Founder Diaries · Work From Home
By Sonal Sahani · ISIPCA Versailles6 min readUpdated August 2026
The temptation, when you are at your desk for eight hours, is to switch the diffuser on at nine and leave it humming till you log off. Don't. An ultrasonic diffuser is a session tool — run it 30 to 60 minutes, twice a day, and let the room hold the scent in between. Running it all day mostly adds humidity your nose stopped noticing hours ago.
Quick answer
The rhythm: two short sessions — one when you start work, one after lunch — each 30 to 60 minutes on the Sukoon.
Not all day: hours of cool mist add humidity, not more scent, and your nose adapts anyway.
For genuine all-day scent: the waterless Vaayu ₹11,999 — no moisture, app-scheduled.
The short version
Short answer: Short 30–60 minute sessions, once or twice a day — not eight hours straight.
Humid coast / long runs: step up to the waterless
Vaayu — no added moisture.
Here is why sessions beat all-day running. A few minutes after you switch the Sukoon on, the room is genuinely, fully scented. From that moment two things happen at once: your nose begins to adapt, so the fragrance seems to fade even though it is still there, and every extra minute adds more moisture to the air than fragrance to your perception. So a diffuser left running for eight hours does not give you eight hours of noticeable scent — it gives you a scented room for the first while, then a damp room for the rest, with your nose registering neither. A short, concentrated burst is the opposite: you actually notice the fresh hit while your nose is fresh to it, and the fragrance lingers on surfaces and soft furnishings long after the mist has stopped.
The working-day rhythm
When to run it, and for how long
1. Start of work — 45 minutes. Switch it on as you sit down so the room is fresh as you settle in.
2. After lunch — 30 minutes. A second short session lifts the flat afternoon slump, which is exactly when a workspace goes stale.
3. In between — off. Let the scent linger. Topping up every hour just fogs a room your nose has stopped reading.
4. Humid or coastal day — 20–30 minutes, intermittent. Short bursts keep it fresh without dampness.
5. Small study — one session may do. A compact room holds a single burst for most of the day.
In one line: two short sessions a day scent a workspace beautifully — running it longer trades fragrance you notice for humidity you don't.
1
Let the timer work
Intermittent mode suits a working day
SOSA Sukoon₹1,799
The Sukoon has a continuous and an intermittent mode. For a work session I prefer intermittent — a pulse of mist, a pause, a pulse — which stretches both the fragrance and the water in the tank and keeps the scent even rather than heavy. You set it going at the top of a work block and it does its work while you take calls, then switches itself off. Because it also shuts down when the tank runs dry, you are never left worrying about a machine running unattended, which is exactly what makes a session-based routine so easy to keep across a busy day.
Tip: continuous mode for one quick burst in a bigger room; intermittent for a longer, gentler session at a desk.
2
The humidity caveat
Why long runs need a waterless machine
SOSA Vaayu₹11,999
I'll be honest, because it matters in Indian homes. An ultrasonic diffuser adds mild humidity — that is the trade-off for scenting on a cool mist. In a dry Pune winter, a little added moisture is pleasant. In a closed Mumbai or Chennai study during monsoon, running one for a full working day can leave the room, and even your papers, feeling sticky. The answer is not to stop — it is to run sessions. But if you genuinely want fragrance flowing through every working hour, step up to the waterless Vaayu, which nebulises the oil with no water at all and schedules itself through the app so your desk is scented from log-in to log-off.
Tip: if the mirror fogs or the desk feels damp, you have run it too long for your climate. Shorten the session.
Run-time by situation
Match the session to the room and the weather
| Situation |
Run-time |
Mode / device |
| Study, dry weather |
2 × 45 min |
Intermittent |
| Small corner desk |
1 × 30 min |
Intermittent |
| Humid / coastal day |
20–30 min |
Intermittent, short |
| Scent wanted all working day |
Continuous, no humidity |
Use Vaayu
|
The
Sukoon is a session tool — brilliant for bookending a working day, not built to run twelve hours straight.
The SOSA principle
Scent the workspace in sessions — and dry the air before you scent it.
A short burst at the start of work and another after lunch keeps a home office feeling fresh all day. Running the diffuser longer only adds humidity your nose has already tuned out, and no fragrance ever improves stale, closed air.
One last honest word. A session works best on air that is already clean. If the study has been shut overnight, crack a window for two minutes first, then run the Sukoon — a fresh scent needs aired air to sit on, not yesterday's staleness to mask. Fragrance crowns a clean room; it never rescues a closed one. Keep to your sessions and a single ₹299 Hotel Collection fragrance lasts a satisfyingly long time. A portion of whatever you spend funds girl-child education through Nanhi Kali.
Frequently asked
How long should you run an ultrasonic diffuser while working from home?
In short sessions, not continuously. A single 30 to 60 minute session scents the room, and the fragrance lingers in the air for hours after the mist stops. Most people who work from home settle on two sessions — one when they start work and one after lunch — which keeps the space feeling fresh across a full day without the
diffuser running for eight hours. Running it non-stop mostly adds humidity your nose has already tuned out, rather than more scent.
Can I leave the diffuser running all day at my desk?
You can, but it is not the best use of an ultrasonic diffuser. Because it scents on a cool mist, running it for eight hours adds noticeable humidity to a closed study, which is unwelcome in a humid or coastal city and can leave the room feeling damp. It also uses far more fragrance for little extra benefit once your nose has adapted. If you genuinely want scent running through a full working day, the waterless
Vaayu is the right tool — it nebulises fragrance with no water at all and schedules itself through the day via the app.
How many sessions a day do I need?
Two is usually enough for a working day. Run one 30 to 45 minute session at the start of work so the room is fresh as you settle in, and a second after lunch, which is exactly when a dull afternoon can use a lift. In a small room one session may carry the whole day. Rather than topping it up every hour, let the scent linger between sessions — your nose adapts to a constant scent anyway, so a fresh burst you actually notice is worth more than a steady haze you have stopped smelling.
Does the humidity from a diffuser matter in a home office?
In short sessions, not much, and in dry weather a little added moisture is pleasant. It only becomes an issue if you run an ultrasonic diffuser for hours in an already humid, closed room, especially in coastal cities during monsoon, where it can leave surfaces and papers feeling damp. The honest rule is sessions in humid weather, and if you want long daily runs, choose the waterless
Vaayu, which adds no moisture. A good test: if the mirror fogs or the desk feels damp, you have run it too long for your climate.
Should I use continuous or intermittent mode while working?
Intermittent mode suits a working day best. It pulses mist with pauses, which stretches both the fragrance and the water in the tank and keeps the scent even rather than heavy. Set it going at the start of a work block and it switches itself off, so you are not distracted by tending it. Use continuous mode only for a single quick session in a larger room when you want the space scented fast. Either way, the device shuts off when the tank runs dry, so a session-based routine is easy and safe to keep.
Sessions, not marathons
Run the Sukoon short — twice a day is plenty.
A fresh burst at the start of work, another after lunch, then off. For scent that runs from log-in to log-off with no humidity, step up to the waterless Vaayu.
Shop Sukoon — ₹1,799 See Vaayu — ₹11,999
Keep reading · Work from home
Part of the SOSA Sukoon + Hotel Collection wardrobe guide
About this guide
Written by Sonal Sahani, founder of SOSA Home & Body and a perfumer trained at ISIPCA, Versailles. The SOSA Hotel Collection are our own original interpretations inspired by the world's finest hotels; SOSA is independent and not affiliated with or endorsed by any hotel brand. A portion of every order funds girl-child education through Nanhi Kali. Prices and availability are current at the time of writing and subject to change.
