● Kuthamanga kwa mpweya kumapangitsa kuti mpweya udutse pabedi popanda kunyamula madzi
● Kuzizira kwambiri chifukwa cha zinthu zabwino kwambiri, mapangidwe asayansi, njira zopangira
● Mpweya umatha kuyenda pabedi popanda kukana kwambiri chifukwa cha kutsika kwamphamvu
● Chifukwa cha kutsetsereka kwa mapangidwe a chitoliro chosagwirizana, dothi ndi zinyalala kuchokera pamwamba pa pad, ndi ntchito yodziyeretsa yokha.
● Kukonza kosavuta chifukwa chakuti nthawi zambiri, kukonza kwachizoloŵezi kungachitidwe pamene makina akugwirabe ntchito
Chipinda chozizira cha pulasitiki chimapangidwa ndi polypropylene. Amapangidwa mwapadera kuti azigwiritsa ntchito mapepala oziziritsira mapepala omwe ali ndi zolakwika zovuta kuyeretsa, moyo waufupi wautumiki, ndi zina zotero. Pulasitiki yozizirirapo imakhala ndi moyo wautali wautumiki ndipo imatha kutsukidwa ndi mfuti yamadzi yothamanga kwambiri. Amagwiritsidwa ntchito kwambiri panyumba ya nkhumba pochiza mpweya, kuziziritsa, kuziziritsa mpweya etc.