Why map returns rather than supplies? Because returns collect room air and hand it to the air-handling unit, which redistributes it to every zone that unit serves, so a machine near a return reaches areas you excluded.
What is an exposure register? A list of every permanently occupied position within a few metres of a proposed device - reception staff, security, housekeeping - since those people are exposed for whole shifts rather than minutes.
Eight items, one afternoon, one page - and the eighth is the one nobody does
Facilities managers are the people who end up living with a scenting decision, so this page is written for them rather than for the person who approved the budget. The survey below takes an afternoon with the mechanical drawings and a walk of the floor, and it will tell you more about your building than the fragrance question strictly requires - which is the point, because several of these items will explain smells you have been living with. Item one: zone volumes. Every enquiry we receive arrives quoting floor area, and floor area is the one piece of information that cannot be used to size a machine. Fragrance disperses into enclosed volume, so what we need is length by breadth by ceiling height for each zone you intend to compose. A 400 square foot reception with a nine-foot ceiling and a 400 square foot reception with a double-height atrium are completely different jobs. List the zones you actually intend to scent - typically reception and waiting, the client lounge, visitor meeting rooms and the boardroom - with their dimensions, and list nothing else, because the survey is also a scoping exercise. Item two: door conditions. Coverage stops at the first closed door and very nearly stops at an open one. For each zone boundary, record whether there is a door, whether it has a working closer, whether it is access-controlled, and - the honest part - whether it gets wedged open in practice, during the morning arrival rush, during large meeting turnovers, by housekeeping trolleys or by deliveries. A propped badge door removes your boundary entirely, so if there is an operational reason for the wedge, that is the thing to fix rather than the behaviour. Item three: the mechanical map, and this is the item that pays for the whole exercise. Get the drawings or walk the ceiling with your MEP contractor and record which air-handling unit or which fan-coil units serve which zones, and where every return grille is. Returns are what actually distribute air: a return collects room air, delivers it to the unit, and the unit conditions and pushes it out to every zone it serves. Two things to look for. Any case where a zone you intend to scent shares a unit with a zone you intend to keep clear, because your register will be redistributed to that clear zone. And any case where a zone you want clean shares a unit with a pantry, toilet lobby, sluice, smoking area or service corridor, because that is almost certainly causing a problem today and it is a mechanical defect to raise rather than something to cover. While you are there, mark the two-metre exclusion around every supply and return grille, since a machine in either airflow is either being blown across the room or being fed into the ductwork. Item four: fresh air. Cooling is not ventilation. Record whether a dedicated fresh-air provision exists, whether it was commissioned, and whether it is actually running today, because it is common to find one that was value-engineered down or switched off because it raised the cooling load. A floor with several hundred people and no working fresh-air supply accumulates carbon dioxide, breath and body odour through the day, and that is the true reason offices feel heavy by four in the afternoon at a comfortable temperature. No fragrance decision addresses it. Item five: power. For each intended zone, is there a socket at the position the machine should physically occupy - entrance end of the zone, clear of grilles, away from the door to the working floor - and is that socket on a circuit that survives the end-of-day switch-off? The most valuable operational setting available is a timer that starts before the visitor window opens, and a machine on a circuit that dies at ten at night cannot do it. If you plan to use an app-controlled machine, also check that there is usable signal at that position, because a unit inside a joinery plinth in a core area is a unit you will operate by hand. Item six: extraction status. For every pantry, sanitary area, sluice, waste hold and any wet room: is there a dedicated extract, is it ducted to outside rather than into a ceiling void, does it run, and is there a hood over the microwave bank? Then do the pressure check at each door - hold a light tissue at the threshold with systems running and confirm that air is drawn in rather than blown out. Office pantries are very often positively pressured by accident, because a cooling supply was ducted in and no extract was provided, and a pressurised pantry exports its air into your corridor all day. Item seven: the exposure register, which almost nobody compiles and which is the item that will keep you out of an awkward conversation. For each proposed device position, list every permanently occupied seat within a few metres: reception staff, the security desk, a housekeeping station, a visitor host, a coordinator. Those people are exposed for a whole shift while a visitor is exposed for twenty minutes, and reception and security staff are frequently contract rather than payroll, which means they are the least likely population in your building to raise a concern. Where a position is within a few metres of a device, move the device, not the person. Item eight: the objection process, written down in plain language and actually circulated. It should say which zones carry fragrance and which do not, with the reason attached rather than as a rule - a reason travels through an organisation and a rule does not. It should state that any employee or contractor may switch a device off if they or a visitor ask, without needing permission and without being questioned afterwards. It should identify a fragrance-free route from the entrance to the lift lobby and to at least one meeting room. And it should say who to tell if somebody wants it changed. This page costs nothing, takes twenty minutes to write, and is the difference between a considered policy and a purchase that somebody will complain about in six months. Two things to record while you are surveying, because they will come up. First, what your building does that you do not control: in most HITEC City offices the ground-floor lobby, the lift lobby and the common corridors belong to the landlord and may be shared with tenants whose businesses smell of something, so your reception register should be sized for the transition from the lift lobby rather than from the street. Second, the plant as a source: smell the air at a supply grille shortly after startup and compare it with room air away from any grille. If the supply is the stronger or sourer of the two, your coil, condensate tray or filters are contributing to every zone the unit serves, and no fragrance decision will help until that is addressed. Ask for coil cleaning by name rather than a general service, and set filter intervals to HITEC City's real dust load rather than a manufacturer default. What we do with your page. We size by enclosed volume, not floor area, and we quote per zone: typically a Sukoon at ₹1,899 with a 500ml tank and timer for reception, a Boond at ₹899 for a visitor meeting room at about half the reception level, reeds from ₹749 where nothing should hum or no compliant socket exists, a Megh at ₹3,499 where the building runs shifts and no machine should be opened in front of a visitor, and a Vaayu at ₹11,999 - waterless, Bluetooth app control and timer, rated for roughly a thousand cubic metres - only where a double-height reception would out-volume an ultrasonic unit or where several visitor zones should share one schedule you can change from a phone. One register across all zones at different settings, because a signature works by repetition: Quiet Luxury, with white tea, bergamot and cedar, is our usual first recommendation for a corporate floor, White Tea Serenity is the quietest of the seven, and Forest Suite suits timber and stone interiors. Gourmand registers stay out of workplaces entirely. And one thing we will decline: injecting fragrance into your air-handling unit or ductwork, which removes every zone boundary by definition, gives no employee an opt-out, and converts a ten-second off switch into a work order. SOSA makes no health, mood, productivity or spend claims.
What we quote against
One register across every visitor-facing zone, at different settings, because a signature works by repetition. Quiet Luxury, with white tea, bergamot and cedar, is our usual first recommendation for a HITEC City corporate floor: it reads as clean air rather than as perfume, which is what a visitor arriving from heat and a shared lift lobby wants. White Tea Serenity, with white tea, aloe and cedar, is the quietest of the seven and suits a floor where meeting rooms matter more than the entrance. Forest Suite, with cedarwood, vetiver and green leaves, works where the interiors use timber and stone. Keep gourmand registers out of a workplace entirely.
| Scent | Why it suits the mood |
|---|---|
| Volumes, doors · one walk | Ceiling heights per zone, and which boundaries actually close by themselves |
| Units, returns, fresh air · drawings | What shares a loop with what, and whether the ventilation provision is real |
| Sockets, extraction · one walk | Night-live circuits at the right positions, and pantries drawn in rather than blown out |
| Exposure and objections · one page | Who sits beside a device all shift, and who may switch it off without asking |
On why the returns matter most, see the HVAC chapter. On the zoning the survey should produce, the shared-register chapter. On why machine count is the wrong lever on an open floor, the air-change chapter. Ask on WhatsApp at +91 96192 18531.
The SOSA commercial edit for Hyderabad
Every SOSA product here is alcohol-free and made in small batches in India, and everything below applies to customer-facing zones only. Clinical and procedure rooms, kitchens and pantries, chemical or detailing bays, sanitary areas and back-of-house are not scented, and that is a boundary rather than a preference - somebody undressed, sedated or immobile cannot object to the air, a kitchen should smell of what it is cooking, and a workshop needs extraction rather than perfume. Covered outdoor areas cannot hold fragrance at all. Fix what the building is producing at source before adding anything, because fragrance combines with dust, pantry smells and chemical odours rather than removing them. SOSA makes no health, mood, productivity or spend claims. A portion of every order supports girl-child education through Nanhi Kali. Here is the edit.
| Product | Best for | Why it works | From |
|---|---|---|---|
| SOSA Vaayu | Large receptions, showrooms, lobbies, atria | Waterless cold-air nebuliser, around 1000m³, Bluetooth app and timer so business hours and a low setting are fixed once instead of remembered daily | ₹11,999 |
| SOSA Megh (6L) + Hotel Collection | Mid-size reception & long trading hours | 6-litre tank, so no machine is serviced during customer hours - which is itself a source of inconsistency | ₹3,499 |
| SOSA Sukoon (500ml) + Hotel Collection | Standard reception, clinic front, boutique | 500ml with a timer. The workhorse for a normal customer-facing room | ₹1,899 |
| SOSA Boond (300ml) + Hotel Collection | Cabins, VIP rooms, small lounges, offices | 300ml mini - one per small enclosed room rather than over-driving a larger machine down a corridor | ₹899 |
| Mountain Breeze or Morning Freshness reed | Consultation cabins, no-plug corners | Alcohol-free reed oil, no power, no water, nothing humming and no dial for anybody to adjust mid-meeting. 50ml lasts six to ten weeks | ₹749 |
Versailles
Most Hyderabad businesses that call us have already spent well on interiors, and the question underneath the question is usually the same: why does a room that looks expensive not feel expensive. Part of the answer is air, and part of it is not. So before we sell anybody a machine we ask what the building is currently producing - street dust at a busy junction, a pantry two doors from a client lounge, HVAC filters nobody has changed since installation, a detailing bay, a drain in a sanitary area. Fragrance combines with all of that rather than removing it, so a register over an unaddressed source gives you both plus the clear impression that somebody was covering something.
The second thing I insist on is the neutral list. Clinical and procedure rooms, kitchens and pantries, chemical bays, sanitary areas and back-of-house get nothing. A patient who is undressed or immobile cannot object to the air, a kitchen should smell of what it is cooking, and a workshop needs extraction rather than perfume. Covered outdoor areas cannot hold fragrance at all. That list is shorter than the list of rooms you can compose, and holding it is what separates a considered building from a sprayed one.
And to be plain about what we do not claim: we make no health, mood, productivity, dwell-time or spend claims. Ambient fragrance does not improve focus, does not affect wellbeing and does not make anybody buy more. It gives a room clean, consistent, composed air, which is worth paying for and is the whole of it. We also make seven registers rather than bespoke ones, and I would rather say so now than let anybody imagine otherwise. Made in India, and a part of every order supports girl-child education.
Frequently asked questions
Facts verified September 2026: SOSA makes no health, therapeutic, mood, productivity, dwell-time or spend claims of any kind. Ambient fragrance is for the air of a room only; it does not treat, prevent, diagnose or affect any condition, does not improve concentration, alertness, wellbeing or mood, and does not influence purchase behaviour, spend or time spent in a space. SOSA recommends that the following zones remain fragrance-free: clinical, procedure and treatment rooms, dental operatories, any room where a person is undressed, sedated or immobile, kitchens, pantries and food-preparation areas, active workshop, detailing or chemical bays, sanitary areas, and back-of-house or utility spaces, all of which require extraction rather than fragrance. Covered outdoor and semi-outdoor areas cannot hold a perceptible fragrance level because air movement there is unbounded. Characteristic commercial-building odours arise from street dust and outdoor air, loaded HVAC filters and coils, condensate drain pans and dried floor traps, food and pantry activity, damp and monsoon humidity, cleaning chemistry such as strong phenyl and pine disinfectants, and workshop or detailing chemicals; these are addressed by filtration and maintenance, extraction, drain and trap checks, surface-chemistry selection and adequate air-change rates, not by ambient fragrance, which combines with an existing odour rather than removing it. A diffuser scents the volume of air that mixes freely around it, so coverage stops at the first closed door and device counts follow enclosed volumes rather than floor area; high ceilings, glass facades, strong air-conditioning throw and frequent door movement all reduce the level a given output achieves. Volatility rises with temperature, so the same setting reads stronger in a hot afternoon than a cool morning. SOSA Vaayu is a waterless cold-air nebuliser with Bluetooth app and timer, around 1000m³ coverage, ₹11,999, supplied with four hotel-inspired scents. Ultrasonic cool-mist diffusers: Boond 300ml ₹899, Sukoon 500ml ₹1,899, Megh 6L ₹3,499, each supplied with three hotel-inspired scents. The Hotel Collection is a water-based fragrance for ultrasonic diffusers only - 15ml ₹299, 100ml ₹999, 300ml ₹1,799, at three to six drops per tank with the tank rinsed between scents; it is not for reed diffusers or waterless nebulisers, and raw essential or carrier oils must never be used in an ultrasonic machine. Reed diffusers use alcohol-free reed oil with no power or water: Morning Freshness ₹749, Garden Bloom and Evening Calm ₹799, Mountain Breeze and Fresh Brew ₹849 for 50ml, 130ml from ₹1,249, refills ₹2,399 for 300ml and ₹3,499 for 500ml; a 50ml bottle lasts roughly six to ten weeks in calm air. The seven registers are SOSA's own interpretations composed in India - Quiet Luxury (white tea, bergamot, cedar), White Tea Serenity (white tea, aloe, cedar), Forest Suite (cedarwood, vetiver, green leaves), Old-World Glamour (amber, violet, woods), Tea Garden (jasmine, green tea, white tea), Warm Welcome (citrus, floral, sandalwood) and Lobby Bar (citrus, pepper, amber). SOSA does not create bespoke or custom-composed registers for individual businesses. SOSA is independent and not affiliated with, endorsed by or associated with any hotel brand; hotel names are trademarks of their respective owners used only to describe a scent style. Cruelty-free, vegan, made in India. Prices and availability are subject to change - see the live collection pages.