Blueair
Blueair Blue Pure 411
₹16,999
Sharp
Sharp FP-J30M-B
₹8,490
An in-depth comparison to help you choose the right air purifier for your needs.
Price gap
₹8,509
Score gap
9 pts
Rating gap
0.5
Prices accurate as of 24/11/2025. Prices and availability on Amazon.in may change.
Editor's analysis
A hand-written take on how these two compare in the real world.
Japanese Plasmacluster vs Swedish HEPASilent: Sharp FP-J30M-B at Rs 8,490 vs Blueair Blue Pure 411 at Rs 16,999. Both bring unique patented technologies but at a Rs 8,509 price gap. The Blueair offers higher CADR (350 vs 240 m3/hr), more coverage (38 vs 28 sq m), quieter 17 dB operation, and the lightest build at 1.52 kg. The Sharp counters with Plasmacluster pathogen neutralization and a much lower price. Technology innovation at two different price points.
Round by round
How each product stacks up across the key dimensions.
Product A
Blueair Blue Pure 411
4
wins
Product B
Sharp FP-J30M-B
2
wins
₹16,999
₹8,490
4.6 / 5
4.1 / 5
89/100
80/100
756 reviews
987 reviews
350 m³/hr
240 m³/hr
38 sq m
28 sq m
Quick summary
Japanese Plasmacluster vs Swedish HEPASilent: Sharp FP-J30M-B at Rs 8,490 vs Blueair Blue Pure 411 at Rs 16,999. Both bring unique patented technologies but at a Rs 8,509 price gap.
The Blueair Blue Pure 411 is the better air purifier overall with superior CADR, more coverage, and the quietest operation available. The Sharp FP-J30M is the value pick that adds unique pathogen protection at Rs 7,000 less. Both bring innovative technology - your choice depends on whether you value purification power or pathogen neutralization more.
Side by side
Each pick at a glance, what they include and what they cost.
Blueair
CADR (Clean Air Delivery Rate)
350 m³/hr
Coverage Area
38 sq m
Filter Type
HEPASilent Technology
Noise Level
17-46 dB
Sharp
CADR (Clean Air Delivery Rate)
240 m³/hr
Coverage Area
28 sq m
Filter Type
HEPA + Activated Carbon + Plasmacluster Ion
Noise Level
23-48 dB
Prices accurate as of 24/11/2025. Prices and availability on Amazon.in may change.
What sets them apart
The decisions you are actually making when you pick one over the other.
The Sharp FP-J30M-B is 50% more affordable, saving you ₹8,509. This is a significant price gap that could be a deciding factor.
With 4.6 stars from 756 reviews, the Blueair Blue Pure 411 has stronger customer satisfaction.
The Blueair Blue Pure 411 leads in cadr (clean air delivery rate) with 350 m³/hr compared to 240 m³/hr.
The Blueair Blue Pure 411 leads in coverage area with 38 sq m compared to 28 sq m.
The Blueair Blue Pure 411 is more efficient in noise level with 17-46 dB compared to 23-48 dB.
Spec sheet
Side-by-side numbers with subtle highlighting on the stronger value.
| Specification | Blueair Blue Pure 411 | Sharp FP-J30M-B |
|---|---|---|
| Price | ₹16,999 | ₹8,490 |
| Rating | 4.6 / 5(756) | 4.1 / 5(987) |
| CADR (Clean Air Delivery Rate) | 350 m³/hr | 240 m³/hr |
| Coverage Area | 38 sq m | 28 sq m |
| Filter Type | HEPASilent Technology | HEPA + Activated Carbon + Plasmacluster Ion |
| Noise Level | 17-46 dB | 23-48 dB |
| Power Consumption | 10W | 27W |
| Warranty | 1 year | 1 year |
| Dimensions | 200 x 200 x 425 mm | 399 x 230 x 540 mm |
| Weight | 1.52 kg | 6 kg |
Highlighted cells indicate the stronger value in that row.
Strengths and tradeoffs
Where each pick shines, and where you'll have to compromise.
Decision guide
Pick the one that matches your priorities, not the spec sheet.
Choose
Blueair Blue Pure 411
If you want
Choose
Sharp FP-J30M-B
If you want
Buying tip
These two purifiers complement each other beautifully. The Sharp's Plasmacluster neutralizes pathogens while the Blueair's HEPASilent maximizes particle removal efficiency. If budget allows both (Rs 27,000 total), using the Sharp in the bedroom and Blueair in the living room gives you the best of both technologies across your home.
Ready to decide?
Quick answers
Different technologies for different goals. Blueair's HEPASilent optimizes particle filtration with electrostatic charging for maximum efficiency at minimum noise and power. Sharp's Plasmacluster releases ions to neutralize airborne pathogens. For pollution particles, Blueair. For virus/bacteria protection, Sharp.
If room coverage (38 vs 28 sq m) and CADR (350 vs 240 m3/hr) matter, yes - the Blueair is significantly more powerful. If Plasmacluster pathogen protection is your priority and your room is small, the Sharp at Rs 7,000 less with unique technology is hard to beat.
The Blueair at 1.52 kg is dramatically lighter than the Sharp at 6 kg. The Blueair can be picked up with one hand and moved between rooms effortlessly. The Sharp is more of a fixed placement device due to its weight.