Ndi kutchuka kwa evaporative air cooler,mpweya wozizirazakhala njira zopatsirana matenda opatsirana.Fumbi ndi mabakiteriya mkati mwa mpweya wozizira wa evaporative ndi pamene simukudziwa.Ngati tisamalira kusamalira tsiku ndi tsiku, titha:
1. Chotsani bwino fungo loziziritsa mpweya;
2. Kuthetsa bwino mabakiteriya opatsirana, kupewampweya wozizirandi matenda a khungu;
3. Chotsani fumbi ndi madontho mkati ndi mapiko akunja mu mpweya wozizira wa evaporative, ndi kuchepetsa mphamvu yamagetsi yosasunthika pamwamba pa piritsi yamapiko;
4. Kutalikitsa moyo wa anthumpweya wozizira;
5. Kupulumutsa mphamvu 15% -20%.