The invention relates to a removable nasal device (1) comprising two closed loops (2) with blunt edges joined by an elastically deformable joining bridge (3) and sized for the tight introduction of each in a respective nostril, wherein at least one of said loops is provided with at least one outer strip portion (4a, 4b, 4b) forming an end side lobe (5a, 5b, 5b) projecting from said loop, which allows varying the perimeter around each loop when said lobes are removed and thus adapting to the users nostril size. Said loops determine respective oblong figures in plan view, such that they are elastically deformable in their transverse direction and essentially non-elastic in their longitudinal direction, allowing a better introduction in and adaptability to the nasal cavity.
