This is the pair of UV blue light emitting spheres that disinfect shoes, refrigerators, and humidifier reservoirs.
Does UV Light Kill Mold? - Sensorex Liquid Analysis Technology
Orb - Mold and Germ Destroying Blue UV Light Balls
Orb Antimicrobial UV Light Ball Review: Does it really work?
Orb Antimicrobial UV Light Ball Review: Does it really work?
An Allergy Sufferer Tests Six Air Purifiers - The New York Times
COOSPIDER UV Germicidal Lamp w/Remote Control 36W UVC Light Bulb with Base for Basement/Storehouse/Car Sterilization Odor and Mold Removal 3-gear
Ellumi Germ-Killing Shower Light - Best Way To Keep Your Shower Germ and Mold-Free
Mold & Germ Destroying UV Light Spheres
What's an Air Ionizer?
Where do germs go when they're killed? - Quora
Does UV Light Kill Mold?
Upper-Room Ultraviolet Germicidal Irradiation (UVGI)
The Mold And Germ Destroying UV Light Spheres - Hammacher Schlemmer
How to Get Rid of Airborne Bacteria
Best UV Sanitizers for Covid-19: Does UV Light Kill the Coronavirus?