Iminyango yomlilo ingahlinzekwa ngamafasitela, izivalo, izivalo zokungenisa umoya, njll. njengoba kudingeka. Ingaphandle lomnyango womlilo lifafazwe nge-electrostatic, futhi amahinge, izingidi zezicabha, izivalo zeminyango nezinye izingxenye ezigqokiwe zilula futhi zihlala isikhathi eside.