Where Should I Place a Scent Machine in a Hair Transplant Clinic?

On the air path, and the rest of this answer is only a refinement of that sentence. Start by finding out where conditioned air actually enters your patient-facing area - the supply grille in the ceiling, the split unit above the door, the cassette over the waiting seats - and then find where it leaves, which is usually a return grille, a door undercut or an open stairwell. The machine goes near the entry point, upstream of the volume you want scented, so that the air movement the building already has carries the output for you instead of working against it. That single decision does more than any intensity setting will. The height is the next thing: roughly a metre off the floor, which gives the output room to mix into the room's air before it reaches anyone's face. Lower and it hugs the floor around ankles, higher and it can sit above the breathing zone entirely and you will turn it up to compensate, which is how a reception ends up over-scented. Then the two exclusions. Never directly beside or under an AC return - a return does exactly what its name says, and it will draw the output into the duct before the room has had it, after which you will raise the level and wonder why nothing changed. And never behind the front desk. Whoever sits there is in the plume for eight hours while a patient standing three metres away gets a fraction of it, and that member of staff then becomes your least reliable judge of whether the clinic smells right. Angle the machine into open volume rather than at a seat, so the room does the mixing. Where it must not go at all is easier to state: procedure and graft rooms, post-procedure and recovery areas, and photography or documentation rooms stay unscented - actually unscented, not a lighter version. A faint drift through an opened door is unavoidable and acceptable; a machine sited to reach those rooms is not. Some of this is genuinely not my field, and I would rather hand it over than guess: how much fresh air your reception draws, what the pressure relationship is between the public side and the clinical corridor, and what filtration your system runs are questions for your HVAC contractor or facilities engineer, and they should answer them before anyone decides on a duct mount. The machine itself is one SOSA Vaayu at ₹11,999, which mounts freestanding, on a wall or into HVAC and is therefore the machine that can follow the air rather than the furniture; under about 750 sq ft of patient-facing space, buy a SOSA Sukoon at ₹1,899 and put it on the counter instead. All of this is an ambience decision with no clinical, therapeutic or air-quality claim, it sits alongside your cleaning and ventilation rather than instead of them and is never used to mask another smell, and your judgement as the treating clinician overrides any placement plan in your own rooms. Ask for a clinic scenting plan and send the floor plan with the grilles marked.