UV-18 - 80
The results speak for themselves!

home air purifier Bio-aerosols comprise of microscopic live particulate such as spores, pollen, bacteria and viruses. Bio-aerosols present the greatest threat to our health. They are often airborne living for days at a time. They also may exist in fluids or on solid surfaces, even our own skin. You will never totally eliminate your exposure, but incorporating a Second Wind Photo-Catalytic Air Purification System into your home or place of work will create one dependable line of defense against indoor airborne contact. Properly designed UV system installations have proven highly effective in hospitals, schools, etc. Second Wind ultraviolet germicidal lamps are 253.7 nm of light, optimal for air and surface disinfection.

home air cleanerSecond Wind uses a metal catalyst of Titanium to create the PCO process. Titanium naturally has a very thin later of of oxidized film on it called Titanium oxide (TiO2). The TiO2 film has a high refraction ratio and when it is irradiated with UV light, less than 385 nm, the band gap energy (the level of energy photons needed to be able to free electrons from their atomic bonds is exceeded. What is created are electron /hole pairs, hydroxyl radicals (OH), thus attracting molecules (such as volatile organic compounds VOC's or bioaerosols) to the catalyst (Titanium).

The volatile organic compounds are oxidized by a reaction that takes place during this process due to the fact that the OH radicals need to attach themselves to something, and the contaminate is absorbed at the catalyst surface. PCO will also kill and decompose any of the absorbed bioaerosols. “One effective method to destroy dilute concentrations of organic and chlorinated organic pollutants in air is heterogeneous photocatalytic oxidation (PCO), which uses a semiconductor catalyst such as TiO2 and near-UV radiation to decompose contaminates...” “The large number and variety of chemicals successfully treated by PCO indicates potentially broad range of application.”

During the past decade, Second Wind has been a pioneer and leader in the development and manufacturing of ultraviolet air purification equipment and technologies. We have exhaustively tested our products to insure that we offer you, our customer, dependable solutions to indoor air pollution. To understand the significant role Second Wind Air Purifiers play in solving many of the indoor air quality issues that we face today, you must first understand the basic fundamentals and physical makeup of air pollution.

Site pages outline in easy to understand language, the components and terms used to describe poor indoor air quality. Much of the dangers found in our homes and places of work often can't be seen and may have no detectable odor, unfortunately these silent invaders are responsible for all types of allergies and disease, which for many results in a poor quality of life and sometimes even death. Few of us realize that items such as laundry and dishwasher detergent, polishes, paints, wood based building material, carpets, cosmetics, etc., generate measurable air pollutants.

Listed below are the categories that pollutants fall into:

1. Particulates: dust, smoke, etc.

2. Bioaerosols: micro-organisms such as viruses, bacteria, mold, etc..

3. Volatile Organic Compounds (VOCs): chemical or odor causing gases etc.

Click on the above pages for more detail and definitions.

Of the three categories of contaminants mentioned above, the Center for Disease Control has reported that bio-aerosols and volatile organic compounds combine for over 65% of our indoor air pollution and are the main contributors or causes of allergies, asthma, respiratory problems and general poor health.

The Proof
home air purifierElectronic air cleaners work by charging the large dust particles passing through them with an electronic charge, either positive or negative. The particles are than collected on oppositely charged metal plates. With PCO, after the VOC's and bioaerosols are attracted to the titanium, they are come into contact with the OH radicals which change the contaminants molecular structure. PCO will kill and decompose absorbed bioaerosols, as well as toxic VOC's and the odors they produce. Now that PCO technology can be integrated into new and existing heating, air conditioning, and ventilating systems everyone (even the most chemically sensitive) have an effect process for removing and destroying low-level indoor air pollutants including mold, bacteria, viruses, and fungi.

Independent Tests
Photo-catalytic oxidation (PCO) technology has been proven to be an effective process for reducing and even destroying many indoor airborne pollutants. Industry Canada, the EPA, the University of Florida, the American Lung name a few, have published information on their web sites confirming the positive affects of using PCO for improving our indoor environment.

View the results of our Dental Office Airborne Contamination Study

The first 3 charts below contain University test results for the photo-catalytic reduction and control of Toluene, E.Coli, and Yeast. The reason for choosing these particular pollutants for testing, was based on the fact that their chemical / biological composition or characteristics make them reliable as models for determining the photo-catalytic effect on similar chemical and biological pathogens. All experiments were conducted in duplicate to certify their accuracy.
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Note: Second Wind Air Purifiers have been tested effective in the destruction and reduction of bacteria viruses and fungus under various conditions. The effectiveness of our devices may vary depending upon the size of the area to be treated and the rate of air circulation. Your results may be higher or lower than those presented here. The health aspects associated with Second Wind Air Purifiers were not investigated by U.L..
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UV Lamps Could Reduce Worker Sickness
By Emma Ross
Associated Press, London
Posted on Fri, Nov. 28, 2003

LONDON - Sickness among office workers in industrialized countries could be reduced by using ultraviolet lamps to kill germs in ventilation systems, new research indicates.

Ultraviolet germicidal irradiation, or UVGI, is sometimes used in hospital ventilation systems to disinfect the air but is rarely incorporated into office or other building ducts because there has been little evidence of a benefit.

About 70 percent of the work force in North America and Western Europe work indoors, and frequently have unexplained health problems such as irritation of the eyes, throat and nose, as well as respiratory illnesses.

In a study published this week in The Lancet medical journal, Canadian scientists found that the technique reduced overall worker sickness by about 20 percent, including a 40 percent drop in breathing problems.

"Installation of UVGI in most North American offices could resolve work-related symptoms in about 4 million employees, caused by (germ) contamination of heating, ventilation, and air conditioning systems," said the study's leader, Dr. Dick Menzies from the Montreal Chest Institute at McGill University in Montreal, Canada.

"The cost of UVGI installation could in the long run prove cost-effective compared with the yearly losses from absence because of building-related illness," he added.

A total of 771 employees from three different office buildings in Montreal were involved with the study.

The ultraviolet lamps were aimed at the cooling coils and drip pans in the ventilation systems of the buildings. The lights were turned on for four weeks, then turned off for 12 weeks. The cycle was repeated three times for almost a year.

The use of the lights resulted in a 99 percent reduction of the concentration of germs on irradiated surfaces within the ventilation systems.

Some weeks, use of the lamps resulted in a 20 percent overall reduction in all symptoms for some workers; a 40 percent reduction in respiratory symptoms and a 30 percent reduction in mucous problems. The benefits were greatest for workers with allergies and for people who had never smoked.

With the lights switched on, the frequency of muscle complaints among nonsmokers halved and the incidence of work-related breathing problems among them dropped by 60 percent.

Wladyslaw Jan Kowalski, an architectural engineer at Pennsylvania State University's Indoor Environment Center, said the study may be a landmark in proving that the technique could be cost-effective in commercial office buildings.

Kowalski, who was not involved with the research, also said the approach could be useful in the broader effort to combat contagious diseases such as flu, SARS, tuberculosis and cold viruses.

"Theoretically, if a large number of schools, office buildings and residences were modified, a number of airborne respiratory diseases could be eradicated by interrupting the transmission cycle," Kowalski said. "Reducing the transmission rate sufficiently would ... halt epidemics in their path."

However, Roy Anderson, an infectious diseases expert at Imperial College in London, said disinfecting ventilation systems by itself would not stamp out outbreaks of contagious respiratory diseases.

"Transport is particularly important - buses, subways, trains and airplanes," said Anderson, who was not connected with study. Disease also spreads through personal contact.

"You've got multiple methods of transmission and for control, you need to address all of them. It's an interesting new approach worth pursuing, but it needs detailed investigation," Anderson said.

The Lancet:
Pennsylvania State University aerobiological engineering site:
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