IF YOU MEAN THE 840 WITH BATT. BACK-UP, MY OPINION IS THAT IT IS A GREAT VENT. YOU JUST HOOK A O2 TANK, AND ONLY REQUIRES 1 RCP TO TRANSPORT. WORKS GREAT FOR ME.
PB 840 IS A GREAT VENTILATOR, BUT FOR TRANSPORT IS BIGGER AND VERY HEAVY AND WITH LITTE BAT. I THINK THAT VELA/VIASYS, T-BIRD-VIASYS, LTV-PULMONETIC,I-VENT VERSAMED, THEY ARE VERY BETTER FOR THIS.
