Where Is Ambient Scent Most Appropriate in a Large Women's Hospital or Maternity Centre?

In the main lobby and the administrative corridors, and nowhere else. That is the whole answer, and at this scale the exclusion list is far longer than the inclusion list. In scope: the entrance, the main reception and enquiry desks, the public waiting concourse, admissions and billing, the visitor lift lobby on the ground floor, and the offices and corridors that serve those functions. Out of scope, permanently: ward floors, delivery, neonatal, postnatal, theatres, recovery, diagnostics and imaging, consultation and examination rooms, and every clinical corridor in the building - not at a lower setting, not a lighter version, not at all. The reason is environmental and about consent, and it needs no medical support of any kind: patients and their families are in those areas for long stretches, often overnight, frequently unable to leave, and none of them chose the fragrance. A public concourse people cross in two minutes is a different proposition from a floor somebody is staying on. The second thing that changes at this size is that the installation question stops being which room and becomes which air handling unit. An HVAC-mounted machine scents whatever its air handler serves, so the only acceptable arrangement is a unit that serves public zones alone. If the lobby air handler also feeds ward floors or clinical corridors - which is common - then you do not mount anything on it. You either treat the lobby as a standalone volume with a free-standing or wall-mounted machine, or you accept that this building does not get ambient scent, which is a perfectly respectable outcome for a hospital. Which AHU serves what, and whether it can be isolated, is your facilities engineer's decision rather than a fragrance company's, and I would rather hand that over plainly than pretend a machine setting can substitute for a duct drawing. Hardware follows from that. A hospital public floor of roughly 8,000-10,000 sq ft is SOSA Aangan territory at ₹25,999 - an HVAC nebulising diffuser sized for that volume. Where the lobby is a genuinely separate volume of two or three thousand square feet, one SOSA Vaayu at ₹11,999 is the right machine instead, and it is the more common answer than founders expect. A second machine belongs to a second volume of air - a separate wing with its own air handler, a distinct public floor - never to the far corner of the same concourse. Keep one machine, one profile and one level across the whole public floor. The register stays clean, dry and cool - never floral, powdery or lavender. And the standing rules do not change with scale: the main desk can switch it off in seconds, at least one seating area in the concourse is kept unscented by design, and if anyone objects you reduce or switch off without defending it. Fragrance here is an ambience decision with no clinical, therapeutic or wellbeing claim, it sits alongside cleaning, ventilation and infection control rather than instead of them and is never a mask, and every clinical judgement overrides it. Ask for a clinic scenting plan and send the AHU schedule with the floor plate.