The dust on the Highveld is relentless. Two weeks in and I have stopped wiping surfaces every second day.
Smart Air Purifier
Cleans rooms up to 20 m² with True HEPA filtration, real-time air display, and smart auto-adjust.
Smart Air Purifier
Buy 1
R 1,399.00
What Our Customers Are Saying
You can't fix what you can't see.
The live PM2.5 display shows how clean your air is, right now.
It reacts before you notice.
Auto mode senses dust and smoke, turns the fan up on its own, then quietly back down.
Smoke, pollen and pet hair, trapped.
One 3-in-1 cartridge: pre-filter, True HEPA and activated carbon.
Sleep mode you won't hear.
22 dB, quieter than a whisper, with a 2, 6 or 12 hour timer.
Take clean air room to room.
About 1 kg and USB-C powered, it moves from the bedroom to the office in seconds.
Why Smart Air
Smart enough to run itself
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See your air get cleaner, live
The number on the front is your PM2.5 reading. Lower is cleaner.
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Auto mode does the thinking
Dirty air? It speeds up. Clean air? It slows right down.
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22 dB. Sleep right beside it
Quieter than a whisper on sleep mode, with a 2, 6 or 12 hour timer.
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Three layers. One filter
Pre-filter, True HEPA and activated carbon in a single cartridge.
How it compares
How it stacks up against budget purifiers
| Feature | Oxa | A cheap purifier |
|---|---|---|
| Live PM2.5 reading on the front | Yes | No |
| Auto mode that reacts to the air | Yes | No |
| True HEPA filter | Yes | No |
| Noise on sleep mode | 22 dB | 40 dB+ |
| Room size | Up to 20 m2 | 10-15 m2 |
| Timer | 2, 6 or 12 hours | No |
Compared with the typical budget desktop purifiers sold locally. This is not a comparison with any one brand.
Reviews
Smart Air owners say
Verified reviews1,342 Ratings
Put it in the bedroom because our street is dusty year round. Sleeping through properly now.
Two indoor cats and the lounge finally smells like nothing at all. Highest compliment I can give it.
Ordered Monday, arrived Wednesday. Setup took two minutes straight out of the box.
Cooking smells clear in about twenty minutes now instead of hanging around the whole evening.
Third winter with the windows shut and the house always felt stuffy. Not any more.
Quieter than the fridge. I genuinely forget it is running until I see the little blue light.
Bought one for my mother and ended up buying a second for myself the following week.
Harvest season brings so much fine dust off the vineyards. This handles it without complaint.
The build feels solid, not plasticky. Looks decent enough that I do not mind it in the lounge.
We are near a gravel road and the difference on the windowsills is honestly measurable.
Runs on sleep mode all night in the baby room. Cannot hear it over the monitor at all.
Sea air and dust together were rough on the house. Much better since this arrived.
Filter change took under a minute with no fiddling with clips or tools.
Neighbours braai most weekends and the smoke used to sit in the lounge for hours.
Delivery was quick and it was properly packaged. No damage, nothing missing.
Home office felt stale by midday. Now it does not, and I get more done after lunch.
Been running it four months. No drop in airflow and the filter still looks fine.
I was sceptical about the price but the thing actually works. No regrets at all.
Spring used to mean closing every window. Now I just run this on high instead.
Coastal humidity plus dust is a bad mix. The bedroom is noticeably fresher.
Simple controls and no app to set up. Plug it in and it does the job.
Cooking curry no longer announces itself to the entire house for two days.
Small enough to sit on a side table but it clears the whole lounge.
Industrial area nearby means constant fine grit. Big improvement inside the house.
Bought it mainly for dust and got quieter sleep as a bonus. Did not expect that.
Two dogs that shed constantly. The pre-filter catches most of it before it spreads.
Runs around the clock in the study and I have barely noticed it on the bill.
Arrived faster than promised and support answered my email the same afternoon.
Mining dust is a fact of life here. First thing that has actually helped.
Bedroom air feels lighter. Hard to describe until you have lived with it.
Solid unit, quiet, does what it says. Nothing more to add really.
Renovation dust everywhere for a month. This kept the bedroom liveable throughout.
The night light is dim enough that it does not keep me awake.
Ordered on a Friday and had it by Tuesday. Smooth from start to finish.
Bought after a friend recommended it. Have since recommended it to two more people.
Winter here means everything closed up. The stuffiness is simply gone now.
Coal dust is brutal here. The filter shows it is working, which is oddly satisfying.
Looks smart with no ugly branding. Fits the room instead of shouting at you.
Humid and industrial. Far more comfortable to sleep in since we got it.
Dry and dusty most of the year. Runs constantly and has not skipped a beat.
Spring is rough in our area and the house is a lot easier to be in now.
Bought a second one for the bedroom after the lounge unit proved itself.
Reasonable price for what you get. Feels like a proper appliance, not a gadget.
Farm dust in summer is constant. Copes better than I expected it to.
Set it up in five minutes without reading anything. That says enough.
Quiet enough for a small flat where everything is in one room.
Salt air and fine sand. The pre-filter earns its keep every single week.
Near the airport so the windows stay shut. Real difference indoors.
Simple, quiet and effective. Exactly what I wanted and nothing I did not.
Under the hood
Tech specs
Filtration
- Filter
- 3-in-1 cartridge: pre-filter, True HEPA and activated carbon
- HEPA efficiency
- Traps 99.97% of particles down to 0.3 microns
- Filter life
- 3 to 6 months, with a change reminder on the unit
- Aroma
- Aroma pad in the top grille for a few drops of essential oil
Performance
- Clean air rate
- Moves 100 m³ of air an hour
- Room size
- Up to 20 m²: a bedroom, nursery, study or home office
- Noise
- 22 dB on sleep mode, about 48 dB on high
- Air quality
- Live PM2.5 reading in µg/m³
Controls
- Modes
- Auto, plus High, Mid and Sleep
- Timer
- 2, 6 or 12 hours
- Display
- Touch controls with the live PM2.5 reading
- Reminder
- Filter change alert
Size and power
- Size
- 25.6 cm tall, 16.3 × 16.3 cm
- Weight
- About 1 kg
- Power
- USB-C, 12 V 1 A
- Cable
- 1.5 m USB-C cable
Questions
Good to know
What size room does it cover?
Up to 20 m²: a bedroom, nursery, study or home office. It moves 100 m³ of air an hour. For a bigger lounge or open-plan space, look at our round Home Air Purifier.
What does the number on the display mean?
It is the live PM2.5 reading in micrograms per cubic metre: the amount of fine particles in the air around the unit. Lower is cleaner. In auto mode the fan speeds up when the number rises and slows down once the air has cleared.
How noisy is it?
22dB on sleep mode, quieter than a whisper. On high it is about 48dB, closer to a desk fan.
How often do I change the filter?
Every 3 to 6 months, depending on how much it runs and how dusty the room is. A reminder on the unit tells you when it is time.
Can I use essential oils?
Yes. There is an aroma pad in the top grille. Add a few drops of essential oil to the pad, never onto the filter.
Will it help with allergies or asthma?
A True HEPA filter removes airborne particles like pollen, dust and pet dander that commonly trigger symptoms. It is not a medical device and we make no medical claims. Speak to your doctor about your own condition.
How does delivery work?
Delivery is free anywhere in South Africa. You will get a tracking link when it leaves us.
Can I return it?
Yes. Change-of-mind returns are accepted within 7 days of delivery if the item is unused, unopened and in its original packaging. Faulty or damaged items are replaced. The full details are on our Refund policy page.








