★ SOSA for a Double-Height Headquarters Lobby
A tall, multi-entrance lobby is a volume problem and an air-exchange problem - solve both, not one
★ ★ ★ ★ ★
★★★★★
"Our whole lobby smells the same at the door as it does at the lift. Guests ask what the fragrance is and the machine is in the AHU room, they never see it."
SOSA Angaan · hotel lobby
★★★★★
"We replaced seven plug-in units with one Angaan. One refill a month instead of a daily round. Housekeeping loves it."
SOSA Angaan · facilities
★★★★★
"The showroom finally smells as premium as it looks. No visible gadgets, no wet mist near the cars."
SOSA Angaan · car showroom
★★★★★
"Scheduled it to start before the first check-in and stop after midnight. Set once, runs itself."
SOSA Angaan · hotel front office
★★★★★
"Clients walk into our office and comment on the scent before the interiors. That is the brand doing its work."
SOSA Angaan · corporate office
★★★★★
"The banquet hall used to need four machines and still had dead zones. One Angaan through the ducting fixed it."
SOSA Angaan · banquet hall
★★★★★
"Our whole lobby smells the same at the door as it does at the lift. Guests ask what the fragrance is and the machine is in the AHU room, they never see it."
SOSA Angaan · hotel lobby
★★★★★
"We replaced seven plug-in units with one Angaan. One refill a month instead of a daily round. Housekeeping loves it."
SOSA Angaan · facilities
★★★★★
"The showroom finally smells as premium as it looks. No visible gadgets, no wet mist near the cars."
SOSA Angaan · car showroom
★★★★★
"Scheduled it to start before the first check-in and stop after midnight. Set once, runs itself."
SOSA Angaan · hotel front office
★★★★★
"Clients walk into our office and comment on the scent before the interiors. That is the brand doing its work."
SOSA Angaan · corporate office
★★★★★
"The banquet hall used to need four machines and still had dead zones. One Angaan through the ducting fixed it."
SOSA Angaan · banquet hall
★ The machines a double-height lobby actually uses
SOSA AngaanThe double-height volume, on HVACView ₹25,999
SOSA VaayuAn adjoining normal-height meeting suiteView ₹11,999SOSA AngaanPlaced away from every entranceView ₹25,999
✓ One Angaan covers up to 3,000m³ on the building's own airflow - the right tool once a lobby's volume passes 1000m³ ✓ HVAC-connected or wall-mounted, under 42dB, no visible gadgetry near a public entrance ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Noida
Where should the machine go in a lobby with multiple entrances? Away from every threshold, never near a door. Multiple entrances mean constant air exchange at each one, so no placement near a door will ever hold a settled level - the air there is being replaced by outside air continuously. Aim for a steady, low, even level across the volume instead.
Can one small scent machine cover a large double-height lobby? Usually not. A double-height volume commonly runs to 2,000m³ or more, which is beyond a single SOSA Vaayu's 1000m³ rating and close to or beyond a SOSA Angaan's 3,000m³ rating on its own. Do the cubic-metre arithmetic before assuming one machine, of any size, will do it.
See the SOSA Angaan Book a scenting plan
Facts verified 24 August 2026 against the live SOSA product pages: the SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, described by the manufacturer as approximately 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB, and also runs standalone wall-mounted or lay-flat. The SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, roughly 2,000-3,000 sq ft, with a 400ml refillable tank lasting up to about 75 days, Bluetooth app and button control, 1h/4h/8h/24h timers, operation under 38dB, and CE, RoHS and SGS certification. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.
A double-height lobby is not one large room, it is two separate problems wearing one address - how much air is actually in it, and how much of that air is leaving through the nearest door. Solve both, and the machine choice becomes obvious.
Quick answers — read this first
How do I scent a double-height headquarters lobby? Treat it as a volume problem first. Multiply floor area by the actual ceiling height, divide by 35.3 for cubic metres, and compare that to what a machine is rated for. A tall lobby routinely exceeds 1000m³, which is a SOSA Vaayu's limit, so the honest answer is a SOSA Angaan (₹25,999) on the HVAC rather than a stronger small unit.Where should the machine go in a lobby with multiple entrances? Away from every threshold, never near a door. Multiple entrances mean constant air exchange at each one, so no placement near a door will ever hold a settled level - the air there is being replaced by outside air continuously. Aim for a steady, low, even level across the volume instead.
Can one small scent machine cover a large double-height lobby? Usually not. A double-height volume commonly runs to 2,000m³ or more, which is beyond a single SOSA Vaayu's 1000m³ rating and close to or beyond a SOSA Angaan's 3,000m³ rating on its own. Do the cubic-metre arithmetic before assuming one machine, of any size, will do it.
The short answer
Short answer: as two problems at once - a volume problem (a tall ceiling multiplies air fast; do sq ft x height / 35.3 = m³) and an air-exchange problem (multiple doors mean no placement near them holds a level). The honest answer is usually one SOSA Angaan (₹25,999) on the HVAC, placed away from every entrance, at a steady low level.
The pick: the SOSA Angaan (₹25,999) on the building's HVAC for the double-height volume, with a SOSA Vaayu (₹11,999) for any normal-height meeting suite off the lobby.
Next step: send us the lobby's actual ceiling height and entrance count and we will do the volume and placement maths with you - book a free scenting plan.
In this guide
A double-height lobby is a volume problem and an air-exchange problem at once. The ceiling height decides the machine; the entrances decide where it can never go.
The shortlist for a double-height lobby - tap either machine
For the double-height volume
SOSA Angaan · ₹25,999
Multiple entrances, one machine?
Can one machine really cover it
Get the volume checked
Free scenting plan
Straight answer
How should fragrance be handled across a double-height headquarters lobby?
Start with the volume, because a tall ceiling multiplies air faster than most people expect. A 3,000 sq ft lobby at a 24 ft ceiling is 72,000 cubic feet; divide by 35.3 and you get roughly 2,039m³ - already more than double what one SOSA Vaayu (rated to 1000m³) can honestly cover, and near the ceiling of what one SOSA Angaan (rated to 3,000m³) can do on its own. That arithmetic is the whole decision: a genuine double-height lobby is Angaan territory, run on the building's HVAC, not a Vaayu turned up or four Vaayu scattered around the atrium hoping to add up. Then handle the entrances separately, because they are a different problem. Multiple doors mean the air near every threshold is being constantly replaced by outside air, so no placement close to a door will ever hold a settled level - accept that, and place the unit well into the volume instead, away from every entrance, working with the HVAC's own circulation rather than fighting it at the door. The result you are aiming for is a steady, low, even level across the whole space, not a burst of scent anyone notices walking in. And because a large volume takes a long time to move to a new level, do not try to raise it for an important visitor - by the time it registers, the meeting is over. Fragrance here is ambience alongside good housekeeping and ventilation, not a replacement for either, and it has no bearing on anyone's decision to do business with you.
A double-height lobby is a volume problem (measure it in cubic metres) and an air-exchange problem (multiple doors mean no placement near them holds a level) at the same time.
For a genuine double-height lobby the honest answer is one SOSA Angaan - HVAC-connected, rated to 3,000m³ (about 8,000-10,000 sq ft), 800ml reservoir, under 42dB, placed on the building's own airflow rather than near any single door. A normal-height meeting suite off the lobby is its own Vaayu.
See the SOSA Angaan ₹25,999 Book a scenting plan
The shortlist
The double-height volume is one machine on the HVAC. A normal-height room off it is a separate, smaller machine.
The machine a double-height lobby actually needs
A double-height lobby usually needs one machine on the HVAC for the volume itself, plus a smaller unit for any normal-height room that opens off it. Both images link to the live product page.
The double-height lobby volume itself
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³ - about 8,000-10,000 sq ft. 800ml reservoir, metal body, programmable schedules, under 42dB. Runs on the building's own air handling, away from any single entrance.
From ₹25,999
An adjoining normal-height meeting suite
SOSA Vaayu
A meeting room off the lobby is usually a normal 10 ft ceiling, not a double-height volume, and needs its own smaller machine rather than sharing the Angaan's HVAC run.
From ₹11,999
Placement away from every entrance
SOSA Angaan (placement)
With multiple doors moving air constantly, the unit sits well into the volume, on the HVAC's own circulation, rather than near any threshold where a settled level is impossible.
From ₹25,999
The two problems a double-height lobby actually presents
Two separate questions, answered in order: how much air is actually in the lobby, and how much of it is moving through the doors.
1
Measure the volume - a tall ceiling changes everything
Sq ft times ceiling height, divided by 35.3, in cubic metres
A double-height space of 3,000 sq ft at a 24 ft ceiling holds 72,000 cubic feet of air, which is about 2,039m³ once divided by 35.3 - more than double a single Vaayu's 1000m³ rating. Most facilities plans still think in floor area and badly under-machine a tall lobby as a result. Do the arithmetic before choosing anything.
Tip: if your lobby's volume comes out above 1000m³, stop thinking in Vaayu units and move to the Angaan.
The Angaan is rated to 3,000m³, about 8,000-10,000 sq ft, and runs on the building's own HVAC rather than as a standalone unit fighting a tall room.
See SOSA Angaan →
2
Multiple entrances mean no placement near a door works
The air at every threshold is constantly being replaced
A lobby with more than one entrance has air moving through it continuously - a main door, a side entrance, a covered drop-off all pull outside air in. Placing a unit near any of them means it is fighting a constant exchange it cannot win. The realistic goal is a steady, low level across the volume as a whole, felt once someone is a few steps inside, not a scent that greets them at the threshold.
Mount the Angaan on the HVAC supply so it uses the air the building is already moving, rather than placing a unit near any single door.
See SOSA Angaan →
3
Do not chase a stronger level for a visitor
A large volume takes far longer than twenty minutes to shift
The instinct to turn the machine up before an important guest arrives works against you in a space this size - a settled level across 2,000-3,000m³ of air takes considerably longer to establish than in a small room, so any last-minute increase simply has not arrived by the time the meeting is over. Set a steady, restrained level and leave it running.
Tip: reach the level once, on a schedule, and hold it - do not adjust it for who is visiting that day.
The Angaan's programmable schedule lets you set the level once and hold it, rather than adjusting for each visit.
See SOSA Angaan →
The SOSA principle
A double-height lobby is two problems wearing one room number: how much air is actually in it, and how much of that air is leaving through the nearest door.
Solve the volume with cubic metres, not floor area. Solve the doors with placement, not a stronger setting.
Double-height lobby sizing - one table, by volume
The table below is the whole decision. Volume decides the machine; entrances decide where it can never sit.
The SOSA plan
Double-height lobby sizing - one table, by volume
| Your space | What it needs |
|---|---|
|
A double-height lobby, roughly 2,000-3,000m³ (about 3,000-4,500 sq ft at a 20-24 ft ceiling)
|
One SOSA Angaan (₹25,999) on the building's HVAC - within its 3,000m³ rating View → |
 A normal-height meeting suite opening off the lobby
|
Its own SOSA Vaayu (₹11,999) - a separate, smaller volume on a separate air loop View → |
|
The area within a few metres of any entrance
|
No placement here - constant air exchange means a settled level is never possible at a threshold |
|
A lobby volume beyond about 3,000m³, or with several separate entrance clusters
|
See the companion guide on multiple entrances - a single machine may genuinely not be enough View → |
Once the Angaan is running the main volume, keep any adjoining meeting suite on its own Vaayu and its own fragrance decision - see how much of a large office actually needs scenting for that arithmetic. And if your lobby has several distinct entrance clusters rather than one open volume, read can one machine really cover a huge lobby with multiple entrances before assuming a single Angaan will do the whole job.
One machine on the HVAC, sized to the real volume
SOSA Angaan ₹25,999 covers up to 3,000m³ - about 8,000-10,000 sq ft - on the building's own airflow. Send us the ceiling height and entrance count and we will confirm the plan.
A double-height lobby does not need a stronger machine at the door. It needs the right machine on the HVAC, and patience to let a large volume settle.
— Sonal Sahani, SOSA
Built for a public lobby
HVAC-connected, quiet and out of sight - no unit standing near a door for a visitor to bump into
The SOSA double-height lobby specification
Two machines, one decision: whether the volume you are scenting is the double-height lobby itself, or a normal-height room that happens to open off it. Both are made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA double-height lobby specification
Two machines, chosen by volume and by entrance count
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Angaan
|
The double-height lobby volume, on the HVAC | 3,000m³ (about 8,000-10,000 sq ft), 800ml reservoir, metal body, under 42dB | ₹25,999 View → |
|
SOSA Vaayu
|
A normal-height meeting suite off the lobby | 1000m³ (about 2,000-3,000 sq ft), 400ml tank up to 75 days, Bluetooth app and timers | ₹11,999 View → |
The two things that decide this plan are the actual ceiling height, in cubic metres, and the number of entrances the lobby has. Fragrance here works alongside the building's ventilation, never instead of it, and a steady low level beats a strong one in a space this size. A free scenting plan from your lobby's dimensions will confirm placement before you buy anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
A double-height lobby looks like one large room, but it behaves like two different problems stacked on top of each other. The first is volume: a tall ceiling multiplies the air in the space far faster than most facilities plans expect, because everyone still thinks in floor area. The second is air exchange: a lobby built with multiple entrances - a main door, a side entrance, a covered drop-off - has air moving through it constantly, and no single point in that room ever holds a settled level near a door.
Do the volume first. A 3,000 sq ft lobby at a 24 ft ceiling is 72,000 cubic feet, divided by 35.3, which is about 2,039m³ - already more than twice what one SOSA Vaayu (rated to 1000m³) can honestly cover, and close to the SOSA Angaan's 3,000m³ rating on its own. That number alone tells you this is Angaan territory, on the building's HVAC, not a stronger small machine and not four of them scattered around the atrium.
Then handle the entrances. Multiple doors mean the air near any threshold is being replaced constantly by whatever is outside, so placement has to sit well away from every entrance, and the goal is a steady, low, even level across the volume rather than a strong scent anyone is meant to notice at the door. That is also why I will not raise the setting for an important visitor here - a room this size takes far longer than twenty minutes to move to a new level, so a last-minute increase never even arrives. Fragrance is ambience, not a greeting; it works alongside the building's ventilation and cleaning, never instead of them.
Frequently asked questions
Is a double-height lobby just a bigger version of a normal reception?
No - it is a different problem in two ways. The volume is far larger than floor area suggests, because a tall ceiling multiplies the air in the room, and it usually has more than one entrance, which means constant air exchange at every door. Both need to be handled separately from a normal-height reception.
How do I calculate the volume of a double-height lobby?
Multiply the floor area in sq ft by the actual ceiling height in feet to get cubic feet, then divide by 35.3 to get cubic metres. A 3,000 sq ft lobby at a 24 ft ceiling comes to roughly 2,039 cubic metres - more than double what a single SOSA Vaayu, rated to 1000 cubic metres, can cover.
Where should the scent machine be placed in a lobby with several entrances?
Well away from every entrance, never near a door. Multiple doors mean the air at each threshold is constantly being replaced by outside air, so no placement close to one will ever hold a settled level. Aim for a steady, low level across the volume as a whole instead.
Can I just use a stronger Vaayu setting instead of an Angaan for a double-height lobby?
Not honestly, once the volume passes about 1000 cubic metres. Turning up a single Vaayu does not multiply its coverage - the SOSA Angaan, rated to 3,000 cubic metres and connected to the building's HVAC, is the right tool for a genuinely large or tall volume, not a smaller unit run harder.
Should the fragrance level be increased for an important visitor to a large lobby?
No. A volume this size takes considerably longer than the twenty to forty minutes a small room needs to reach a new settled level, so a last-minute increase will not have arrived by the time the visit is over. Set a steady level on a schedule and leave it running.
A double-height lobby is two problems - solve both
SOSA — Double-Height Lobby Scenting for a Noida Expressway headquarters entrance
The SOSA Angaan (₹25,999) covers up to 3,000m³, about 8,000-10,000 sq ft, on the building's own HVAC; the SOSA Vaayu (₹11,999) handles any normal-height room off the lobby. Both made in India, and a portion of every order supports girl-child education through Nanhi Kali. Send us the ceiling height and entrance count and we will confirm the plan before you spend anything.
Book a free scenting plan → SOSA Angaan · ₹25,999
One more look - the machines that do this job
Continue the read
More from SOSA
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the planning advice applies to any brand.Facts verified 24 August 2026 against the live SOSA product pages: the SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, described by the manufacturer as approximately 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB, and also runs standalone wall-mounted or lay-flat. The SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, roughly 2,000-3,000 sq ft, with a 400ml refillable tank lasting up to about 75 days, Bluetooth app and button control, 1h/4h/8h/24h timers, operation under 38dB, and CE, RoHS and SGS certification. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.