far ultraviolet, far uvc sanitizer, uvc far light has always been market-oriented and scientific development as the guide, deepening reform and innovative development. As an active and positive enterprise, we have the responsibility and obligation to assume the responsibility to our customers, partners, peers and other stakeholders with cooperative relationship. Our reliable and stable performance and high-quality products have won the trust and support of new and old customers. It is our company's long-term development goal to create the industry brand and strive to be the industry pioneer. We insist on quality improvement and innovation, implement brand strategy, and provide customers with reliable quality assurance with advanced technology and scientific management. We sincerely welcome friends from domestic and foreign countries to visit and negotiate business!

FEATURES

1. Easy to be integrated

2. Pure 222 nm

3. Environmentally friendly/mercury-free

4. Safe disinfection technology

5. Wide operating temperature

6. Instantaneous on/off

7. Spectrum testing by the third-party

8. EPA, ISO9001, CE certified

SPECIFICATIONS

1. Model no.: UWM222-40W

2. Peak Wavelength: 222nm

3. Size: 245*78*44mm

4. Input Voltage: 24vDC

5. Power: 40w

6. Beam Angle: 60°

7. Radiation Intensity: 120μw/cm²(50cm)

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

9. Materials: light tube, aluminium housing, quartz glass filter

10. Lifespan: 4000 hours

Applications

Air disinfection

Surface disinfection

Water disinfection

Room sanitisation

Sanitisation for public places

Germicidal Efficacy and Mammalian Skin Safety of 222-nm UV Light

It has been proved that 207-nm ultraviolet (UV) light has similar antimicrobial properties as typical germicidal UV light (254 nm), but without inducing mammalian skin damage. The biophysical rationale is based on the limited penetration distance of 207-nm light in biological samples (e.g. stratum corneum) compared with that of 254-nm light. Here we extended our previous studies to 222-nm light and tested the hypothesis that there exists a narrow wavelength window in the far-UVC region, from around 200–222 nm, which is significantly harmful to bacteria, but without damaging cells in tissues. We used a krypton-chlorine (Kr-Cl) excimer lamp that produces 222-nm UV light with a bandpass filter to remove the lower- and higher-wavelength components. Relative to respective controls, we measured: 1. in vitro killing of methicillin-resistant Staphylococcus aureus (MRSA) as a function of UV fluence; 2. yields of the main UV-associated premutagenic DNA lesions (cyclobutane pyrimidine dimers and 6-4 photoproducts) in a 3D human skin tissue model in vitro; 3. eight cellular and molecular skin damage endpoints in exposed hairless mice in vivo.

Comparisons were made with results from a conventional 254-nm UV germicidal lamp used as positive control. We found that 222-nm light kills MRSA efficiently but, unlike conventional germicidal UV lamps (254 nm), it produces almost no premutagenic UV-associated DNA lesions in a 3D human skin model and it is not cytotoxic to exposed mammalian skin. As predicted by biophysical considerations and in agreement with our previous findings, far-UVC light(40w 222nm uv light module far uv lamp effectively killing germs and virus) in the range of 200–222 nm kills bacteria efficiently regardless of their drug-resistant proficiency, but without the skin damaging effects associated with conventional germicidal UV exposure.

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