Shinuiy Makom by spices

Question:

Must one repeat a new blessing of Besamim upon smelling a spice that he already said a blessing over but left the room in the interim, and has now returned to smell it? Does it follow the same law as a food or drink, by which we rule that a new blessing must be said if one changed areas such as from inside to outside, or not?

Answer:

It does not follow the same law as food or drink, and hence, so long as one has not resolved upon leaving the room to no longer smell the spice, and so long as he is not remained outside for a long time, then a new blessing is not recited. However, if he decided to no longer smell it and then changed his mind and or if he remained outside for a long time, then upon his return a new blessing is required.

Sources: See Michaber 217:1; M”A 217:3; M”B 217:6; Shaar Hatziyon 217:12; Birchas Habayis 26:32; Ketzos Hashulchan 62 footnote 19; Peri Megadim 218 M”Z that mentions a dispute regarding one who left the room if this is considered Hesech Hadaas; Piskeiy Teshuvos 217:3