Sterilray manufactures Far-UV disinfecting systems for air, surface and product disinfection. 222nm light is the only technology that does not rely on air exchanges to destroy pathogens in the air. Far-UV is safe for occupied spaces. There are now dozens of studies that have proven the efficacy and safety of Far-UV. Far-UV Advantages: • 30,000 hour lamp life warranty • Lamp does not contain mercury or other dangerous materials. • Not affected by temperature or humidity. • Engineered so as not to produce ozone. • There are no electrodes to wear out. • Safe for Human xposure • Power level is adjustable. • Made in the USA • Rechargeable.