Which power adapter would you recommend for M3 MacBook Air

Excellent choice! I believe I responded to an earlier post of yours where you were considering getting an MBA.

There are two versions (13" & 15") models of the 2024 M3 MacBook Airs, with a number of CPU configurations.

Let's look at the specs for both of these to set a baseline:

For the 13" model:

• 30W USB-C Power Adapter (included with M2 and M3 with 8‑core GPU)
• 35W Dual USB-C Port Compact Power Adapter (included with M2 and M3 with 10-core GPU and 512GB storage, configurable with M2 and M3 with 8‑core GPU)
• Fast-charge capable with 70W USB-C Power Adapter
• Ref: MacBook Air (13-inch, M3, 2024) - Tech Specs - Apple Support

For the 15" model:

• 35W Dual USB-C Port Compact Power Adapter
• Fast-charge capable with 70W USB-C Power Adapter
• Ref: MacBook Air (15-inch, M3, 2024) - Tech Specs - Apple Support

For "fast charging:"

You can fast charge your MacBook Air introduced in 2022 or later and 14- and 16-inch MacBook Pro models introduced in 2021 or later up to 50 percent battery in around 30 minutes.

Ref: Fast charge your MacBook Air or MacBook Pro - Apple Support

Thank you from me too. I'm investigating an upgrade to MBA this year and your response was very helpful. :)