Menyako ea mollo oa tšepe ea khoebo e ka fanoa ka lifensetere, li-shutter, li-shutter tsa ventilation, joalo-joalo ha ho hlokahala, ‘me phekolo ea holim’a metsi ke ho fafatsa ka electrostatic. Botenya ba mamati a mollo oa tšepe bo arotsoe ka litekanyetso tse tharo: A, B, C, ‘me e na le ts’ebetso e ntle ea ho koala molumo le ts’ebetso ea ho kenya mocheso. Rea u amohela ho buisana le rona.