1. Natural ventilation: By setting skylights, doors, windows or vents, smoke and odor in the workshop can be exhausted by natural airflow.

2. Mechanical ventilation: exhaust fan, exhaust fan or mechanical equipment of smoke exhaust system are used to extract dirty air and smoke in the workshop to achieve smoke exhaust effect.

3. Air purification: by installing air purification equipment, air purifier and purification spray device, the air in the workshop is filtered and purified to remove smoke and odor.