Quick Answer
PuroAir 240 HEPA 14 Air Purifier

PuroAir 240 wins on filtration grade (H14) and bedroom noise (22 dB). Levoit Core 400S wins on CADR (240 CFM), smart features, and AHAM Verifide certification. Choose PuroAir for severe allergies; choose Levoit for smart homes and large rooms.

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At a Glance

#ProductAwardPriceOur Score
1
PuroAir 240 HEPA 14 Air PurifierPuroAir 240 HEPA 14 Air Purifier
Best Overall $199 9.2 Buy →
2
LEVOIT Core 400S Smart Air Purifier for Large RoomLEVOIT Core 400S Smart Air Purifier for…
Also Excellent $189 8.9 Buy →
3
PuroAir 400 HEPA 14 Air Purifier for Large RoomsPuroAir 400 HEPA 14 Air Purifier for La…
Best Value $269 8.5 Buy →
4
LEVOIT Core 600S Smart Air Purifier for Home Extra Large RoomLEVOIT Core 600S Smart Air Purifier for…
Budget Pick $239 8.2 Buy →

Showing 4 of 4 products

Our Top Pick
PuroAir 240 HEPA 14 Air Purifier

PuroAir 240 HEPA 14 Air Purifier

$199
at PuroAir
Best for: Bedrooms, offices, and medium rooms up to 500 sq ft

“The PuroAir 240 delivers genuine H14-grade filtration at a fraction of the cost of medical-grade units. Its HEPA 14 filter catches 99.99% of particles at 0.1 microns — outperforming standard True HEPA”

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What we like

  • H14 grade HEPA filters 99.99% of 0.1-micron particles — one grade above standard True HEPA
  • CADR 183 CFM dust / 181 CFM smoke / 204 CFM pollen (AHAM verified)
  • Quiet 22 dB sleep mode, whisper-quiet for bedrooms
  • Amazon #1 bestseller in air purifiers with 12,000+ reviews
  • Compact footprint fits easily on counters or floors

Watch out for

  • No smart WiFi or app control — manual controls only
  • Marketed coverage (1,000 sq ft) is overstated; real-world effective ~400–550 sq ft
  • Replacement filters ~$40/year, higher than some competitors
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The PuroAir 240 opens this comparison from a position of filtration-grade strength. HEPA 14 (99.99%/0.1 microns) vs Levoit's H13 (99.97%/0.3 microns) is a real spec difference — especially for sub-micron wildfire particles and ultra-fine allergens. Its CADR of 183/181/204 CFM is lower than the Levoit 400S (240/231/259 CFM), which means the Levoit cleans the same room 25–30% faster. That CADR gap matters in large rooms; in a typical 350–450 sq ft bedroom, both clean the air thoroughly at their respective fan speeds. The 22 dB sleep mode is 2 dB quieter than the 400S — perceptible difference in a silent room at 2am. At $159.99 versus $219.99 for the 400S, the PuroAir 240 offers H14 filtration at a significant price advantage. For allergy sufferers, bedroom use, and simplicity-preferring households, the 240 is the stronger value proposition.

Full Specs & Measurements
Cadr Dust183
Cadr Smoke181
Smart WifiFalse
Cadr Pollen204
Filter GradeHEPA 14 (H14)
Noise Max Db52
Noise Min Db22
Annual Filter Cost40
Coverage Real Sqft500
Coverage Claimed Sqft1000
Also Excellent
LEVOIT Core 400S Smart Air Purifier for Large Room

LEVOIT Core 400S Smart Air Purifier for Large Room

$189
at Amazon
Best for: Smart home users who want the highest-CADR purifier under $250 with app control

“The Core 400S is the benchmark smart air purifier — AHAM Verifide with 240+ CFM CADR and a mature app ecosystem. The only weakness is H13 vs H14 filtration grade, which matters mainly for ultra-fine p”

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What we like

  • Highest CADR in its class: 240/231/259 CFM (dust/smoke/pollen) — AHAM Verifide
  • Full smart ecosystem: VeSync app, Alexa, Google, auto mode with PM2.5 sensor
  • AHAM Verifide certification — independently verified performance, not marketing claims
  • Energy Star certified; sleep mode at 24 dB

Watch out for

  • H13 True HEPA (99.97%) vs PuroAir's H14 (99.99%) — marginal real-world difference
  • Higher price than PuroAir 240 with less filtration grade
  • Replacement filters ~$30-40 every 6-8 months
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The Levoit Core 400S counters with the highest CADR in its price class: 240/231/259 CFM, fully AHAM Verifide certified. That certification matters — it means an independent lab verified both the CADR numbers and room size ratings, unlike PuroAir which has AHAM-verified CADR but no full Verifide certification. The VeSync app is mature, with PM2.5 real-time monitoring, auto mode, scene scheduling, and Alexa/Google integration. For households with smart home systems, the seamless automation is genuinely useful. H13 True HEPA (99.97%) misses a fraction of ultra-fine particles compared to PuroAir's H14, but the higher CADR compensates by running more air changes per hour, delivering more cumulative particle removal. Annual filter cost (~$35) is lower than PuroAir 240 (~$40). At $219.99, the 400S commands a $60 premium that's justified if smart features and maximum CADR are the priority.

Full Specs & Measurements
Upc810043373685
AsinB08R794ZMX
ColorCream White
Wattage24 watts
Cadr Dust240
Brand NameLEVOIT
Cadr Smoke231
Smart WifiTrue
Unit Count1.0 Count
Cadr Pollen259
Energy StarTrue
Filter TypeActivated Carbon
Item Weight12.8 Pounds
Noise Level24 Decibels
Part NumberCore 400S
Filter ClassCarbon Filter
Filter GradeH13 True HEPA
ManufacturerLEVOIT
Model NumberCore 400S
Noise Min Db24
Power Sourceac
Aham VerifiedTrue
Coverage Sqft403
Control MethodVoice
Item Type NameFilter Removes Up to 99.97% of Particles, Pet Allergies, Smoke, Dust, Auto Mode, Alexa Control,
Controller TypeAmazon Alexa, Vera
Special Featuresair purifier alexa, air purifier smart, air purifier wifi, alexa air purifier, wifi air purifier
Best Sellers Rank#1,614 in Home & Kitchen (See Top 100 in Home & Kitchen) #11 in HEPA Filter Air Purifiers
Specification MetETL Certified, Energy Star Certified, FCC Certified
Annual Filter Cost35
Included Components1 x Air Purifier1 x 3-Stage Original Filter (Pre-Installed)1 x User Manual1 x Quick Start Guide
Particle Retention Size0.1 Micrometer
Smart Home CompatibilitySmart Home Compatible
Item Dimensions D X W X H10.8"D x 10.8"W x 20.5"H
Contaminant Filtration CapabilityParticles, Pollen, Dust, Gases
Global Trade Identification Number00810043373685
Best Budget
PuroAir 400 HEPA 14 Air Purifier for Large Rooms

PuroAir 400 HEPA 14 Air Purifier for Large Rooms

$269
at PuroAir
Best for: Large living rooms, open-plan spaces, and whole-floor air treatment up to 1,000 sq ft

“The PuroAir 400 steps up to handle genuinely large spaces with its higher CADR and same H14 filter standard. It outperforms similarly-priced smart purifiers on raw filtration spec, making it the right”

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What we like

  • HEPA 14 filtration rated for rooms up to 2,000 sq ft
  • Higher CADR than the 240 — handles open-plan living areas
  • Same H14 filter standard as medical and cleanroom applications
  • Handles wildfire smoke, cooking smoke, and fine PM2.5 particles
  • CarbonTech activated carbon layer for odors and VOCs

Watch out for

  • Premium price vs. competitors with similar CADR and smart features
  • No app connectivity or air quality display
  • Larger footprint requires more floor space
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The PuroAir 400 enters the large-room comparison against the Levoit Core 600S at a $30 price disadvantage ($249.99 vs $279.99) but a HEPA grade advantage (H14 vs H13). Its CADR of approximately 280 CFM is significantly below the 600S's 410 CFM — meaning the 600S cleans an equivalent room roughly 46% faster. However, each pass through the PuroAir 400's H14 filter removes a higher percentage of sub-micron particles. In a large open-plan room (600–1,000 sq ft) with ongoing pollution sources (cooking, pets), the 600S's throughput advantage wins. In a sealed large bedroom with severe allergy concerns, the 400's H14 filtration edge becomes meaningful. Neither model has smart features at this price point, which is a notable omission given Levoit's 600S at $279 includes full app control. If you need smart features in a large-room purifier, the 600S is the stronger overall package.

Full Specs & Measurements
Smart WifiFalse
Filter GradeHEPA 14 (H14)
Noise Max Db56
Noise Min Db24
Annual Filter Cost60
Coverage Real Sqft1000
Coverage Claimed Sqft2000
Best Budget
LEVOIT Core 600S Smart Air Purifier for Home Extra Large Room

LEVOIT Core 600S Smart Air Purifier for Home Extra Large Room

$239
at Amazon
Best for: Large open-plan living areas, combined kitchen/dining/living spaces over 500 sq ft

“If you have a genuinely large open room — 500 to 635 sq ft — the Core 600S is the most efficient way to clean it with a single unit. The 410 CFM CADR is class-leading at this price. For smaller rooms,”

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What we like

  • Highest CADR in Levoit lineup: 410 CFM — handles rooms up to 635 sq ft in 12 minutes
  • Largest effective coverage of any home air purifier under $300
  • Smart VeSync ecosystem with PM2.5 sensor, auto mode, and Alexa/Google support
  • AHAM Verifide; Energy Star; CARB certified for California
  • Floor-standing form factor with 360-degree air intake

Watch out for

  • Largest and heaviest of the Levoit lineup — less portable
  • Price premium over Core 400S for coverage increase only serious in very large rooms
  • H13 HEPA (99.97%) — same as other Levoit models, not H14
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The Levoit Core 600S is the CADR champion at $279.99: 410 CFM (dust/smoke equivalent) makes it the highest-throughput home air purifier under $300. AHAM Verifide certified with a 635 sq ft effective room rating at 5 ACH — genuinely useful for master suites, large home offices, and studio apartments. Smart features match the 400S: VeSync app, PM2.5 sensor, auto mode, Alexa/Google, CARB certified for California. H13 True HEPA means slightly lower per-pass filtration than PuroAir H14, but the 46% higher CADR means more total air passes per hour, delivering similar cumulative particle removal. The floor-standing design requires floor space (not countertop-deployable). Noise at 26 dB low is slightly higher than PuroAir 240's 22 dB. For large rooms where raw throughput is the priority and smart features are valued, the Core 600S is the definitive choice over any PuroAir model.

Full Specs & Measurements
Upc810043375214
AsinB09BJMY8HL
ColorWhite
Wattage66 watts
Cadr Cfm410
Brand NameLEVOIT
Floor Area3175 Square Feet
Smart WifiTrue
Unit Count1.0 Count
Energy StarTrue
Filter Type3-In-1 Filtration
Item Weight13.7 Pounds
Noise Level26 Decibels
Part NumberLAP-C601S-WUS
Filter ClassHEPA
Filter GradeH13 True HEPA
ManufacturerLEVOIT
Model NumberLAP-C601S-WUK
Noise Min Db26
Power Sourceac
Aham VerifiedTrue
Coverage Sqft635
Control MethodVoice
Item Type NameCore 600S-P
Controller TypeAmazon Alexa
Special FeaturesManual
Best Sellers Rank#1,614 in Home & Kitchen (See Top 100 in Home & Kitchen) #11 in HEPA Filter Air Purifiers
Specification MetCARB Certified, Energy Star Certified, FCC Certified
Annual Filter Cost40
Included Components1 × Smart Air Purifier 1 × 3-in-1 Original Filter (Pre-Installed) 1 × User Manual 1 × Quick Start Guide
Particle Retention Size0.1 Micron
Smart Home CompatibilitySmart Home Compatible
Item Dimensions D X W X H12.3"D x 12.3"W x 23.6"H
Contaminant Filtration CapabilityPM2.5, pollen, dust, animal dander
Global Trade Identification Number00810043375214

PuroAir vs Levoit Buying Guide

PuroAir vs Levoit 2026 — HEPA 14 vs H13 Compared Side by Side

Quick Verdict: Our top pick is the PuroAir 240 HEPA 14 Air Purifier (Our Top Pick) — H14 HEPA, 22 dB sleep, $159.99. Priced at $199.

## The Core Trade-Off: Filtration Grade vs. CADR and Smart Features

PuroAir and Levoit occupy the same market segment but with fundamentally different engineering priorities. PuroAir prioritizes filtration grade — all models use HEPA 14 (H14), capturing 99.99% of particles at 0.1 microns. Levoit prioritizes CADR and smart features — their Core 400S and 600S offer higher airflow rates with full smart home integration, but at H13 standard (99.97% at 0.3 microns).

For most households, the practical difference is this: Levoit moves more air through its filter per minute; PuroAir's filter catches finer particles with each pass. Both approaches clean air effectively. The decision comes down to your specific situation.

## When PuroAir Wins

Choose PuroAir if: You have severe allergies, asthma, or respiratory conditions where ultra-fine particle removal (sub-0.3 micron) makes a clinical difference. You live in a wildfire-prone area where fine PM2.5 combustion particles are a seasonal concern. You prefer simpler operation without app dependency. You're furnishing a bedroom where the 22 dB sleep mode (quietest of the group) is the priority.

The PuroAir 240 at $159.99 offers H14 filtration at a price that's $60 less than the Levoit 400S — a strong value proposition for the filtration-grade-focused buyer.

## When Levoit Wins

Choose Levoit if: CADR matters most — the Core 400S delivers 240 CFM dust CADR vs the PuroAir 240's 183 CFM, meaning it cleans the same room faster. You want smart home integration: VeSync app, Alexa, Google Assistant, auto mode with PM2.5 monitoring. You want AHAM Verifide full certification (coverage AND CADR independently verified). You have a large room over 500 sq ft where the 600S's 410 CFM CADR genuinely outpaces any PuroAir model.

## The 400 vs 600S Large Room Battle

For large rooms (600–1,000 sq ft), this is the most interesting comparison. The PuroAir 400 has higher real-world effective coverage due to H14 filtration (more efficient per-pass cleaning), while the Levoit 600S has higher CADR (410 vs ~280 CFM) for faster total room cleaning. Our analysis: in a large bedroom or master suite where you run the purifier continuously, either choice is adequate. In an open-plan living space with frequent new pollutants (cooking, pets, traffic), the 600S's higher throughput wins. In a sealed bedroom with severe allergies, the 400's H14 edge is meaningful.

## Price and Long-Term Cost

Over 5 years (including filters), the PuroAir 240 costs approximately $360 total; the Levoit Core 400S approximately $395. The cost difference is modest — choose on features, not price.

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Watch Before You Buy

Frequently Asked Questions

Is PuroAir HEPA 14 better than Levoit H13?
HEPA 14 captures 99.99% of particles at 0.1 microns; H13 captures 99.97% at 0.3 microns. The difference is meaningful for ultra-fine particles and viral aerosols, but negligible for everyday dust, pollen, and pet dander. If you have severe respiratory conditions or frequent wildfire smoke exposure, HEPA 14 is the better choice. For general air quality improvement, H13 Levoit models perform equivalently.
Which has better CADR — PuroAir or Levoit?
Levoit wins on CADR. The Levoit Core 400S (240 CFM) and Core 600S (410 CFM) both exceed the PuroAir 240 (183 CFM) and PuroAir 400 (~280 CFM) on dust CADR. Higher CADR means the same room is cleaned faster with more air changes per hour. If room cleaning speed is the priority, Levoit is the better choice.
Does PuroAir have app control?
The PuroAir 130i Smart and 100i Smart models have WiFi and app control. The flagship PuroAir 240 and 400 do not — they're manual-only. Levoit's entire 400S and 600S lineup includes VeSync app control, PM2.5 sensors, and Alexa/Google integration.
Which is better for wildfire smoke — PuroAir or Levoit?
For wildfire smoke, HEPA 14 (PuroAir) has a genuine edge over H13 (Levoit). Wildfire smoke contains high concentrations of sub-0.3 micron particles where the H14 vs H13 filtration difference matters most. The PuroAir 400's combination of H14 filtration and high CADR makes it the better smoke purifier. Run it with activated carbon for VOC and odor control.
How do PuroAir and Levoit compare on noise?
PuroAir 240 is the quietest at 22 dB on low; Levoit Core 400S runs 24 dB. Both are suitable for bedroom use. The Levoit 600S is slightly louder at 26 dB due to its larger fan. For light sleepers, the PuroAir 240's 2 dB advantage in sleep mode is the best available at this price tier.

How We Analyze Products

We analyze Amazon review data — often thousands of reviews per product — to surface patterns that individual buyers miss. Our process aggregates star ratings, review counts, and buyer sentiment at scale, identifying which strengths and weaknesses appear consistently across the largest review samples available. The 24,516+ reviews analyzed on this page represent real verified-purchase feedback from Amazon buyers.

Each product earned its placement through data: total review volume, average rating, and the specific praise and complaints that repeat most often across buyers. No manufacturer paid for placement on this page. Products appear here because buyers endorsed them at scale, not because a company asked us to feature them.

We use AI to summarize review sentiment — not to fabricate opinions, but to condense what thousands of buyers actually wrote into a readable format. The pros and cons you see reflect the most common themes found in verified purchaser reviews, paraphrased for clarity. We do not claim to have accessed Reddit, YouTube, or specific publications in generating these summaries.

Prices shown reflect Amazon pricing at the time this page was last generated. Click “See Today’s Price” to get the current live price on Amazon. Read our full methodology →

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