> "the same fumes" But, they're not the same. I had to dig around a bit to verify, but melting lead creates lead fumes: https://www.cdc.gov/niosh/topics/lead/e

> "the same fumes" But, they're not the same. I had to dig around a bit to verify, but melting lead creates lead fumes: https://www.cdc.gov/niosh/topics/lead/exposure.html https://www.cdc.gov/niosh/topics/lead/exposure.html You do not have to bring lead to boiling create lead fumes (aka vapor). Here's the OSHA documentation on lead: https://www.osha.gov/chemicaldata/chemResult.html?recNo=500 https://www.osha.gov/chemicaldata/chemResult.html?recNo=500 They have specifications for testing lead (and other metal) content in the air from soldering operations: https://www.osha.gov/dts/sltc/methods/inorganic/id206/id206.pdf https://www.osha.gov/dts/sltc/methods/inorganic/id206/id206....