The DAHLE CleanTEC 51414 Office Shredder destroys confidential information while producing cleaner air. It features an internal filter system that traps up to 98% of harmful fine dust particles, oil-free, hassle-free operation, and Trident Grip jam protection to eliminate frustration. This P-4 shredder produces a 1/8" x 1 9/16" particle size and holds up to 30 gallons of shredded waste. It’s German engineered and to provide many years of trouble-free operation. DAHLE CleanTEC- Breathe easy while using the world's only shredder with a fine dust filter system. This integrated system permanently traps up to 98% of the fine dust and provides a cleaner, healthier work environment. OIL-FREE- Wondering when your shredder was last oiled is no longer a concern with this oil-free, hassle-free shredder. Through clever engineering, this machine maintains peak performance without the aid of oil. JAM PROTECTION- The cylinders Trident Grip design produces three continuous points of contact with the paper, pulling it straight through the cylinders providing unprecedented jam protection. The result is a machine with strength, power and the ability to handle all of your data destruction needs. SMARTPOWER- This shredder automatically powers down after 30 minutes of inactivity. It will appeal to those interested in conserving energy as well as reducing electrical costs.