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Mechanical ventilation

Mechanical ventilation consists of either general mechanical ventilation systems or local exhaust systems.

Employers must:

  • Provide ventilation with sufficient capacity and capability to remove fumes and smoke at the source and keep their concentration in the breathing zone within safe limits as defined in Subpart D of Part 1926, Occupational Health and Environmental Controls.
  • Discharge contaminated air exhausted from a working space clear of the source of intake air.
  • Make sure all incoming air is clean and respirable.
  • NOT use oxygen for ventilation purposes, comfort cooling, blowing dust from clothing, or for cleaning the work area.