• Air Purifier Unit with Filters
• Plenum Duct Work
• Plenum Section with Filters
• Exhaust Duct Work (5' Maximum)
• Floor Grate Assembly with Filters
• 3 Phase, 5 HP, 230/460V Explosion Proof Motor (Standard)
• Direct Drive, Non-Sparking Fan
• Complete, Balanced Trench with Filters
• 5 Class I Div 2 Light Fixtures (ETL Listed)

Same as DDS-4, without in ground trench, Plus:

• Floor Draft for installations that must stay above ground.

• Optional 15' Extended Air Intake