Collection: 254nm Bandpass Filter

UV light at wavelengths of 254 nm is known for its high germicidal effectiveness and ability to destroy the DNA and RNA of microorganisms, rendering them unable to replicate or infect. This makes it a powerful tool for disinfection and sterilization. It is historically the most widely used germicidal wavelength, typically emitted by low-pressure mercury vapor lamps. Recent developments also include UV-C LEDs emitting between 255 and 280 nm.

Applications for 254 nm UV light include:

• Water Treatment and Purification 254 nm UV light is used in water treatment facilities and systems. It effectively eliminates harmful bacteria, viruses, and parasites to ensure safe drinking water. It is applicable in water treatment plants, for drinking water, and in wastewater treatment. The UV lamp typically does not contact the water directly but is housed in a quartz glass sleeve or mounted externally.
• Air Treatment and Purification This wavelength is used for air disinfection and purification. It can sanitize air, neutralize airborne pathogens, and reduce the risk of infections in various settings. Specific applications include air purification in hospitals, laboratories, and other areas with a high risk of airborne infection, as well as use in HVAC systems. Upper-room UV-C luminaires, when correctly installed with shielding, can safely operate in rooms with people present.
• Surface Disinfection and Sterilization 254 nm UV light is effective for disinfecting and sterilizing surfaces. This includes sterilising surfaces in medical facilities and laboratories, decontamination of medical equipment and surfaces in healthcare settings, and sterilising surfaces of food containers and processing equipment in the food and beverage industry. Studies have demonstrated its effectiveness for environmental cleaning of plastic, steel, and wood surfaces to inactivate SARS-CoV-2.
• Healthcare Facilities Extensive use is found in healthcare settings like hospitals, laboratories, and clinics. It serves as a reliable tool for decontamination of surfaces, medical equipment, and air, helping to create a sterile environment and minimise the spread of infections acquired in healthcare settings. It is used for hospital surface disinfection and environmental sterilization.
• Food and Beverage Industry UV light is used in this industry for various applications, including the disinfection and treatment of water, air, and surfaces. It helps prevent foodborne illnesses, maintains product safety, and extends shelf life by sterilising equipment and air within production facilities. It is used in food processing facilities.
• Industrial Applications 254 nm UV light, alongside 365 nm, is mentioned for potential use in efficient curing and bonding of adhesives and coatings in industrial settings, which can improve product quality and reduce production time. Broader industrial applications listed include Aquatics, Aquaculture, Marine, Mining, Oil and Gas, Packaging and Processing, and domestic use.
• Pest Control One source indicates research into the effect of germicidal UV-C light (254 nm) on house dust mites.