Winix A231 Air Purifier for Bedroom: True HEPA filter captures 99.97% of airborne particles
Ever dreamed of turning your bedroom into a breath of fresh air? The WINIX A231 Air Purifier is here to make that dream a reality. It's not just any purifier—it's a powerhouse with a 4-stage air cleaning system. At its heart? A True HEPA filter that snags 99.97% of those pesky airborne particles (yes, even the tiny 0.3-micron ones), making it a godsend for allergy and asthma sufferers. And let's not forget the PlasmaWave Technology teaming up with a carbon filter to kick odors and VOCs (from your pet's 'accidents', last night's smoke session, or that burnt toast incident) to the curb.
But here's where it gets smart—like, 'I-can-adjust-myself' smart. Its built-in air quality sensor is always on the lookout for pollutants, tweaking the fan speed on the fly to keep your air fresh without sounding like a jet engine or guzzling power. Heading to bed? It slips into Sleep Mode, turning down the noise and lights (and your energy bill) while you snooze. Plus, it'll nudge you when it's time for a filter change—no guesswork needed.
Covering rooms up to 1110 square feet, this bad boy isn't just talk. It's got the badges to prove it: AHAM Certified, Energy Star Certified, and more. And with its sleek white and charcoal gray outfit, it'll look good doing its job, blending into your decor like it was always meant to be there. Style and substance? Check and check.
- PlasmaWave Technology reduces airborne pollutants
- Auto Mode adjusts fan speeds for efficient cleaning
- Smart Sensor monitors air quality in real-time
- Sleep mode for quiet, energy-efficient operation
- True HEPA filter captures 99.97% of airborne particles
General specs
- Brand: Winix
- Model: A231
- Seller: Amazon
- color: White/Charcoal Gray
- product_dimensions: 9.5"D x 9.5"W x 14.6"H
- floor_area: 230 Square Feet
- specification_met: AHAM Certified, Energy Star Certified, ETL Certified, CARB Certified
- noise_level: 20 dB
- particle_retention_size: 0.03 Micron
- controller_type: Touch Control
- item_weight: 7.1 pounds
- country_of_origin: Korea, Republic of
- care_instructions: Hand Wash
- assembly_required: No
- number_of_pieces: 1
- warranty_description: 2 year manufacturer
- batteries_required: No
- included_components: True HEPA Filter
- First listed by seller: 5/11/25
If you are interested in more details, you can find full information on the seller's page.
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Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Winix A231
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Winix A230 Covers up to 1110 sq ft in 1 hour
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Winix 5520 Black
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Winix 5510 Polished Charcoal Gray
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VEWIOR B0B41Z7B6H
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IQAir 121.AA.11.02
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| Brand | Winix | Winix | Winix | Winix | VEWIOR | IQAir |
| Model | A231 | A230 | 5520 | 5510 | B0B41Z7B6H | 121.AA.11.02 |
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| Price | $74.99 | $74.99 | $249.99 | $165.10 | $89.99 | $1,099.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 27, 2025 | June 27, 2025 | August 5, 2025 | July 20, 2025 | July 20, 2025 | August 5, 2025 |
| Noise Level | Nearly silent on slowest speed | 27 dB | 27 dB | |||
| Product Dimensions | 8.3"D x 13.6"W x 22.7"H | 8.3"D x 13.6"W x 22.7"H | 11.6 x 6.4 x 16.3 inches | |||
| Item Weight | 13.3 pounds | 13.3 pounds | 8.27 Pounds | |||
Air Purifier for Bedroom
Rohit A.
Kolkata
May 18, 2025
I bought this hoping it would turn my bedroom into a fresh haven, especially with my cooking habits and the kids around, but reality hit hard. It's supposed to clean the air thoroughly, capturing tiny particles and tackling smells, but after a couple of weeks, I'm not convinced. The automatic adjustments are a neat idea, but it often ramps up for no clear reason, and the noise level is higher than expected, making it distracting when I'm trying to relax. It didn't do much for the lingering food smells or my occasional breathing issues, which was a letdown. The design is sleek, I'll give it that, but functionally, it feels overpromised and underdelivered. For the price, I expected better performance and quieter operation. Not something I'd recommend based on my experience.
- Pros: It looks fairly nice in the room, blending in without being an eyesore, and I appreciate that it automatically adjusts its speed based on what it senses in the air, which saves some effort.
- Cons: From what I feel, it doesn't live up to the hype—the noise is still noticeable even on lower settings, and it hasn't made much difference with odors or my allergies, plus the reminders for maintenance feel more like nagging than helpful.