Sometimes the old rules make sense.

If you're new to vaporizers altogether, starting with everything open isn't terrible. It gives you an easy, airy draw that's hard to get wrong. You can tighten up later as you learn what you like.

If you're using a device with a fixed airflow (no adjustment), don't fight it. It's already set for a general balance. Work with it, not against it.

And if you're sharing your device with a friend, set it to a middle ground. That way nobody gets a surprise too-tight or too-airy hit.

But for daily commuting, the contrarian approach wins: half-closed to start, adjust in small steps, and let your own draw guide you.

Remember: laws and regulations around vapor products vary by region. Always check your local rules before using any device. This guide is about hardware only, not a substitute for professional advice.