My Kitchen Showroom Has Central AC - Where Should I Place the Scent Machine?

On the supply side of the air, and decisively away from the returns. That is the whole answer, and the reasoning behind it is worth more than the instruction. A central system does two things in every room it serves: it pushes conditioned air in through supply grilles or diffusers, and it draws air back out through return grilles so it can be cooled and pushed round again. Those two grille types often look almost identical from six feet below, which is why so many showrooms end up with a machine parked under a return, quietly feeding the plant room. A supply grille distributes whatever you put in front of it; a return grille deletes it. So the freestanding install, which is the right one for the large majority of single-floor showrooms, is this: the machine roughly a metre off the floor, two or three metres downstream of a supply diffuser, inside the stream of air it makes but not in the direct blast, and as far from a return as the room sensibly allows. It should not sit at the entrance, where a glass door keeps swapping your air for the street's, and it should not sit inside a display kitchen, where it becomes a prop. Then the second install, which people ask about more than they need it. The SOSA Vaayu is wall and HVAC mountable, so it can be fitted into the air handling rather than stood in the room - and where a building has one central system serving an entrance, a display floor and a consultation room, that is genuinely the neatest distribution you can get. But I will not tell you how to do it, because it is not my trade. Duct penetration, static pressure, where the fresh-air intake sits, what grade of filter the return train carries and whether any of that changes when something is introduced upstream are questions for the HVAC contractor who commissioned your system. Ask them, get it in writing, and treat any fragrance supplier who answers those questions off the top of their head as someone who has not understood which trade they are in. Two honest cautions before the money. Central AC does not make an over-scented showroom acceptable - it distributes the level you chose, so if the level is wrong it is now evenly wrong, and the level is still judged from the consultation seat at minute ninety by the designers who breathe it all week. And none of this is a way to cover a smell: if the showroom smells of laminate, adhesive or last week's cooking demonstration, fragrance never covers it, and the money goes to ventilation, extraction and cleaning first. On hardware: one SOSA Vaayu at ₹11,999, covering up to 1000m³, on the app timer through trading hours, key-locked. Under about 750 sq ft, one SOSA Sukoon at ₹1,899 is the honest buy and the Vaayu is the wrong one. And plainly: no one can promise you that ambient scent moves footfall, enquiries or order value, and a supplier who quotes you a figure is selling. Ask for a retail scenting plan and send the plan with the grilles marked.