With longer highs, candy-esque flavors, and little legal restriction, the chemical formerly known as "whippets" or "nitrous" involves huffing the gas into one's lungs to achieve a brief head rush.

A Houston-area dentist is facing criminal charges after huffing nitrous oxide “all day,” then leading cops on a half-mile car chase, which marked his third arrest since October on identical ...

When he stopped, the officer said Pedlar, identified as a doctor of dentistry and professor at UT Health, had been inhaling nitrous oxide, commonly known as "huffing," while trying to evade police.