The Invention of the Labmask

While Labcoat Man was thwarting the plot of the evil school lunch lady, he shot laughing gas (nitrous oxide) out of his trusty labgauntlet to laugh the lunch lady into submission. Before the gas could reach her, she turned on a nearby fan, and blew it back into his face. Consequently, Labcoat Man breathed it in and started laughing out of control. This is how he discovered that the Labcoat and goggles didn't protect him from harmful gasses.

After he got home, Carl set out to make a gas mask that could be activated from the mystical goggles. After several hours of tinkering in his private laboratory, he completed his task. He put the goggles and labcoat on, became labcoat man, and said "LABMASK ON!" At that very instant, another flash of light filled the room. When the light had subsided, he dicovered that an air-purifying respirator (gas mask) had grown from the goggles, and gave him complete protection against harmful gasses. He was pleased at his discovery. The next day, Labcoat Man went after the evil lunch lady, and won easily.