♦ Ukadaulo waku America USA PSA, umapereka mpweya wachilengedwe
♦ France Anaitanitsa bedi la molecular sieve
♦Teknoloji yapamwamba ya oxygen nebulization
♦Chinsalu chachikulu chokhala ndi mawonekedwe oyenda komanso oyera
♦Kukula kochepa komanso koyenera kugwiritsidwa ntchito kunyumba