An internal cartridge insulates the Sofnolime from the external wall. Sealed in with unique "scrim" filters, the sofnolime is retained ensuring the diver doesn't experience the "dusty" taste common with rebreathers.

"Radial versus Axial? - It's a discussion that's not worth a damn.

Theory only goes so far - in the end, it's how it performs that matters - and that's all that matters. If there is one thing we have learnt since we first started testing rebreathers and components in 1994 - it's don't take what people say seriously until you see hard data. There is not much of that about so before you can invest your own money in a manufacturing project.