Thick 1.5" H13 HEPA filter, 10 second toolless filter changeMade out of chemical resistant PETG. The use of Isopropyl alcohol and other cleaning agents are not an issue.Washable Fan Pre Filter to extend the life of the HEPA filter.Acrylic draft shield.LED work light.Speed controller with on/off switch.40x25cm rack to raise your samples 75mm to ensure cleanest airflow.Optional FloGuard to protect the HEPA filter from dirt or damage when not in use. Simply clips on and off the front of the unit.The dimensions assembled are 430x345x248