The award-winning Laerdal Suction Unit is the ultimate in high performance. It's the rugged, silent type you can take anywhere - out of the hospital or in. Unique one-touch testing, built-in charger, and full 5-year warranty validate its claim to fame as the one the beat. Raising the standard for EMS suction units. The LSU features industry first device diagnostics, a "no-tools" replaceable battery, built-in charger and an integrated vacuum regulator/power on knob. All this in a rugged "bump-proof/splash-proof" design that is very quiet. Features: Dependable... Device diagnostics check all critical system functions Easy to use.. Single large knob operates the unit Variable vacuum... with 5 commonly used Oropharyngeal/Tracheal settings High performance... Capable of > 30 lpm at 500+ mmHg setting Rugged... Full "Rib Cage" design protects canister while suction unit meets stringent splash-proof (IP34D) and bump-proof requirements Quiet... Extremely quiet when operated at low vacuum levels. This allows the unit to be particularly effective in a hospital environment or any other setting that demands quietness. At 500+ mmHg the db(A) level is 57 or less. Flexible... Comes with a built-in AC/DC power transformer. The unit can be operated or charged directly from AC/DC mains or an optional wall bracket. Ready, Willing and Able:The only suction unit that offers one-touch testing to quickly check all functions: occlusion, vacuum build-up efficacy, maximum achievable vacuum level and air leakage. Full range of tracheal and/or oropharyngeal vacuum levels set by a single knob that doubles as a power switch. High night/day visibility LEDs indicate all critical system functions. Contents: Suction Unit AC and DC Cords Canister with Patient Tubing Battery Vacuum Tubing Directions for Use