Extraction removes process smoke from the enclosure or work area. Air assist directs air at the cut. They are different systems: strong air assist does not prove that fumes are being removed, and an extraction fan sound does not prove that air reaches the outlet.
Trace the complete path with the laser off
- Identify the intake near the work area, enclosure gaps intended for replacement air, duct, fan, filter stages and final outlet.
- With power isolated as the manufacturer requires, inspect for a crushed hose, loose clamp, blocked grille, full filter, accumulated debris or a damper in the wrong position.
- Confirm that the outlet terminates where the machine manufacturer and local requirements allow. It must not simply return unverified process fumes to the occupied room.
- Start extraction without laser output. At a manufacturer-approved intake point, use a light tissue strip or the machine's airflow indicator to confirm direction. Keep loose items away from fans and motion parts.
- Record the normal sound, indicator value or tissue response. This is your baseline for later comparisons.
Do not create smoke or use an unknown material merely to test extraction.
Controlled process check
Use a small, already verified material and a known low-risk file. Supervise continuously. The expected result is that visible process smoke moves consistently toward the extraction path and does not leak into the room. Air assist should clear the cut area as intended without spreading smoke out of an open enclosure.