Kuyang'anitsitsa mkhalidwe mosalekeza
Poyang'anitsitsa nthawi zonse, mpweya wamkati wa nyumbayo umayang'aniridwa mothandizidwa ndi masensa. Zomverera nthawi zonse zimayang'anira malo:
- kutentha
- chinyezi chachibale
- kuchuluka kwa carbon dioxide
- kuchuluka kwa zinthu zomwe zimasokonekera komanso tinthu tating'onoting'ono
- kusiyana kwamphamvu pakati pa malo ndi mpweya wakunja.