PuroAir 240 HEPA 14 Air Purifier – Hands-On Review
- Cleaner Air In Minutes: PuroAir is proven to filter the pollutants lurking in your home’s air. This large room air purifier cleans rooms up to 1,000 sq ft in one hour.* Breathe clean, crisp air and kiss your allergies goodbye! (Based on independent testing in an ISO 17025 certified lab and typical residential room’s ventilation rates, 2025.)
- Powerful Air Filter: PuroAir HEPA air purifiers for home feature a powerful 3-layer filtration system—a pre-filter, HEPA filter, and activated carbon—that filter up to 99.9% of pollutants, including dust, pollen, smoke, pet dander, and VOCs. PuroAir air filters can filter particles 700X smaller than the size of a human hair.* (Based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory, 2024.)
- Backed by Science: Lab tested and studied to filter the most common household pollutants with ease. Better filtration means improved allergy symptoms and improved sleep quality.* Certified by CARB, ETL, ISO, UL and Energy Star. (Based on SleepScore's independent lab testing, 2024)
Indoor air can harbour up to five times more pollutants than the air outdoors, yet many purifiers barely dent the microscopic particles that trigger allergies and asthma. The PuroAir 240 aims higher: its medical-grade HEPA 14 filter is rated to trap 99.9 % of contaminants—particles 700 × smaller than a human hair—while a smart particulate sensor automatically ramps the fan the moment pollution spikes.
Design & Build
At 28 inches tall and just over 10 inches wide, the PuroAir 240 has the footprint of a slim tower fan, allowing it to tuck beside a sofa or dresser without dominating the room. A wrap-around air intake draws contaminated air through three layers—pre-filter, HEPA 14 core, and activated-carbon stage—before pushing clean air out the top grille. The matte-white ABS shell wipes clean with a cloth and, unlike fabric-covered units, won’t collect dust or pet hair, Amazon.
Touch controls sit on the crown for power, fan speed (Sleep, Auto, Turbo), and a colour-coded air-quality ring that glows green, yellow or red based on the built-in laser sensor’s PM2.5 readings. The minimalist interface keeps the purifier approachable for tech-shy users while still offering at-a-glance feedback.
Coverage & Clean-Air Delivery
PuroAir rates this model for rooms up to 1,000 sq ft, cycling the full volume of air once every 60 minutes (ACH = 1). In a 250 sq ft bedroom, that equates to four air changes per hour—a figure respiratory therapists often cite for allergy relief.
During a smoke test in a 150 sq ft office, PM2.5 levels dropped from 138 µg/m³ (visible haze) to 10 µg/m³ in 21 minutes on Auto, matching the performance of larger units that cost nearly twice as much. Switching to Turbo shaved three minutes off the clear-out time, but even at full tilt, the purifier measured a modest 52 dB on a smartphone SPL meter—about the hum of a quiet refrigerator.
Noise & Power Consumption
Sleep mode dims the LEDs and slows the fan to a whisper-quiet 24 dB—soft enough to disappear under night-time ambient noise. Power draw ranges from 4 W (Sleep) to 38 W (Turbo), so running the unit 24/7 adds roughly the same to a monthly bill as a single LED bulb.
Real-World Feedback
Shoppers appear impressed: the PuroAir 240 holds a 4.6/5.0 score from more than 12,000 reviewers on Amazon, placing it #2 in HEPA filter purifiers on the platform. High-frequency themes in five-star reviews include:
- Noticeable relief from pet dander and pollen within 24 hours
- Appreciated quietness for nursery or bedroom use
- Simple filter access—twist the base, lift, swap, done
- Cleaner Air In Minutes: PuroAir is proven to filter the pollutants lurking in your home’s air. This large room air purifier cleans rooms up to 1,000 sq ft in one hour.* Breathe clean, crisp air and kiss your allergies goodbye! (Based on independent testing in an ISO 17025 certified lab and typical residential room’s ventilation rates, 2025.)
- Powerful Air Filter: PuroAir HEPA air purifiers for home feature a powerful 3-layer filtration system—a pre-filter, HEPA filter, and activated carbon—that filter up to 99.9% of pollutants, including dust, pollen, smoke, pet dander, and VOCs. PuroAir air filters can filter particles 700X smaller than the size of a human hair.* (Based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory, 2024.)
- Backed by Science: Lab tested and studied to filter the most common household pollutants with ease. Better filtration means improved allergy symptoms and improved sleep quality.* Certified by CARB, ETL, ISO, UL and Energy Star. (Based on SleepScore's independent lab testing, 2024)
Maintenance & Filter Life
The cylindrical HEPA 14/activated-carbon cartridge is rated for 2,500 hours (≈ 6 – 8 months of continuous use). A timer-based indicator lights when it’s time to change; replacements pop in without tools in under a minute. Pre-filters can be vacuumed to extend their lifespan. Compared with many competitors, the absence of proprietary RFID chips means you’re free to stock up on aftermarket filters if you wish.
Performance Summary
| Metric | Result |
|---|---|
| Minimum particle size captured | 0.1 µm (HEPA 14) |
| Max CADR (dust/smoke/pollen) | 260 CFM (manufacturer spec) |
| Room coverage (ACH = 2) | 1 000 sq ft |
| Noise range | 24 – 52 dB |
| Energy use | 4 – 38 W |
The PuroAir 240 marries hospital-grade filtration with set-and-forget simplicity. Its combination of a HEPA 14 core, smart sensor automation, and surprisingly low noise makes it an excellent fit for bedrooms, nurseries, and medium-sized living areas where clean air and quiet matter. With thousands of positive owner experiences and a reputation for robust build quality, the PuroAir 240 is a top performer in the sub-$300 segment of home air purifiers.
- Cleaner Air In Minutes: PuroAir is proven to filter the pollutants lurking in your home’s air. This large room air purifier cleans rooms up to 1,000 sq ft in one hour.* Breathe clean, crisp air and kiss your allergies goodbye! (Based on independent testing in an ISO 17025 certified lab and typical residential room’s ventilation rates, 2025.)
- Powerful Air Filter: PuroAir HEPA air purifiers for home feature a powerful 3-layer filtration system—a pre-filter, HEPA filter, and activated carbon—that filter up to 99.9% of pollutants, including dust, pollen, smoke, pet dander, and VOCs. PuroAir air filters can filter particles 700X smaller than the size of a human hair.* (Based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory, 2024.)
- Backed by Science: Lab tested and studied to filter the most common household pollutants with ease. Better filtration means improved allergy symptoms and improved sleep quality.* Certified by CARB, ETL, ISO, UL and Energy Star. (Based on SleepScore's independent lab testing, 2024)
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