Is N2 really mandatory with coils?

[GroovyOctopusLabs]

Has decent amount of info but second link has more

Nitrogen assist help

Im brand new at this and dont want to wreck my system. I have a large coil and running passive and wont be able to get solvent around without nitrogen. I need assistance ant suggestions welcome

Most of the advice you’d want is in here

Nitrogen vapors assist***update need HELP***

Hey guys and gals… First thank you all for all the help you have gotten me so far! Is this regulator gonna be adequate for me to use… Thanks all Victor Technologies 0781-9134 TPR-250-200-580-CS Light Duty Purging Cylinder Nitrogen/Argon/Helium Regulator, 10-250 psig Delivery Pressure Range, 200 psig Outlet Pressure Amazon.com