Hi Topper
The best neonatal ventilator on the market currently is the Fabian, but then I would say that
Regarding the volume guarantee, I couldn't possibly comment but if the wheel isn't broken, why try and fix it.
Good feedback on websites though, if you or anyone else have any more constructive comments, feel free to get in touch via pm or email. If a company does something good, the others will follow which should make it better for everyone.
Mark