POLY PURE UVC Wand is a portable device, which is designed for surface inactivation of microbes. This hand wand can be used at home or in an office setting for a small surface use. The lamp in this hand wand is a low pressure mercury lamp with 9W power output.

UVC Use For Inactivation of Microbes

The use of Ultraviolet C (UVC) radiation for inactivation of microbes has been used with numerous applications since the early part of the 20th century. In the 1930s it was discovered that the use of UVC is an effective method to inactivate airborne microbes and reduce infection risk of pathogens such as measles.  Since then, UVC use has been greatly expanded to include the purification of drinking water, surface and air treatment, treatment of fruits, vegetables, juices, waste water treatment, as well as in the healthcare industry as an effective method of inactivating viruses, bacteria, and other microbes.

Supported by Science

A significant body of scientific research has proven that UVC light can inactivate an extensive list of pathogenic bacteria, viruses, protozoa, etc. The use of UVC radiation offers in an effective and economical way to inactivate the microbes that threaten public health, including Cryptosporidium, Giardia, and the SARS-CoV category of human Coronavirus.

The Fundamentals of UVC

Ultraviolet (UV) radiation is located in the 10nm – 400nm range on the electromagnetic spectrum (see fig. 1).  Because of the low wavelength frequencies, ultraviolet energy falls outside of the visible spectrum of light, and is effective for a wide range of applications, from dermatological use (UVB) to microbe inactivation (UCV).



Figure 1. The Electromagnetic Spectrum

Exposing microorganisms to UV radiation causes them to become inactivated. Exposed to UVC radiation at 253.7nm (low pressure mercury lamp), interrupts the structure of the microbes’ nucleic acids, which make up the DNA and RNA (genetic material of viruses and bacteria). The absorption of UVC energy interrupts the ability of the genetic material to replicate, which prevents the organism from replication, eliminating their ability to infect. (see fig. 2)

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Figure 2: Inactivation of genetic material by UV radiation

Device Specifications



Lamp Power



Low-pressure Hg lamp

Lamp Life

8000 hours

UVC Wavelength


Light Intensity at 2.5cm away from Glass Window

8-14 mW/cm2

Time Needed to Reach 40mJ/cm2 at 2.5cm

5 sec

Time Need to Reach 40mJ/cm2 at 6cm

7 sec

Operating Temperature

20-40 °C

Operating Humidity


Device Features

253.7nm UVC energy optimal for inactivating microbes
Low pressure Hg Lamp
8000-hour lamp life
14 mW/cm2 irradiance
Delivers 40mJ/cm2 at 2.5cm in 5 sec
Ideal for treating small surface areas
Use at the home, office, or when traveling
For use on all surfaces


To avoid eye injury, always wear protective eyewear (included) when in use.  Not for use on skin.


UV Light Distribution


Figure 3. Intensity Distribution at 2.5cm (a) and 6cm (b)


In this figure:

a) shows UV light intensity at 2.5cm away from glass window is in range of 8 mW/cm2 to 14 mW/cm2.
b) shows UV intensity at 6cm away from glass window is within 6mW/cm2 to 10 mW/cm2.

 The UVC irradiance surface area is approximately 45mm x 150mm (2” x 6”)

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Buy the POLY PURE UVC Wand today!