It is not known whether these technologies can effectively combat the spread of coronavirus.
Two major meat processing companies reported that they installed air purification equipment at some of their plants to protect employees from coronavirus.
JBS USA, one of the four largest beef producers in the United States, announced that it has started using ultraviolet radiation to disinfect the air. Tyson Foods, a producer of beef, pork, and poultry, said it was conducting intensive research on ultraviolet radiation at some of its plants.
It is not yet known whether these technologies can destroy coronaviruses.