The FTI sleeve filter is designed to remove wood particles and dust from the air. The filter is equipped with a vibromotor that performs effective filtering elements from dust. The material separated from the air is discharged from the filter using a special agitator and rotary valve. The FTI sleeve filter is made from 1.5-3 mm galvanized steel panels, which makes the structure very durable. In the filter housing using spring rings, sleeve filters are applied, which are made of antistatic polyester material.