Why do some meditation scents like Nag Champa or Sandalwood seem to lose their intensity so quickly when used for creating a calming space at home?

So I’ve been trying to level up my little at‑home chill zone, and I keep running into this weird thing: scents like Nag Champa or Sandalwood smell amazing for, like, five minutes and then… poof, they’re basically gone. I’m over here wondering if my nose is broken or if I’m buying weak stuff or what. I just want my space to stay calm without having to relight sticks nonstop. Anyone else deal with this? Any tips, better brands, or tricks to keep the scent hanging around longer?