特点：底部和侧面同时吸烟,并可以随意调节吸烟流量。TheArm-Evac50isaunique,portable,cost-effective,bench-topfumeextractorthatprovideswideareafumeextractionorhighlyefficientsourcecaptureattwopointsusingtheoptionalarmattachment(8886-0055).TheArm-Evac50featuresoperatoradjustableairflow,quietoperationandawidevarietyoffilterstomeettheneedsofvirtuallyanyapplication.)