[pHaestus]

That graph is packed so densely with useful information that it's scary!

Note that the Delta EHE falls only atop the 0.75m^3/min graph. That noise level is FAR above my threshold.

Note how the Panaflo L1A @12V performs slightly better than the Delta EHE@7V; I think I mentioned something about not bothering to undervolt stronger fans if noise/performance was important earlier in this thread already.

And talk about the diminishing returns on adding noise: Panaflo L1A is rated at 21 dBA rated while the Delta EHE is rated at 53 dBA!

Great graph!