Segmentation by types of inhalation anesthetics distinguishes three chemical families: Halogenated agents, Non‑halogenated agents, and Gaseous agents. Halogenated agents—including sevoflurane, desflurane, and isoflurane—capture the largest share, roughly 70 % of market value, due to their superior potency, low blood‑gas solubility, and favorable safety profile, which drives both hospital procurement and premium pricing. Non‑halogenated agents, principally nitrous oxide, hold about 20 % of the market; their low cost and analgesic properties sustain demand in mixed‑gas regimens despite lower potency. Gaseous agents such as xenon occupy a niche 10 % segment, valued for neuro‑protective effects and rapid emergence, but limited by high acquisition costs and specialized delivery equipment. This type‑based taxonomy clarifies how molecular characteristics, cost structures, and clinical efficacy collectively determine each sub‑segment’s contribution to the total Inhalation Anesthetic market size.