My Favourite Room Spray Stopped Smelling Good After Two Weeks in My Lucknow Flat - Do I Need a Diffuser or Is Something Else Actually Wrong?

Something else, most likely, and it is worth being specific about what. The first and by far the most common explanation is olfactory adaptation: your nose stops consciously registering a smell it encounters repeatedly within days, sometimes hours, of first noticing it. This is not a flaw in you or in the spray - it is how smell works for everyone, and it is exactly why the first spritz of a new fragrance always feels more dramatic than the hundredth. Two weeks of daily use is comfortably enough time for a favourite spray to have become "background" to your own nose, even though it still reads perfectly clearly to anyone walking in fresh. The second, and worth checking honestly, is a source smell competing underneath it. A bin that needs emptying, a laundry hamper, a damp patch that develops quietly, or simply a room that has not been aired in a while can all build up gradually over roughly the same two-week window, and once that source smell is present, it competes with the spray rather than the spray becoming weaker on its own. Fragrance sitting on top of a source smell reads as "faded" even when the spray itself performed exactly as it always does. Here is the honest test: step out of the room for ten minutes, or ask someone who was not just in it, and spray again. If it reads fresh and strong to that reset nose, your spray is fine - it was adaptation. If it still smells faint or off to a first-time nose, look at the room itself: air it out properly, check the bin and any laundry, and see if a damp smell has crept in. Our honest recommendation is to buy nothing new right now. Keep the spray you already like, air the room, and deal with any source smell directly - a new diffuser would not fix either of those two things, and buying one on the assumption that your spray "stopped working" would likely leave you disappointed by the same pattern in a different bottle. If, after all that, you find you are simply tired of spraying six times a day to keep pace with your own adapted nose - a different, entirely legitimate complaint - that is a scheduling problem an active diffuser genuinely solves, and worth revisiting separately at that point.