Genuinely quiet at night. We run it on the bedroom setting and forget it's there until the app shows it working harder during a bad-AQI evening.
Bestseller
Blue Pure 411
★★★★☆ 4.3 · 20 Google reviews for Clean Air StoreCompact, lightweight, and affordable design for quiet use in small rooms. 1-year warranty. HEPASilent™.
₨ 22,000
✓ In stock
161 sq ftRoom coverage
17 dB(A)Low-speed noiseQuiet enough to sleep near
1 yearWarrantyBacked by the authorized dealer
Authorized Blueair dealerManufacturer warrantyOrder confirmed by phone
Blueair designs have earned international recognition over the years.
These awards recognise Blueair products across its wider range; they are not awards for every model sold on this page.
Real customer reviews
Bought this after my daughter's allergist recommended a HEPA purifier for her room. Covers the room and the hallway outside it comfortably.
Ordered ahead of the winter smog and it's been worth every rupee. The app notification when AQI spikes outside is the feature I didn't know I needed.
Does exactly what it says. Only reason it's not five stars is delivery took a day longer than promised, unit itself is excellent.
We ordered two for our office floor after staff kept complaining about the AC dust. Noticeably fresher air within a day, and the VAT invoice process was painless.
Was worried about coverage since our living room is fairly open-plan, but it keeps up fine even on the medium setting.
161 sq ftRoom coverage
200 m³/hDust CADR
17 to 46 dB(A)Noise
1.5 to 10 WPower
6 monthsFilter life
1 yearWarranty
See the Blue Pure 411 in action
Official Blueair videos.
Blue Pure 411
Set it up and look after it
Blue Pure 411 tutorial
Cleaning the pre-filters
What the Blue Pure 411 gives you
Quiet
Quiet enough to sleep beside
Put it next to your bed and let it run all night. On low it is as quiet as a whisper, and even on full speed it stays about as quiet as a library. Blueair's Quiet Mark award backs this up.
- 17 dB(A) on low
- 46 dB(A) on the highest speed
Low running cost
Costs about as much as one LED bulb to run
You can leave it on all day without worrying about the bill. On full speed it uses about the same power as one LED bulb. Run for 8 hours a day, the electricity is about Rs 23 a month. With the filter included, the total is about Rs 690 a month.
- 10 W on full speed, 1.5 W on low
- Rs 690 a month with the filter
Room size
Fresh air in a bedroom in 12 minutes
It is made for rooms up to 161 sq ft, like a bedroom, a study or a small living room. It cleans all the air in the room about every 12 minutes, which is five times an hour. CADR is the clean air it makes each hour: 200 m³/h for dust, 220 m³/h for pollen and 180 m³/h for smoke. Room bigger than 161 sq ft? Compare sizes on our air purifier for room page.
- Five full air changes an hour
- 360 degree air intake, so you can put it almost anywhere
HEPASilent
Catches fine dust without the noise
HEPASilent gives the filter an electric charge, so fine dust, pollen and pet dander stick to it as the air passes through. Blueair says this lets the filter be lighter than a standard HEPA filter, so the fan can run slower, quieter and on less power.
- Electric charge plus a filter
- Lighter filter means less noise and less power
Three-part filter
Three layers in one small purifier
The fabric outside catches pet hair and large dust. The particle filter behind it catches pollen, dust and pet dander. A carbon layer takes out light household smells from cooking, pets and smoking.
- Fabric pre-filter
- Particle filter with carbon layer
Easy to look after
One button, and a fabric you can wash
One button controls everything, and a light turns red when the filter needs changing, about every 6 months. The fabric pre-filter can be vacuumed or put in the washing machine.
- Replacement filter Rs 4,000, in stock
- Weighs 1.5 kg, 42.5 cm tall
What it costs to run each month
Worked out at the highest fan speed, 8 hours a day. On Auto and the lower speeds it costs less.
Electricity
Rs 23
10 W x 8 hours x 30 days = 2.4 units, at the NEA household rate of Rs 9.50 a unit.
Filter
Rs 667
Genuine filter Rs 4,000 divided over 6 months. Many filters last longer.
Total
Rs 690
A month, in total. The filter is most of it, so the purifier itself is cheap to run.
Full specifications
Performance
- Room coverageThe room size it is rated for.
- 161 sq ft
- Dust CADRClean air delivered per hour, tested to AHAM standards.
- 200 m³/h
- FiltrationCaptures 99.97% of particles down to 0.1 micron.
- HEPASilent™ Technology
Noise and power
- Noise, lowest speedA soft whisper is about 30 dB.
- 17 dB(A)
- Noise, highest speed
- 46 dB(A)
- Power, lowest speed
- 1.5 W
- Power, highest speedUsed for the monthly cost above.
- 10 W
Filter and warranty
- Filter lifeDepends on how dusty your air is.
- 6 months
- WarrantyLocal warranty handled in Nepal.
- 1 year
Size and weight
- DimensionsWidth x depth x height.
- 20 × 20 × 42.5 cm
- Weight
- 1.5 kg
- Colour
- Blue
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Compare nearby models
Choose by room size and the problem you want to solve.
Is the Blue Pure 411 right for you?
The Blue Pure 411 is part of Blueair's Blue Series, rated for rooms up to 161 sq ft. 1-year warranty. HEPASilent™. Washable fabric pre-filter.
Which rooms it suits
Blueair rates it for rooms up to 161 sq ft. In a bigger room the air changes less often, so look at a larger model. In a smaller room you get more air changes an hour.
How it compares
If you're deciding between related models, see how the Blue Pure 411 compares to the Blue 3410 and the Blue 3610. Coverage, price and noise level are the main differences to weigh.
Warranty and support
The manufacturer warranty is 1 year, and every unit sold here comes through an authorized Blueair dealer with local delivery and after-sales support. See the full range of Blueair air purifiers in Nepal, or read our HEPA air purifier buying guide for how to size a purifier to your space.
Not sure the Blue Pure 411 is the right fit?
Get a free 5-minute consultation with our air quality specialists. Tell us your room size and budget, and we'll help you pick the right model before you order, not after.
💬 Get a Free ConsultationQuestions about this model
Answers before you send an order request.
What room size is the Blue Pure 411 for?
It is made for rooms up to 161 sq ft, like a bedroom, a study or a small home office. It cleans all the air in a room that size about every 12 minutes. For a bigger room, look at the Blue Series.
Is it quiet enough to run at night?
Yes. On low it makes 17 dB(A), about as quiet as a whisper, so you can keep it beside your bed. The highest speed is 46 dB(A), about the level of a quiet library.
How much electricity does it use?
Very little. On full speed it uses about the same as one LED bulb (10 W), and on low only 1.5 W. Running 8 hours a day, the electricity costs about Rs 23 a month. With the filter included, the total running cost is about Rs 690 a month. Check your own bill with the electricity cost calculator.
How often do I change the filter, and what does it cost?
Change it about every 6 months. A light on the top turns red when it is time. The filter for the Blue Pure 411 is Rs 4,000 and we keep it in stock. The fabric pre-filter can be vacuumed or washed in the machine whenever it gets dusty.
What does it remove from the air?
It catches fine dust, pollen and pet dander with its HEPASilent particle filter. The fabric pre-filter stops pet hair and large dust, and the carbon layer takes out light household smells from cooking, pets and smoking.