Airgas rhymes with:
amerigas, energas, amerigas, bluegrass, boardingpass, bumpass, bypass, eelgrass, energas, eyeglass, fiberglas, fiberglass, hourglass, jackass, landmass, outclass, overpass, piepgras, plexiglas, plexiglass, sassafras, serfass, shortgrass, snodgrass, spyglass, sunglass, tallgrass, trespass, underclass, underpass, upperclass, worldpass, yankass
Airgas sounds like:
air's, airco, aircoa, aires, airs, airway's, airways, airways', airways's, araiza, arakaki, arakawa, araki, araskog, araujo, arc, arce, arceo, arch, archaic, arches, archey, archie, archway, arco, arco's, arcos, arcs, area's, areas, arechiga, ares, argo, argo's, argosy, argue, argues, arguijo, argus, arias, arias's, aric, arico, aries, aris, arise, arises, ariza, arjo, ark, arko, arkose, arocha, arocho, aros, arose, arouse, arouses, arrays, arrearage, arrearages, arrears, arriaga, arrick, arrigo, arris, arrow's, arrows, arroyo's, arx, aurich, ayars, ayer's, ayers, ayres