Our company adheres to the core values of quality first and service winning, and is willing to work closely with colleagues and customers all over the world to promote the development of the 222nm coated filters, H-shaped UV Germicidal Lamp UVC Light for Water Treatment Sterilization, Complete Far UVC Lamps industry. We will provide high-quality and efficient products with continuous innovation and provide the best service for the development and expansion of the market. We advocate all employees to choose green lifestyles that are conducive to environmental protection, such as saving resources and reducing pollution.

FEATURES

1. Environmentally friendly/mercury-free

2. Safe disinfection technology

3. Mini module easy to carry

4. Rechargeable unit

5. Wide operating temperature

6. Instantaneous on/off

7. Large production capacity

8. No degradation in output over the life of the lamp

9. Spectrum testing by the third-party

10. EPA, ISO9001, CE certified

SPECIFICATIONS

1. Model no.: UWF222-2W

2. Peak Wavelength: 222nm

3. Size: 93*88*65mm

4. Input Voltage: 3-5vDC

5. Power: 2w

6. Beam Angle: 100°

7. Radiation Intensity: 600μw/cm²(0cm)

8. Operating Temperature Range: -10°C - 150°C

9. Materials: Quartz glass, Plastic shell, Krcl noble gas

10. Lifespan: 4000 hours

APPLICATIONS

Air disinfection

Surface disinfection

Room sanitisation

Desktop disinfection lamp

207-nm UV Light—A Promising Tool for Safe Low-Cost Reduction of Surgical Site Infections. II: In-Vivo Safety Studies

UVC light generated by conventional germicidal lamps is a well-established anti-microbial modality, effective against both bacteria and viruses. However, it is a human health hazard, being both carcinogenic and cataractogenic. Earlier studies showed that single-wavelength far-UVC light (207 nm) generated by excimer lamps kills bacteria without apparent harm to human skin tissue in vitro. The biophysical explanation is that, due to its extremely short range in biological material, 207 nm UV light cannot penetrate the human stratum corneum (the outer dead-cell skin layer, thickness 5–20 μm) nor even the cytoplasm of individual human cells. By contrast, 207 nm UV light can penetrate bacteria and viruses because these cells are physically much smaller.

To test the biophysically-based hypothesis that 207 nm UV light is not cytotoxic to exposed mammalian skin in vivo.

Hairless mice were exposed to a bactericidal UV fluence of 157 mJ/cm2 delivered by a filtered Kr-Br excimer lamp producing monoenergetic 207-nm UV light, or delivered by a conventional 254-nm UV germicidal lamp. Sham irradiations constituted the negative control. Eight relevant cellular and molecular damage endpoints including epidermal hyperplasia, pre-mutagenic UV-associated DNA lesions, skin inflammation, and normal cell proliferation and differentiation were evaluated in mice dorsal skin harvested 48 h after UV exposure.

While conventional germicidal UV (254 nm) exposure produced significant effects for all the studied skin damage endpoints, the same fluence of 207 nm UV light produced results that were not statistically distinguishable from the zero exposure controls.

As predicted by biophysical considerations and in agreement with earlier in vitro studies, 207-nm light does not appear to be significantly cytotoxic to mouse skin. These results suggest that excimer-based far-UVC light(2w far UVC light far UV lamp rechargeable unit desktop disinfection light) could potentially be used for its anti-microbial properties, but without the associated hazards to skin of conventional germicidal UV lamps.

The company has a group of experienced management, design and manufacturing talents in the Manufacturer Customize Heat Resistance Flat Bottom Quartz Glass Test Tube with Graduation industry. We continuously improve our business model through innovation and constantly improve our business performance through self-transcendence. We do not forget our original intention, remember our mission, and actively fulfill our corporate social responsibility.

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