12 — MN218-C4 A EnglishSpecificationsFreeStyle FreeStyle 5Dimensions 8.6 in x 6.1 in x 3.6 in(21.8 cm x 15.5 cm x 9.1 cm)10.7 in x 6.6 in x 4.4 in(27.2 cm x 16.8 cm x 11.2 cm)Weight (w/ BatteryPack)4.9 lbs (2.2 kg) 6.7 lbs (3.0 kg)Nominal Sound Level 41 dB(A) at setting 244 dB(A) at setting 348 dB(A) at setting 351 dB(A) at setting 5Flow Settings Pulse Settings 1, 2, 3 Pulse Setting 1, 2, 3, 4, 5Oxygen Concentration 90% oxygen +5.5/-3% 90% oxygen +5.5/-3%AC Power 100-240 VAC, 50-60 Hz (1.75 amps max) 100–240 VAC, 50/60 Hz (2 amps max)DC Power 11–16 VDC (8.0 amps max) 12-24 VDC (15 amps max)Battery Pack Rechargeable, lithium battery Rechargeable, lithium batteryBattery Pack Durations Setting 1 – 6.5 hoursSetting 2 – 3.5 hoursSetting 3 – 3 hoursSetting 1 – 4.25 hoursSetting 2 – 2.5 hoursSetting 3 – 1.75 hoursSetting 4 – 1.5 hoursSetting 5 – 1.25 hrsWarm Up Time 2 minutes 2 minutesOperating Temperature 41°F to 104°F (5°C to 40°C) 41°F to 104°F (5°C to 40°C)Storage Temp. (Unit) -4°F to 140°F (-20°C to 60°C) -4°F to 140°F (-20°C to 60°C)Storage Temp. (Battery) 1 month -4°F to +122°F (-20 to +60 C)3 months -4°F to +104°F (-20 to +45C)1 year -4°F to +68°F (-20 to 20C)1 month -4°F to +122°F (-20 to +60 C)3 months -4°F to +104°F (-20 to +45C)1 year -4°F to +68°F (-20 to 20C)Operating Altitude Up to 12,000 ft (3,657.6 m) Up to 12,000 ft (3,657.6 m)Operating Humidity <95%, non-condensing <95%, non-condensing* Based on an atmospheric pressure of 14.7 psi (101 kPa) at 70°F (21°C)**Operating outside of these operational specifications can limit the concentrator’s ability to meet Oxygen Concentrationspecification at higher liter flow rates