MakerVent has passed ISO 18562 testing ! Final report and risk analysis will be back in a couple of weeks, but in a conference call with the testing lab, they have informed us that VOC analysis shows a very small number of compounds present, and all well within safe margins. We had already been informed that the particulate test had passed. So this ventilator will safely deliver breathable gas. This ventilator is one of the first, if not the first (it may be) to use off the shelf industrial automation, non-medical, components, and pass these safety of breathable gas tests - showing that with careful choice of materials, and expert cleaning (check out our team page, http://MakerVent.com/team to learn more about the cleaning lab), ventilators can be built like this and safely deliver breathable gas. An important milestone !!!