Lighting for Human Health - Ultraviolet Lighting to purify the air in your home or office.

Purifaire Antiviral System™ and Office Inoculation™ achieve disinfection through the use of short wave ultraviolet light (UV-C) at 254 nanometers (nm). This process is called Ultraviolet Germicidal Irradiation or UVGI. UVGI was first successfully employed in 1909 to disinfect the municipal water system in Marseilles, France. Since that time UVGI has been endorsed by many scientists and organizations but has been commercially limited by products that did not lend themselves to ease of applications as well as lack of awareness in the broad marketplace.

Proven Effective:
These recent references exhibit the power of the technology.

“Ultraviolet radiation in the range of 2.250-3.020 Angstroms (225 to 302 nm) is lethal to microorganisms.” Federal Emergency Management Association (FEMA) in their publication Reference Manual to Mitigate Potential Terrorist Attack Against Buildings.

UVGI has proven to result in:

20% reduction in worker sickness
40% drop in breathing problems
60% reduction in mucosal complaints

“Effect of ultraviolet germicidal lights on workers health and wellbeing: double blind multiple crossover trial”, The Lancet, November 29,2003.

Safe:
All Lighting for Human Health™ products are ozone neutral*. Ozone is an unstable version of oxygen denoted by O3. While ozone is indeed a proven disinfectant, it can be very unhealthy for you to breathe. The unstable 3rd atom of oxygen readily attaches itself to anything with which it can react, including your lungs and body tissue, which causes oxidation. This is the very thing anti-oxidants such as vitamin C are trying to prevent. In fact, ozone is toxic, the World Health Organization has established 60 ppb (parts per billion) as the 8 hour reference period exposure limit, and in high concentrations ozone can even cause fatality. Even at low concentrations, sensitive individuals can experience unpleasant symptoms such as headaches and nausea.

Unfortunately, many electronic products, almost all ionizers, many UV lights, and even some air purifiers produce ozone. Lighting for Human Health™ takes care to filter out ultraviolet light below 200nm, the region where ozone is produced.

* Testing over a 16 hour test period has measured ozone concentrations lower than that found in the base line (background) levels.

Another safety issue to consider is people can experience eye or skin irritation if the fixture is not properly installed.

Ultraviolet light in the germicidal range (UV-C) should not be viewed by unprotected eyes. It can cause conjunctivitis, a painful, although not permanently damaging, condition of the eye. It may feel as if someone has thrown sand into your eye. To avoid this, all Lighting for Human Health™ products are designed with precautions to avoid any user exposure.

The Purifaire Antiviral System™ for homes is designed to be installed in your air handling system and has safety switches to not power the device until it is safely enclosed. DO NOT BYPASS the SAFETY SWITCH!

The, Office Inoculation™ commercial products use parallel plates and reflectors to collimate the UV into a beam pattern that projects above average human eyes. Resultantly, when properly mounted, they are designed to limit any possible exposure to less than 0.2 microwatts per square centimeter (µW/cm2), the NIOSH R.E.L. (recommended exposure limit) weighted for 8 hours of continuous exposure. Nevertheless, caution must be taken to properly mount the devices according to the instructions enclosed with the product.