- VOLUME VENTILATION - Ideal for use where high volume clean air delivery is required. Airflow: 3900m?/hr(2295cfm) - 65m????/min.- DIVERSE USAGE - Can be used across multiple industries including but not exclusive to: Marine, roof spaces and building sites, cable/pipe ducts and workshops.- DUCTING SUPPLIED - 5m Ducting is supplied with this product. 10m ducting is available but not included (VEN200AK2).- LIGHTWEIGHT - Lightweight with large carry handle making it easily portable.