Getting the scent of a fragrance worn by muslims

Assalamu Alaikum wa Rahmatullahi wa Barakaatuh

When walking around, particularly at school, I sometimes encounter a strong scent of fragrance. The fragrance appears to linger in an area. It is very strong. The fragrance differs, but always smells like the Itr worn by Muslims. At times, it smells like lobaan. The smell is never like the deodorants perfumes etc. worn by non Muslims. I have been experiencing such on an increasing level recently. I once asked a non Muslim sitting next to me if he could smell anything he said he could not.

I am becoming perturbed about this. Please advise Hadhrat Mufti Saheb.