Ihe ndị e ji mee kaadị nnwale antigen COVID-19 bụ ihe polymer dịka PVC, PP, ABS, na HIPS. Igwe akara laser UV nwere ike ịka akara ụdị ederede dị iche iche, akara, na ụkpụrụ n'elu igbe na kaadị nchọpụta antigen. TEYU Igwe mkpuchi akara laser UV na-enyere igwe akara aka iji akara kaadị nnwale antigen COVID-19 nke ọma.