The Particle 4000 really works. Numerous health studies have shown that Ultraviolet light in a specific wavelength and duration similar to this Air Purifier, is very effective eliminating viruses, bacteria, mold, mildew and fungi by breaking down their DNA, leaving them unable to perform vital functions or reproduce. UV light also is helpful in prevention of secondary allergies related to airborne allergens. However, not all UV air purifiers are the same, nor are all effective. Many make false or exaggerated claims. The Particle 4000 guarantees it.
The ultraviolet germicidal technology destroys germs, bacteria, viruses, and reduces VOCs (volatile organic compounds) and odors. It disinfects the air and inactivates a wide range of bacterial and viral pathogens.
The Particle 4000  is a powerful UV Air Quality Purifier that destroys more than 99% of airborne bacteria and viruses, such as the flu, (including H1N1), multiple Coronavirus strains (including SARS and the common cold), pneumonia, MRSA, strep, TB, measles and the common cold. It  kills bacteria that can make it difficult to sleep, and helps protect those who suffer from respiratory conditions or a weakened immune system by reducing their exposure to harmful pathogens. This Air Purifier effectively reduces odors, indoor pollutants, and volatile organic compounds (VOCs).
The four key factors to the effectiveness of UV light at inactivating airborne pathogens in a room are:

  • UV Light Exposure Time. The dwell time, or length of exposure, of pathogens to UVGI for approximately a half second causes sufficient damage for inactivation.  It is so effective because its  high intensity germicidal Ultraviolet lamps. The Particle 4000 draws contaminants through the kill chamber where the turbulence inside forces contaminants close enough to at least one of the Ultavioler lamps long enough for inactivation..
  • Ultraviolet Intensity and Wavelength. The optimal Ultraviolet wavelength for UV germicidal irradiation (UVGI) is 254 nanometers. The Air Purifier employs high intensity Ultraviolet lamps at 254 nm to inactivate or kill the pathogens as they move through the Air Cleaner.
  • Proximity to the Ultraviolet light. The kill chamber is specially designed to keep harmful bacterial and viruses in close contact to the Ultraviolet light for the appropriate duration for inactivation.
  • Air Changes per Hour (ACH). of an air quality purifier determines how many times the device can exchange the whole volumetric air from a specific sized room in an hour. The Particle 4000 can kill of to 4000 square feet.

Conclusion:  There are many dubious UV air quality purifier products that make exaggerated claims about their ability to kill/inactivate pathogens and the size of the space they can service. Consumer Reports has even warned consumers about companies making unfounded claims.
The Particle 4000 has gone through numerous tests in EPA and FDA certified labs and the results support our claims of effectiveness at inactivating 99% of most viruses and bacteria on first pass. The powerful UVC light in every Purifier processes the air in an 4000 sq. foot room three to six times per hour to help reduce your exposure to pathogens and keep it fresh and safe for you and your loved ones.
Myth – UV air purifiers cannot kill bacteria and viruses
Fact –The effectiveness of UV light at inactivating viruses and bacteria has been well documented scientifically for decades. In fact, the CDC recommends UV light as a supplemental hospital infectious control method for hospitals on pathogens such as.
Myth – bacteria and viruses aren’t exposed to UV lights long enough to kill them
FactMOST UV air purifiers blow air quickly past UV lights without sufficient exposure time and proximity to inactivate the harmful pathogens. Many also use UV lights that are too weak to be effective. However, The Particle 4000 uses a chamber that instantly kills germs, resulting in inactivation of more than 99% of pathogens on first pass and reduction in VOCs and odors.
Myth: HEPA air filters are adequate against bacteria and viruses.
Fact: Many dangerous viruses are smaller than 0.1 micron and can pass through the typical HEPA filter. HEPA filters trap, but do not necessarily kill live pathogens. We use a hepa filter with a Ultraviolet light to kill all viruses, bacteria and fungal spores over time.