Smelling things

Hello. I'm new to this forum.

Three years ago, I lost my brother to a heart attack. He lived alone and a friend of his found him deceased in his house. My husband and I caught a flight and went to his house to look after his things. He used a very unique smelling oil in his home as an air freshener.

Just last night, I went upstairs in my home and I smelled this oil. I asked my husband if he had pulled out any of the boxes that we were storing with my brothers things. He said he hadn't. This morning when I was in the kitchen, I smelled it again, and then at work today, I smelled it again.

I am very open to receiving anything spiritual. I'm wondering if this could have been my brother visiting? Does anyone have a similar experience?

Thank you.