Trolley yoyezera nyali ya UV iyi imatulutsa UV-C (germicidal, 253.7 nm) kuti iwononge zowononga zamankhwala ndi zachilengedwe.
Amachepetsa kapena kuthetsa majeremusi monga nkhungu, mavairasi, mabakiteriya, bowa ndi nkhungu spores kuchokera mumpweya wamkati wa nyumba, maofesi ndi nyumba zamalonda, kuonetsetsa kuti mpweya wabwino wamkati ukhale wapamwamba.