hat
b. Nòmalman, yo ta dwe eleman nan filtre dwe ranplase pou chak 1,000 a 1,500 èdtan. Lè aplike nan anviwònman an ostil, tankou min, seramik faktori, moulen koton, elatriye, li rekòmande yo dwe ranplase pou chak 500 èdtan.
eng
b. Normally, the filter element should be replaced per 1,000 to 1,500 hours. When applied to the hostile environment, such as mines, ceramics factory, cotton mill, etc., it is recommended to be replaced per 500 hours.