BLUEAIR 3131000000 Air Purifier: HEPASilent dual filtration technology
Meet the Blueair Blue Pure 511—the little air purifier that could. It's Blueair's most compact model, but don't let its size fool you. Thanks to that nifty HEPASilent™ tech (exclusive to Blueair, by the way), it can freshen up a 432sqft space in just 30 minutes. Got a cozy 180sqft room? It'll have that feeling crisp in about 12.5 minutes.* Simple to use? Check. Powerful? Absolutely. And with its sleek design and quiet operation, it's perfect for tucking into your bedroom or office without a fuss.
- On its highest fan speed, this little powerhouse delivers clean air like a champ. (Yeah, we're talking CADR based on AHAM AC-1 standards.)
- Ever wondered about air changes per hour (ACH)? It's basically how much fresh air gets swapped into a room over time. This purifier's got that covered.
- At its quietest, it's about as loud as a whisper—around 30 dB. So, no, it won't keep you up at night.
- We put it to the test against PM 2.5 particles (those pesky 0.1 - 2.5 micron ones), and it passed with flying colors in up to 90 minutes.
- And just so you know, when we say 'light bulb,' we mean an LED one that sips just 40 watts. Because who's got time for high energy bills?
Features
- Compact for fresh air
- Powerful yet whisper-silent
- Personalizable design
- Efficient and compact
- Blueair replacement filter
- Let’s clear the air with Blueair
- Air changes per hour (ACH): 4.8
- HEPASilent dual filtration technology
General specs
- Brand: BLUEAIR
- Model: 3131000000
- Seller: Amazon
- ID: B08KPJCDN6
- Product Dimensions: 7.9"D x 7.9"W x 13.9"H
- Floor Area: 432 Square Feet
- Specification Met: Energy Star Certified
- Noise Level: 24 dB
- Particle Retention Size: 0.03 Percentage
- Controller Type: Button Control
- upc: 689122023182
- manufacturer: Blueair
- Item Weight: 5.24 pounds
- Country of Origin: China
- Item Model Number: 3131000000
- Care Instructions: Hand Wash
- Assembly Required: No
- Number of Pieces: 1
- Batteries Required: No
- Included Components: Air Purifier, installed filter, fabric pre-filter
- First listed by seller: 6/15/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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$99.99
Last price update: 11/9/25
Available to order
Price History for seller Amazon
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| Brand | BLUEAIR | LEVOIT | AIRROMI | Jafända | AIRROMI | Dkenicor |
| Model | 3131000000 | LV-H132 | A2005-Purple | JF180 Grey Air Purifiers | A2005 | HEPA |
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| Price | $99.99 | $89.99 | $25.64 | $69.99 | $26.99 | $149.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 |
| Product Dimensions | 7.9"D x 7.9"W x 13.9"H | 7.9"D x 7.9"W x 12.6"H | 6.5 x 6.5 x 10.6 inches | 11.37 x 6.7 x 9.8 inches | 15.35 x 15.35 x 29.9 inches | |
| Noise Level | 24 dB | 28 dB | 22 decibels | 22 | 36dB in sleep mode | |
| Weight | 2.61 Pounds | 5.73 Pounds | 2.61 | |||
| Coverage Area | Up to 549 sq.ft | 780 sq.ft | 549 | Up to 5000 square feet | ||
BLUEAIR 3131000000 HEPASilent dual filtration technology
$99.99
