I don’t understand your comment... clarify your statements.

The company(ies) I fly for entrusted me with the keys to the jet. I guess they trust my judgment Conditioned Air versus APU? More important things to worry about... “Where’s my coffee with half & half (light cream overseas)?”

My previous post is obvious to the casual observer. The purpose of a huffer, is to provide air for starting the engine(s), and not to run the PACKS. Manuals from different airlines from different countries describe potential hazards due to fumes entering the cabin via the ACS.

I have, and and will continue, provided there’s no conditioned air cart at the jet, leave the APU running with air on. I/A/W SOPs, with the APU running, myself or the F/O will remain on the jet.

If we arrive at a heat soaked jet with no conditioned air, after the fire check... APU on PACKs on, coffee maker on the line.

By the way the same applies for a cold soaked jet.