Hi Paul,
I am not sure how far along the line you are but you might consider consider contacting Cardiac Services up in Stockport (
www.cardiac-services.com) to speak with Jon Hollinshead (07789907249).
Cardaic Services are sole distributors for the eVent Medical Inspiration Ventilator (
www.event-medical.com) which is new to the market here in the UK.
It is very comparable from a performance perspective to all of those mentioned above but at a reasonable cost advantage.
Many thanks,
Liam.
