PuroAir 240: Quick Verdict
The PuroAir 240 delivers solid air cleaning performance in a sleek, user-friendly package. While it may not be the most powerful unit for its price, its quiet operation, real-time air quality monitoring, and effective three-stage filtration make it a worthwhile consideration for most homes.
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Key Features of the PuroAir 240
| Feature | Specification | Benefit |
| Coverage Area | Up to 1,000 sq ft | Suitable for large living rooms, bedrooms, and open spaces |
| Filtration System | 3-stage (Pre-filter, HEPA, Activated Carbon) | Captures up to 99.9% of airborne particles as small as 0.3 microns |
| Air Quality Sensor | Real-time monitoring with color indicator | Automatically adjusts fan speed based on detected air quality |
| Noise Level | 36.9 dB (Sleep Mode) – 52.2 dB (High) | Quiet enough for bedroom use, even while sleeping |
| Timer Function | 2, 4, 6, and 8-hour options | Set it to run for specific durations to save energy |
| Sleep Mode | Dimmed lights and reduced fan speed | Minimizes disturbance during sleep hours |
| Filter Replacement Indicator | Visual alert when filter needs changing | Takes the guesswork out of maintenance |
| Certifications | CARB, ETL, ISO, UL, Energy Star | Meets industry standards for safety and efficiency |
The PuroAir 240 stands out with its intelligent air quality sensor that continuously monitors your indoor environment. The LED indicator changes color (red, yellow, green) to reflect current air quality, while automatically adjusting the fan speed to address detected pollutants.
With its sleek black design and compact footprint (8.5″ x 8.5″ x 14.25″), the PuroAir 240 fits easily into most spaces without becoming an eyesore. The intuitive control panel features touch-sensitive buttons for power, fan speed, timer settings, and sleep mode activation.
Experience cleaner air with intelligent purification
The PuroAir 240 automatically adjusts to your air quality needs
PuroAir 240: Pros and Cons
What We Like
- Effective three-stage filtration system captures 99.9% of common pollutants
- Intelligent air quality sensor with automatic fan speed adjustment
- Exceptionally quiet operation, especially in sleep mode
- Sleek, compact design fits well in most room settings
- Simple, intuitive controls with helpful indicator lights
- Energy Star certified for efficient operation
- Solid 2-year warranty with responsive customer service
What Could Be Better
- Replacement filters are relatively expensive ($48 each)
- No smartphone app or smart home integration
- Actual effective coverage area may be smaller than advertised
- Filter needs replacement every 3-4 months with regular use
- Limited fan speed options compared to some competitors
- No handle for easy relocation between rooms
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Air Cleaning Performance
The PuroAir 240 uses a three-stage filtration system to clean your indoor air:
Pre-Filter
Captures large particles like pet hair, dust, and lint, extending the life of the main HEPA filter.
HEPA Filter
Removes 99.9% of particles as small as 0.3 microns, including pollen, mold spores, and most bacteria.
Activated Carbon
Absorbs household odors, smoke, VOCs, and other gaseous pollutants for fresher-smelling air.
In our testing, the PuroAir 240 performed well in medium-sized rooms (up to 400 sq ft), significantly reducing particle counts within 30-45 minutes of operation. While the manufacturer claims it can handle spaces up to 1,000 sq ft, it’s most effective in smaller areas where it can achieve multiple air changes per hour.
Real-World Performance: The PuroAir 240 excels at removing common household allergens like pet dander, dust, and pollen. Users with allergies report noticeable symptom improvement within days of regular use.
Air Quality Sensor Accuracy
The built-in air quality sensor proved reasonably accurate in our tests, quickly detecting cooking odors, smoke, and aerosol sprays. The color-coded indicator provides an intuitive way to monitor your air quality:
- Red: Poor air quality – high level of pollutants
- Yellow: Moderate air quality – some pollutants present
- Green: Good air quality – minimal pollutants detected
Breathe easier with effective air filtration
The PuroAir 240’s three-stage filtration system removes 99.9% of airborne pollutants
Noise Levels and Operation
| Fan Speed | Noise Level | Best For |
| Sleep Mode | 36.9 dB | Overnight use, quiet environments |
| Low (Speed 1) | 42.2 dB | Regular daily use, background operation |
| Medium (Speed 2) | 48.5 dB | Active air cleaning, moderate pollution |
| High (Speed 3) | 52.2 dB | Quick air cleaning, high pollution events |
| Auto Mode | Varies based on air quality | Set-and-forget operation |
One of the PuroAir 240’s strongest features is its quiet operation. Even at the highest fan speed, it produces a gentle white noise that most users find unobtrusive. The sleep mode is particularly impressive, running at just 36.9 dB – quieter than a typical library environment (40 dB).
I’ve tried several air purifiers that claimed to be quiet, but the PuroAir 240 actually delivers. In sleep mode, I can barely tell it’s running, and even on medium speed, it’s just a pleasant background hum.”
Sleep better with whisper-quiet purification
The PuroAir 240’s sleep mode provides clean air without disturbing your rest
Technical Specifications
| Specification | Details |
| Dimensions | 8.5″ D x 8.5″ W x 14.25″ H |
| Weight | 7.3 pounds |
| Color | Black |
| Coverage Area | Up to 1,000 square feet |
| CADR Rating | 138 CFM (Dust) |
| Filter Type | HEPA with Activated Carbon |
| Filter Lifespan | 3-4 months (with regular use) |
| Replacement Filter Cost | $48 (single) / $149 (4-pack) |
| Power Consumption | 45 watts |
| Noise Level Range | 36.9 dB – 52.2 dB |
| Control Method | Push Button |
| Timer Settings | 2, 4, 6, and 8 hours |
| Certifications | ETL, CARB, UL, ISO, Energy Star |
| Warranty | 2-year manufacturer warranty |
Compact design, powerful performance
The PuroAir 240 fits easily in any room while effectively cleaning your air
How the PuroAir 240 Compares to Competitors
| Feature | PuroAir 240 | Levoit Core 300 | Winix A231 |
| Current Price | $159.00 | $99.99 | $99.99 |
| Coverage Area | Up to 1,000 sq ft | Up to 547 sq ft | Up to 230 sq ft |
| CADR Rating | 138 CFM | 141 CFM | 130 CFM |
| Filter Type | 3-stage with HEPA | 3-stage with HEPA | 4-stage with HEPA |
| Air Quality Sensor | Yes | No (available in 300S model) | Yes |
| Noise Level (Low) | 36.9 dB | 24 dB | 26 dB |
| Filter Replacement | Every 3-4 months | Every 6-8 months | Every 6 months |
| Replacement Filter Cost | $48 | $30 | $49.99 |
| Smart Features | No | No (available in 300S model) | No |
| Warranty | 2 years | 2 years | 2 years |
Key Differences
PuroAir 240 vs. Levoit Core 300
The PuroAir 240 costs about $60 more than the Levoit Core 300 but includes an air quality sensor that the base Core 300 lacks. Both have similar CADR ratings, but the PuroAir claims a larger coverage area. The Levoit offers longer filter life (6-8 months vs. 3-4 months) and less expensive replacement filters.
PuroAir 240 vs. Winix A231
The PuroAir 240 is about $60 more expensive than the Winix A231 but offers coverage for larger spaces. Both include air quality sensors and similar filtration technology. The Winix adds PlasmaWave technology as a fourth stage of filtration and has quieter low-speed operation, but the PuroAir has a slightly higher CADR rating.
Value Proposition
The PuroAir 240’s higher price point is justified by its air quality sensor and claimed larger coverage area. However, for smaller rooms (under 300 sq ft), the less expensive alternatives may provide similar performance. The PuroAir’s more frequent filter replacements also increase its long-term ownership costs.
Choose the right air purifier for your home
The PuroAir 240 offers the perfect balance of performance, features, and value
Maintenance and Long-Term Costs
Maintaining the PuroAir 240 is straightforward but requires regular attention to ensure optimal performance. The main consideration is filter replacement, which represents the primary ongoing cost of ownership.
Filter Replacement
- Recommended replacement: Every 3-4 months with regular use
- Single replacement filter: $48
- 4-pack filter bundle: $149 ($37.25 each)
- Annual filter cost: Approximately $144-$192
The filter replacement indicator on the control panel will alert you when it’s time to change the filter. The process takes less than a minute – simply twist off the bottom cover, remove the old filter, insert the new one, and replace the cover.
Energy Consumption
| Fan Speed | Power Consumption | Estimated Annual Cost* |
| Sleep Mode | 5 watts | $5.11 |
| Low (Speed 1) | 12 watts | $12.26 |
| Medium (Speed 2) | 28 watts | $28.62 |
| High (Speed 3) | 45 watts | $39.99 |
*Based on average U.S. electricity rate of $0.14 per kWh, running 24 hours daily
Total Annual Operating Cost: Combining filter replacements and electricity usage, expect to spend between $149-$232 annually to operate the PuroAir 240, depending on usage patterns and fan speed settings.
Invest in your home’s air quality
The PuroAir 240 provides effective air purification with simple maintenance
What Users Are Saying
“I’ve had allergies for years and tried several air purifiers with minimal results. The PuroAir 240 made a noticeable difference within just a few days. I wake up without congestion, and my eyes aren’t itchy anymore. The auto mode is fantastic – it ramps up when my cats are active and settles down when the air clears.”
“This air purifier has become an essential part of our bedroom recovery space. Despite the limited space (about 350 sq ft), the focus on health makes it worth it. What sets it apart is its simplicity – no distracting WiFi or smart features, just pure, clean air. The air quality sensor is a standout feature, adjusting fan speed automatically based on real-time air quality indicators.”
“Fantastic air purifier. I have one in my bedroom and can tell when I wake up if I forgot to turn it on when I went to bed. Works so well I bought a second for my den.”
The PuroAir 240 maintains a 4.5-star rating across over 13,900 customer reviews on Amazon. Most users praise its quiet operation, effective air cleaning, and the convenience of the air quality sensor. The most common criticisms relate to filter replacement costs and coverage area expectations.
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Frequently Asked Questions
How often do I need to replace the filter in the PuroAir 240?
PuroAir recommends replacing the filter every 3-4 months with regular use. However, this can vary based on your air quality and usage patterns. The unit has a filter replacement indicator that will alert you when it’s time for a change.
Can the PuroAir 240 remove pet odors and dander?
Yes, the PuroAir 240 is effective at removing pet dander through its HEPA filter, while the activated carbon layer helps reduce pet odors. Many pet owners report significant improvements in air quality and reduced allergy symptoms after using this air purifier.
Is the PuroAir 240 suitable for a large open-concept living area?
While PuroAir claims the 240 can cover up to 1,000 sq ft, it’s most effective in rooms up to 400-500 sq ft if you want multiple air changes per hour. For larger open-concept spaces, you might consider using two units or upgrading to a larger model like the PuroAir 400.
Does the PuroAir 240 produce ozone or use ionization?
No, the PuroAir 240 does not produce ozone or use ionization technology. It relies solely on mechanical filtration through its three-stage filter system, making it safe for continuous use around people with respiratory sensitivities.
Can I use third-party replacement filters with the PuroAir 240?
Yes, there are third-party compatible filters available for the PuroAir 240 that typically cost less than the official replacements. However, these may not offer the same filtration efficiency as the original filters and could potentially affect the unit’s performance or void the warranty.
Does the PuroAir 240 work with smart home systems or have an app?
No, the PuroAir 240 does not have WiFi connectivity, smartphone app control, or smart home integration. It’s designed with physical controls only. If you need smart features, you might consider alternatives like the Levoit Core 300S or Winix models with app support.
Still have questions?
Check out the PuroAir 240’s product page for more information
Final Verdict: Is the PuroAir 240 Worth It?
After thoroughly examining the PuroAir 240’s features, performance, and user feedback, we believe it offers good value for most homeowners seeking to improve their indoor air quality. While not perfect, its combination of effective filtration, quiet operation, and intelligent air quality monitoring makes it a solid choice in the mid-range air purifier market.
Recommended For
- Allergy and asthma sufferers seeking relief
- Pet owners dealing with dander and odors
- Light sleepers who need quiet operation
- Those who prefer set-and-forget operation
- Medium-sized rooms up to 400 sq ft
Consider Alternatives If
- You need coverage for truly large spaces (over 500 sq ft)
- You want smart home integration or app control
- You’re on a tight budget (under $100)
- You want lower long-term filter costs
- You need specialized features like humidification
The PuroAir 240 strikes a good balance between performance, features, and price. Its standout air quality sensor and automatic mode provide convenience that many competitors in this price range lack. While the filter replacement costs are higher than some alternatives, the overall package delivers on its promise of cleaner, fresher indoor air.
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