R.I. Gen. Laws § 11-48-2: Sale, possession, and use.

No person shall intentionally smell or inhale the fumes of any substance having the property of releasing toxic vapors for the purpose of causing a condition of intoxication, euphoria, excitement, exhilaration, stupefaction, or dulled senses or nervous system, nor possess, buy, or sell any substance for the purpose of violating or aiding another to violate this chapter; provided, that this chapter shall not apply to the inhalation of anesthesia for medical or dental purposes.