Fast and effective UV disinfection

PureFize® combines an ideally set peak with a broad wavelength spectrum, creating the optimal germicidal effect per mW/UV light and unrivaled high levels of disinfection, +99.999999% (+log8).

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The combination of high germicidal effect and permanent inactivation (no tailing effect) enables a virtually complete eradication result without any regrowth. This makes a significant difference in some applications as it doesn’t require constant irradiance to keep microbial levels at bay.

Perfect germicidal spectrum

PureFize creates UV light with a perfect germicidal spectrum. The spectrum is broad, with a peak wavelength of 262 nm, which is when germs best absorb UV light.*

Exceptionally high degrees of germicidal reduction (log8=99.999999%) can be reached rapidly. Also, the scope of the spectrum prevents any microbial reactivation, which means that all bacteria and other germs that have been irradiated are destroyed beyond repair.

* Kowalski, W. ”Ultraviolet Germicidal Handbook. UVGI for Air and Surface Disinfection.” Springer-Verlag Berlin Heidelberg, 2009, p.17

Matches the germicidal UV range

The microbes’ absorption of different wavelengths of UV light varies based on their physical biology. Most pathogens demonstrate a peak absorption near 260-265 nm. The absorption is generally low for wavelengths below 250 nm and diminishes quickly above 280 nm. For this reason, the 250 nm to 280 nm range is typically referred to as the germicidal UV range.

Low-pressure mercury lamps emit UV light of 253.7 nm. Medium-pressure mercury lamps generate a broader spectrum, between 200 and 280 nm. The wavelength of UV LEDs varies depending on the type of semiconductor used. Most UV LEDs are at 265, 275, 278, or 280 nm. The wavelength spectrum generated by PureFize is broad, overlapping the germicidal UV range, and peaks at 262 (+/- 2) nm (see graph below).


chart of purefize technology

Permanent pathogen inactivation

The unique form of the PureFize spectrum means the radiation efficiently attacks pathogens in several ways, causing damage beyond repair. Regardless of the level of disinfection, those germs that become inactivated by PureFize are inactivated permanently.

PureFize can achieve log8 germicidal reduction, which means it destroys 99.999999% of all microbes, leaving only 1 in a million left.

The fewer microbes left, the longer it takes them to reproduce back to harmful levels. With a log8 reduction, it takes much longer for the remaining microorganisms to reproduce to levels where they may present a danger.

High area coverage

An advantage of PureFize is that one light source covers a relatively large surface. This is partly due to the 100° angular distribution and the 13 mm wide beam it generates. This results in exceptional area and volume coverage. PureFize UV chips are also proven to maintain a higher UV irradiance (in mW/cm2) at longer distances from the light source than conventional UV LEDs. As a result, PureFize creates a higher germicidal effect per mW UV light compared to UV LEDs.

angular disibution

What can PureFize do for you?

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