Comment by eternityforest

C245 clones seem to be the new current standard tip format, they're pretty nice.

Not supported by any open third party firmware usually, but that's fine with me.

One thing to watch out for is tip grounding, some cheap irons leak a few volts at micro to milliamp level power, relative to ground, which could matter if you solder very sensitive things that are grounded, which you probably don't.

DIY fume extractors are hard to do, you need powerful fans unless you have an arm to put the extractor right above the iron. Also remember that when it's just sitting in the stand, it will still smoke for a few seconds, so the extractor must cover that too.

Those thin wispy activated carbon pads probably aren't doing much, you need actual particulate filtering like a HEPA or similar, but almost anything is better than having the smoke directly in your face with no fans.