Keep your Orbitrap and Exactive clean longer: Part 2

My post on David Sarracino's modification to keep the Orbitrap and Q Exactive clean longer has been one of the most popular ones in a while.

I touched base with Dave and he provided some additional details:  This is how he sets it up on an LTQ-Orbitrap (you should be able to click on the image to see full size)

and this is how he sets it up on the Q Exactive:

I corrected the original post:  the part is actually a P432 and a gas level of 1 is all that is necessary.