While ultraviolet (UV) light is harmful for human skin, it could be a new tool in the fight against airborne allergies. A study recently published in the journal ACS ES&T Air found that UV light can disarm common indoor allergens in only 30 minutes. How UV light can eradicate allergensUV light could be the answer. Earlier studies have shown that UV light can kill airborne microorganisms, including the COVID-19 (SARS-CoV-2) virus. This less-intense alternative of UV light is considered safer since it does not penetrate deep into cells.