Mekotla ea filthara ea lerōle ka kakaretso e sebelisoa tsamaisong ea tlhoekiso ea li-precipitator tsa motlakase oa liindasteri kapa ba bokellang lerole. Li sebelisoa haholo-holo ho sefa ntho e itseng moeeng e fetang ka har'a precipitator ea electrostatic kapa mokelli oa lerōle, 'me e ka tlosa lerōle, libaktheria, moriri le litšila tse ling moeeng, kahoo e etsa bonnete ba hore ts'ebetso e tloaelehileng ea precipitator ea electrostatic kapa mokelli oa lerōle e sebetsa hantle.
Mekotla ea ho sefa lerole ke sefe se sebelisoang hangata. Li entsoe ka mefuta e fapaneng ea lisebelisoa tse fapaneng, ka kakaretso li arotsoe ka lesela la k'hothone, polyester, polyester/nylon, -lisebelisoa tse phahameng tsa "polyester filter", joalo-joalo. Lesela la k'hothone le na le ts'ebetso e fokolang ea ho sefa 'me haholo-holo le sebelisoa ho sefa likaroloana tse kholo moeeng; polyester le polyester / nylon li na le ts'ebetso e ntle ea ho sefa 'me li khona ho sefa litšila tse kang moriri le lerōle ka nepo; 'me lisebelisoa tsa sefa tse phahameng{{3}tse nang le khatello e phahameng ea polyester li na le ts'ebetso e ntle ka ho fetisisa ea ho sefa 'me li ka sefa likaroloana tse nyane, esita le libaktheria, livaerase le likokoana-hloko tse ling.
Ntle le moo, mekotla ea ho hloekisa lerole le eona e ka sebelisoa lisebelisoa tsa ntlo, joalo ka li-vacuum cleaners, li-hood hoods, joalo-joalo, tse ka tlosang lerōle, moriri, lerōle le litšila tse ling moeeng o ka tlung ka nepo, ho etsa hore moea o hlaphoheloe hape o bolokehe.
Ka kakaretso, tšebeliso ea mekotla ea sefahla sa lerōle e pharaletseng haholo. E ka sebelisoa tsamaisong ea ho hloekisa ea ba bokellang lerole la motlakase oa indasteri kapa ba bokellang lerole, hape e ka sebelisoa lisebelisoa tsa malapa ho fa batho tikoloho e hloekileng le e phetseng hantle. Ho khetha mokotla o nepahetseng oa sefahla sa lerōle ho ka lelefatsa bophelo ba tšebeletso ea moqokelli oa lerōle ka katleho, ho nolofalletsa motho ea bokellang lerole ho sebetsa ka mokhoa o tsitsitseng le ka mokhoa o sireletsehileng, ho sireletsa tikoloho le ho fokotsa tšilafalo ea sepakapaka.