Washington Revised Code Title 9. Crimes and Punishments § 9.47A.020. Unlawful inhalation--Exception

It is unlawful for any person to intentionally smell or inhale the fumes of any type of substance as defined in RCW 9.47A.010 or to induce any other person to do so, for the purpose of causing a condition of, or inducing symptoms of intoxication, elation, euphoria, dizziness, excitement, irrational behavior, exhilaration, paralysis, stupefaction, or dulling of the senses of the nervous system, or for the purpose of, in any manner, changing, distorting, or disturbing the audio, visual, or mental processes. This section does not apply to the inhalation of any anesthesia for medical or dental purposes.