This oil mist exhaust filter retains oil mists and can be fitted without additional accessories on the Leybold D4B and D8B rotary vane vacuum pumps. Complete with filter element inserts (FE 4-8) having a separation efficiency over 99 percent. The AR is an exhaust filter with a lubricant feedback controlled by a float-operated valve. It is attached to the exhaust adapter of the respective TRIVAC B pump. The easy interchangeability (alternative vertical or horizontal connection) of the intake adapter and the functioning of the intake adapter valve are unaffected by the installation of the AR. The oil mist and aerosols are trapped and eliminated in the filter element. Volatile substances and aromatic substances pass through the filter. Depending on the nature of the volatile substances and aromatic substances, it is advisable to connect an additional exhaust line. For complete specifications and advantages to the user, download data sheet see below. (AVAILABLE DOWNLOADS)