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Multi-Tech S3500 Air Purifier 
Multi-Tech S3500 Air Purifier Discounts Apply !
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Price: $149.00

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  • Overview
  • How It Works
  • Gov Studies
  • Pollutants
  • Specs
  • Reviews

Six Proven Air-Cleaning Technologies:

True, Permanent HEPA Filter for the most effective protection against dust & allergens. Recommended by Department of Homeland Security and U.S. Centers of Disease Control. Furthermore, the HEPA is washable, so it does not require replacement, substantially reducing replacement costs.* (More Info)
Germicidal UV Lamp to destroy micro-organisms such as germs, viruses, bacteria and fungi (such as mold toxins). Recommended by U.S. Centers of Disease Control. (More Info)
Activated Carbon Filter for chemicals, gases odors and cigarette smoke. The most absorbent filter material known to man. (More Info)
Ionizer which disperses negative ions to seek out and remove particles & bacteria from the air. Proven by government studies to be effective, and to enhance performance of filters. (More Info)
Photocatalyst Oxidation Filter which effectively reduces chemicals, bacteria and odors. (More Info)
Anti-Bacterial Pre-Filter for larger particles, lengthening the life of the other filters.

Other Important Benefits:

Low Replacement Costs even when considering there are 6 purification stages, especially since the HEPA is a permanent, washable filter. If you choose to eliminate replacement costs, the S3500 will still operate with only the permanent HEPA and ionizer (the ionizer does not require replacement either).
Large Coverage Area as a result of the extremely powerful fan. Covers up to 600 square feet.
Extremely Powerful Fan (210 Cubic Feet per Minute - cfm). One of the most powerful fans available to maximize number of air exchanges, increasing air filtration capacity.
Extremely Quiet Operation ensuring peace and quiet while running, even with its powerful fan. Includes "Ultra-Quiet" fan setting for virtually silent operation.
Low Energy Usage despite the mighty power of the Multi-Tech S3500 (Just 85W power usage on high!). Includes the quiet "Low" fan setting for optimal energy savings.

Also Features:

LCD Panel with Advanced Graphics:

Excellent Dust Removal and Much More.

Like many expensive air purifiers, the Multi-Tech S3500 is highly efficient at removing dust particles, as a result of its 99% effective HEPA filter, and highly powerful fan. Unlike most air purifiers in this class, the S3500 also includes multiple other technologies to address all the other pollutants that are typically found indoors.

This combination of technologies results in several unexpected benefits, such as:

Destruction of Micro-Organisms. Very few air purifiers address the problem of micro-organisms. Airborne germs and viruses are commonly present in indoor environments, circulating sickness among occupants. Other micro-organisms can increase the risk of sickness, such as mycotoxins from indoor mold growth. Furthermore, dust is often loaded with bacteria. The S3500 includes a jumbo germicidal UV lamp for a larger dead zone for micro-organisms such as germs, viruses, bacteria and fungi. In addition, this germicidal lamps sterilizes particles trapped in the filters, which can otherwise reproduce and recirculate with other air purifiers. The S3500's photocatalytic filter also helps to neutralize micro-organisms, such as bacteria.

Removal of Chemicals, Fumes and Gases. Most air purifiers are equipped with a way to trap dust particles and other allergens. However, very few are able to take care of chemical fumes that are common in households today. Chemicals fumes are emitted by building materials, paint, carpet, and several other sources. Chemicals are also added to the environment frequently through the use of household cleaners. Activated carbon filtration is the most effective filter available at trapping chemicals. The S3500 also includes a photocataytic filter to add to its effectiveness against chemicals.

Odor Reduction. This is another area that air purifier makers often neglect. Your common dust removal filters will not reduce odors, a common indoor air quality problem. Activated carbon filters and photoycatalysis filters are effective against odors, which may be chronic (cigarette smoke or mold) or just a temporary problem (cooking) in your home or workplace.

Cigarette Smoke. If you have a smoker in your house or place of work, you need multiple technologies to cover all the pollutants associated with cigarette smoke. An ionizer will help to remove the smoke particles themselves, while the activated carbon filter and photoycatalytic filter will address the chemical pollutants and odors.

Ionizer Benefits. Not all high-end air purifiers include a built-in ionizer, but it is becoming more and more common, due to the clear benefits they offer. In a Journal of Hygiene study, negative ions (produced by an ionizer) were found to improve efficiency of filter units. Ozone-free ionizers (such as that found in the Multi-Tech S3500) do not present any potentially negative side effects at all. Plus, negative ions can remove airborne pollutants where they are floating, without requiring they pass through the air purifier. The S3500's powerful fan effectively circulates these air-cleaning negative ions throughout the area.

* The washable HEPA of the S3000 does not require replacement. When dirty, simply vacuum and reuse. Although replacement is not necessary, you can replace the HEPA every two years for optimal performance.

How It Works:

Pre Filter. The air first enters pre filter, capturing the largest particles, which enhances the durability and performance of the other filters.

High-Efficiency HEPA Filter. The most effective type of air filter at capturing dust, allergens and other solid particles (including bacteria). HEPA filters are recommended by the U.S. Department of Homeland Security. The S5000 uses a permanent, washable HEPA, so it does not require replacement. (More Info)

Activated Carbon Filter. The best type of air filter for trapping chemicals, gases, odors and cigarette smoke. According to Penn State Dept. of Aerobiological researchers, carbon filters serve to remove odors, volatile organic compounds (VOCs) and chemicals that other filters cannot. (More Info)

Photocatalytic Oxidation Filter. This filter is coated with titanium dioxide, which produces highly reactive ions and electrons when combined with the UV light from the S3500's UV lamp. These highly reactive ions attach to chemical molecules, bacteria and odor-causing compounds, destroying them through oxidation. Independent tests by research scientists have proven photocatalytic oxidation to by highly effective. (More Info)

Germicidal UV Lamp. The most effective way to destroy micro-organisms, such as germs, viruses, fungi (such as mold) and bacteria. Also destroys micro-organisms including those that are trapped by the HEPA air filter, preventing them from reproducing and recirculating through the room. UV lamps are recommended by the U.S. Centers of Disease Control. (More Info)

Safe and Effective Ionizer. Circulates trillions of negative ions to neutralize floating pollutants throughout the room. A Journal of Hygiene study found negative ions to improve efficiency of filter units, and multiple studies (including those by the U.S. Dept. of Agriculture) have found ionizers to be highly effective against dust, bacteria, etc. Finally, the S3500's ionizer is proven to be safe, producing virtually no ozone whatsoever. (More Info)

* The washable HEPA of the S3000 does not require replacement. When dirty, simply vacuum and reuse. Although replacement is not necessary, you can replace the HEPA every two years for optimal performance.

U.S. Government Recommendations:

The U.S. Government recommends technologies used in the Multi-Tech S3500 air purifier.

U.S. Centers of Disease Control (CDC) recommends air purifier with both HEPA Filter and UV Light. The CDC also recommends UV lights in homeless shelters to prevent the spread of disease, particularly TB (tuberculosis).

Dept. of Homeland Security recommends HEPA air filters, along with a pre-filter to preserve the life of the HEPA filter.

The U.S. Dept. of Agriculture found negative ions (ionizers) to be highly effective against dust and bacteria in recent studies.

U.S. Department of Energy found that photocatalytic oxidation air purification destroyed VOC chemicals at a significant rate, even at high air flow rates.

More Detail About U.S. Government Recommendations >>

 Pollutant Types Removed:

Type Rating Type Rating


















Pollutants Removed By the Multi-Tech S3500 Air Purifier

Just a partial list of the many types of pollutants removed.

Dust/Dust Mites. The Hepa air filter in the S3500 is highly effective at capturing solid particles such as dust and dust mites. According to the Journal of Hygiene, ionizers help to increase the efficiency of filters, by causing airborne particles to conglomerate, making them easier to capture. Plus, negative ions also cause airborne particles to precipitate out of the air you breathe, and have been found to be extremely effective at controlling dust by U.S. Dept. of Agriculture studies. UV light can be deadly for dust mites.

Bacteria. Many bacteria are effectively captured by the Hepa air filter, as well as the anti-bacterial pre-filter (which also disinfects bacteria). The germicidal UV lamp serves to disinfect the bacteria trapped by the Hepa filter. Plus, according to studies by the U.S. Dept. of Agriculture, ionizers/negative ions are extremely effective at reducing airborne bacteria. The S3500 also includes a photocatalytic oxidation filter, which has proven to be effective at destroying bacteria.

Pollen and Other Allergens. Hepa air filters are commonly recommended filter for allergens, and are generally considered the most effective filter for allergens. Ionizers/negative ions increase the efficiency of filters by causing airborne particles to conglomerate, making them easier to capture. Plus, negative ions also cause airborne particles to precipitate out of the air you breathe.

Mold/Fungi. Mold spores are effectively captured by Hepa air filters, especially with the help of ionizers/negative ions. UV light is deadly against the microbiological toxins associated with mold. The activated carbon filtration and photocatalytic oxidation technologies used by the Multi-Tech S3500 are effective against mildew smells.

Cigarette Smoke. The carbon air filter in the S3500 absorbs smoke particles and the toxic chemicals associated with cigarette smoke. With the help of the photocatalytic oxidation filter, it also helps to reduce or eliminate odors from cigarette smoke. The ionizer/negative ions also remove smoke particles from air.

Chemicals and VOCs (Volatile Organic Compounds). The carbon air filter is very effective at absorbing chemicals and gases. Also, photocatalytic oxidation has proven to be effective at breaking up chemical compounds. Furthermore, the ionizer also helps to neutralize chemical fumes.

Germs/Viruses. The UV light is deadly against micro-organisms such as germs/viruses, and highly effective at destroying them as they pass by the UV lamp. Negative ions have also been known to help to neutralize viruses.

Odors. Both the photocatalytic oxidation filter and activated carbon air filter are effective at eliminating or reducing strong odors.

Carbon Monoxide. A statistically significant decrease of CO values was found with an ionizer activated. This was discovered by researchers at Brompton Hospital in London, and published in European Respiratory Journal.

Multi-Tech S3500 Specifications:

  • Voltage: 100-120 VAC, 60Hz
  • Power Consumption: 85 Watts (Highest Fan Setting)
  • UV Wavelength: 254 nm (germicidal wavelength)
  • Air Volume: 210cfm (Highest Fan Setting)
  • HEPA Filter Removal Rate: 99% at 0.3 microns
  • Dimensions (in): 15.75 x 5.5 x 16.54
  • Weight (lbs): 11
  • Applicable Area: Up to 600 sq. ft.



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