Kufotokozera Kwachidule:

Nsalu yakhungu yoyima imatchulidwa chifukwa masambawo amaimitsidwa molunjika pamwamba pa njanji, ndipo amatha kuchepetsedwa momasuka kumanzere ndi kumanja kuti akwaniritse cholinga cha shading.Ubwino wa nsalu zotchinga zowoneka bwino zidzakhudza kwambiri ntchito yamtsogolo, kotero pogula nsalu yotchinga, tiyenera kumvetsera ubwino wa nsalu yotchinga.Nawa maupangiri ogulira nsalu yotchinga yakhungu:

1.Ngati chinthu chogulidwa chotchinga chowongoka chimatulutsa fungo lamphamvu, zikutanthauza kuti pali zotsalira za formaldehyde pa nsalu yotchinga ndipo sizikulimbikitsidwa kugula;

2.Mutatha kusankha mtundu wa nsalu yowongoka, tikulimbikitsidwa kugwiritsa ntchito nsalu yotchinga yamtundu wowala kuti mugwiritse ntchito nthawi yayitali komanso kuteteza chilengedwe.Makatani owoneka ngati owala amatha kukhala ndi chiwopsezo chochepa cha formaldehyde komanso kufulumira kwamtundu kuposa makatani amtundu wakuda.