I had a small device (the Mosfet in a lamp dimmer to be technical) burn out recently, but when it did it smoked a bit. The smell was enough to be noticeable throughout the house, so I held my breath, opened the windows and placed a fan aiming out the door to best rid the odor. After an hour, most of the odor was no longer noticeable but a bit lingered. I read online that white vinegar, either a small amount placed near the area in question, or brought to almost a boil on the stove would not only get rid of the odor, but neutralize it. I did just that. Remaining odor didn't linger long, but I don't know if it was due to absorption/ deactivation by vinegar, or natural dissipation. So does white vinegar, when used this way, actually neutralize or just mask?