After answering the question, can UV light kill coronaviruses, shouldn’t we just rely on sunlight? Wouldn’t the less harmful UVA and UVB suffice to kill the COVID-19 virus? Experts say it’s possible, but one should not rely on it. Today, there’s still no study to ascertain how long coronaviruses must be exposed to sunlight for it to be deactivated.
A study once exposed the SARS virus to UVA for 15 minutes. When the researchers check, they noted that UVA didn’t affect SARS’ infectivity. However, we cannot entirely dismiss the idea as the study didn’t investigate what would happen with longer exposure. Additionally, it also didn’t experiment with UVB.
Can UV light kill coronaviruses? So far, the answer is yes, although you need to take into consideration a lot of things. We need to think of the type of UV light and equipment. So far, UVC lamps are available, but only for bigger establishments.
Currently, there are available portable UVC sterilizers in the market. People use them to sanitize various surfaces such as tables and kitchen countertops. Additionally, you can also use the sterilizers to disinfect day-to-day objects, like cellphones, desktop computers, and even utensils.
In the Philippines, you can see a lot of online shops selling portable UVC sterilizers as well. Some come in the form of lamps, while others are germicidal wands. The wands are highly in-demand as it’s compact and can be carried anywhere. These germicidal wands cost around 2,000 PHP.
Although it’s tempting to buy inexpensive lamps and wands from online stores, be sure to check the credibility of the shop you are buying from.
Learn more about COVID-19 here.