- Available Certified ISO Grade Designs: ISO 6, ISO 7, ISO 8
• Type: Adjustable Damper
• Material: Powder-Coated Steel
• Filter Replacement Access: Top Side
• Size: 2'x2'
• Filter Frame Material: Aluminum
• Filter: HEPA
• Motor Type: None
• Airflow: Positive Pressure
• Certified ISO Grade Design: ISO 6
• ISO Rated Air Cleanliness: ISO 5
• RoHS: Compliant
• Unit of Measure: EA