Page Page 1-6 1-6 LASAIR LASAIR II II Operator’s Operator’s ManualManual
Chapter 1: Getting StartedChapter 1: Getting Started
Internal ComponentsInternal Components
Significant internal components include the following:Significant internal components include the following:
•• TubingTubing: 3/4-inch I.D., polyethylene tubing is used : 3/4-inch I.D., polyethylene tubing is used between the samplingbetween the sampling
inlet and the pump, and the pump and the outlet.inlet and the pump, and the pump and the outlet.
••
PumpPump: A regenerative blower pump is located a: A regenerative blower pump is located at the base of the unit. t the base of the unit. TheThe
pump is a low power, DC voltage-controlled unit tpump is a low power, DC voltage-controlled unit that is controlled to keephat is controlled to keep
the flow rate at one cubic foot the flow rate at one cubic foot per minute. This pump was selected for per minute. This pump was selected for itsits
expected long life and low maintenance requirements.expected long life and low maintenance requirements.
••
HEPA FilterHEPA Filter: The internal HEPA filter eliminates 99.97% of all particles: The internal HEPA filter eliminates 99.97% of all particles
with a size of 0.3with a size of 0.3
µµ
m or greater. It is located just before the sample outlet tom or greater. It is located just before the sample outlet to
filter out particles before the air leaves the LASAIR II.filter out particles before the air leaves the LASAIR II.