GilAir Plus Personal Air Sampling Pump (1 - 5,000 cc/min)

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Flow Range
Constant flow 20 - 5,000 cc/min. without external adaptors
Constant pressure 1 - 5,000 cc/min without external adaptors

Flow Modes
Constant Flow or High and Low Flow Constant Pressure


Flow Display ± 5% or 3 cc/min of set flow, whichever is larger

Constant Flow Control ± 5% or 3 cc/min of set flow, whichever is larger

Constant Pressure Control ± 10% of back-pressure

Back Pressure Capability

(8-hour runtime) 5000 cc/min. up to 12” H20 back pressure 

4000 cc/min. up to 20” H20 back pressure
3000 cc/min. up to 30” H20 back pressure
2000 cc/min. up to 30” H20 back pressure
1000 cc/min. up to 35” H20 back pressure
450 - 1000 cc/min. up to 40” H20 back pressure
20 - 449 cc/min. up to 40” H20 back pressure

Run Time 8 hour minimum

Flow Fault If flow changes exceed 5% within back pressure specifications, fault notification appears. If fault exceeds 30 seconds, pump shuts down. Selectable automatic fault recovery allows the pump to attempt restart every 3 minutes for up to 10 times or to hold until manual intervention


Temperature Ranges

Operating 32°F to 113°F (0°C to 45°C)

Storage -4°F to 113°F (-20°C to 45°C)

Charging 41°F to 104°F (5°C to 40°C)

Humidity Ranges

Operating 5-95 %RH, non-condensing

Storage 5-98 %RH, non-condensing


Display Flow rate, sample time, and sample volume in actual conditions

Indicators Green and Red LED’s

Dimensions 4.3 x 2.4 x 2.4 inches (10.9 x 6.1 x 6.1 centimeters)

Weight 20.5 ounce (581 grams)

Warranty 2 years from original shipment, 5 years for pump keypad, and 1 year on rechargeable NiMH battery pack


Power Options Removable rechargeable nickel-metal hydride (NiMH) battery pack, optional alkaline battery pack, or DC power

Battery Level Indicator On-screen icon displays battery level

Interface Connectors All pump interface is carried out via the Dock or keypad

Dock Functions Battery charging, computer interface, and auto-calibration

Charging Time Under 3.5 hours