new lighter?

[cheaphumidors]

Am I right to assume that high altitude lighters are better constructed to withstand higher vapor pressures inside the lighters at high altitudes?

My follow up question would be: could those lighters hold isobutane at sea level without the potential of rupture due to their better interior construction?

Yes to the first question and I have no clue to the second question. I can ask one of my lighter reps on Monday

[Ropey]

Yes to the first question and I have no clue to the second question. I can ask one of my lighter reps on Monday

I appreciate it. Also, if one uses an adapter to introduce an isobutane/propane mix, what's the greatest percentage of propane that could be in the mix to avoid explosion if left in a hot car at moderate altitude, say 120 F at 875 mbar.