Avaliámos os principais purificadores de ar na Amazon.fr segundo 20 critérios essenciais, incluindo CADR, ACH, custo anual de funcionamento e nível de ruído.
This page is for anyone trying to find the best air purifier in 2026 — whether you're looking for the best air purifier for allergies, the best quiet air purifier for a bedroom, a budget air purifier under $100, or a powerful model for a large living room. We've ranked six leading models using 20 objective factors: CADR output, ACH rate, filter certification, noise at sleep speed, annual running cost, smart features, and long-term reliability. No brand pays for placement.
We evaluate each air purifier on 20 measurable factors across four categories:
We calculate CADR from published AHAM-certified figures where available, and independently verified ACH from room volume equations. Prices are checked regularly against live Amazon listings.
Classificados por pontuação global · Links de afiliado Amazon.fr
O referencial no seu preço. CADR de 410 CFM cobre 59 m², o sensor laser PM2.5 aciona um modo automático genuíno e a app VeSync é a melhor na categoria. Funciona a 24 dB no modo silencioso — genuinamente silencioso. Custo anual de filtros ~€40 torna-o a melhor escolha de custo total abaixo de €250.
✓ Best for: medium-large rooms (300–600 sq ft), allergy sufferers, smart home users
✗ Skip if: you need coverage above 635 sq ft or want a fan-cooler combo
The only sub-$250 model with a certified PM2.5 laser sensor — auto mode reacts to real particle data, not a basic LED sensor like the Coway.
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Uma década no mercado, ainda o purificador de ar mais recomendado na internet. CADR 246 CFM, modo automático, ionizador (desativável) e filtros de substituição por apenas €18. Cobre 33 m² a 4× ACH. Fiabilidade excecional a longo prazo com o menor custo de filtro desta comparação.
✓ Best for: budget buyers, anyone wanting proven long-term reliability, 300 sq ft rooms
✗ Skip if: you need app control, Wi-Fi, or coverage above 360 sq ft
Over a decade on sale with consistent 4.6★ ratings across 80,000+ reviews — no other model here has that longevity track record.
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285 CFM com filtro de carbono AOC lavável — o único modelo aqui com carbono reutilizável, poupando ~€30/ano. A tecnologia PlasmaWave neutraliza bactérias e COVs (desativável). Primeira escolha para lares com animais de estimação e fumo.
✓ Best for: pet owners, smokers, households with persistent odours
✗ Skip if: you need app control or want to avoid any ozone-producing technology
The washable AOC carbon filter is unique at this price — no other model here lets you reuse the carbon layer, saving ~$25–30/yr over disposable alternatives.
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CADR 440 CFM — o mais alto testado aqui — cobre 81 m² e proporciona 5× ACH numa sala de 50 m². Pré-filtro de tecido em várias cores. A app monitoriza a qualidade do ar exterior e pré-ajusta a velocidade antes da entrada de fumo. Premium mas justificado para espaços grandes.
✓ Best for: open-plan living areas, large bedrooms (500+ sq ft), wildfire-prone regions
✗ Skip if: filter cost is a concern — at ~$80/yr it's the most expensive to run here
Its outdoor air quality integration proactively raises fan speed before pollution enters — the only model here that acts preventatively rather than reactively.
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CADR 141 CFM, True HEPA, cobertura de 20 m² — e por menos de €100. O purificador compacto nº 1 na Amazon com mais de 130.000 avaliações. Filtração em 3 etapas captura 99,97% das partículas ≥0,3 microns. Para quartos até 18 m², nada o supera na relação preço-desempenho.
✓ Best for: small bedrooms (up to 200 sq ft), first-time buyers, minimal budget
✗ Skip if: your room is larger than 220 sq ft or you need auto mode with a particle sensor
130,000+ Amazon reviews make this the most crowd-validated air purifier at any price — real-world proof that no rival in this category can match.
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Purificador, ventilador e sensor PM2.5/PM10/COV/NO2 num único aparelho. O único modelo aqui com quatro sensores de poluentes e histórico em tempo real. O modo ventilador acrescenta valor real de arrefecimento. Caro com custos de filtros elevados, mas a app Dyson é a mais rica em dados disponível.
✓ Best for: tech enthusiasts, warm climates where fan cooling adds year-round value, data-driven users
✗ Skip if: you're noise-sensitive (40 dB sleep mode) or primarily need bedroom use
The only model here with four simultaneous pollutant sensors (PM2.5 + PM10 + VOC + NO2) — it detects what the others miss entirely.
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Os seis modelos lado a lado. Comparação completa →
| Model | Price | CADR | Coverage | Filter | Noise | Annual cost | Buy |
|---|---|---|---|---|---|---|---|
| Levoit Core 600S | €219 | 410 CFM | 635 sq ft | H13 True HEPA | 24 dB | ~$40 filters + $8 power | Ver na Amazon.fr |
| Coway Airmega AP-1512HH Mighty | €95 | 246 CFM | 360 sq ft | True HEPA | 30 dB | ~$18 filters + $7 power | Ver na Amazon.fr |
| Winix 5500-2 | €155 | 285 CFM | 360 sq ft | True HEPA + washable carbon | 27.8 dB | ~$25 filters + $9 power | Ver na Amazon.fr |
| Blueair Blue Pure 211i Max | €269 | 440 CFM | 870 sq ft | HEPASilent + carbon | 23 dB | ~$80 filters + $14 power | Ver na Amazon.fr |
| Levoit Core 300 | €95 | 141 CFM | 219 sq ft | True HEPA | 24 dB | ~$20 filters + $3 power | Ver na Amazon.fr |
| Dyson Purifier Cool TP07 | €529 | ~290 CFM est. | 800 sq ft | H13 HEPA + activated carbon | 40 dB | ~$90 filters + $15 power | Ver na Amazon.fr |
Cinco perguntas para encontrar o modelo certo.
Match CADR to room size: target ≥5× ACH for allergies, ≥2× for general use. A 300 sq ft bedroom needs ≥175 CFM CADR. Don't overbuy — a 600 CFM unit in a small room wastes energy. For an open-plan living/kitchen above 500 sq ft, only the Blueair 211i Max covers it properly.
Yes — always verify "True HEPA" (not "HEPA-type" or "HEPA-like"). True HEPA captures 99.97% of particles ≥0.3 microns. H13 medical-grade captures particles down to 0.1 microns — worth it for allergy and asthma sufferers. Every model ranked here uses True HEPA; we exclude anything that doesn't.
The sticker price is misleading. A $99 Coway with $18/yr filters costs less over 3 years than a $549 Dyson with $90/yr filters. Always calculate: purchase price + (filter cost × 3) + (watts × 26,280 hrs × $0.13). We show this figure for every model.
You need activated carbon — specifically substantial carbon weight (100g+ granular, not a thin mesh sheet). The Winix 5500-2's washable carbon is the best long-term value for pet owners. VOC and odour removal requires real carbon volume; budget models with thin carbon mesh barely help.
Anything above 35 dB on sleep mode will disturb light sleepers. The Levoit Core 300 (24 dB) and Core 600S (24 dB) are genuinely silent. Check both the sleep mode dB and whether the display can be turned off — many users overlook the LED glow issue until the unit is in their bedroom.
The five numbers that separate genuinely effective purifiers from marketing noise.
Clean Air Delivery Rate — the only standardised performance measure. Higher is better. Compare models by CADR, not marketing claims about room size.
Air Changes per Hour for your room. Allergy sufferers need 4–5×. Calculate: (CADR × 60) ÷ room cubic footage. Most manufacturers over-state room coverage.
Filters add more to lifetime cost than the purchase price for most models. Check OEM price, third-party availability, and change frequency before you buy.
Below 30 dB is truly quiet. 24 dB (Levoit) is whisper-silent. 40 dB (Dyson) is audible in a quiet room. The number on the spec sheet tells you more than reviews.
True HEPA = certified 99.97% at 0.3 µm. "HEPA-type" = uncertified, often only 85% efficient. Never pay for a HEPA-type filter — it's a marketing term without standards.
What does CADR mean on an air purifier?
CADR (Clean Air Delivery Rate) measures how many cubic feet of clean air the purifier produces per minute, certified by AHAM. A CADR of 200 CFM means 200 cubic feet of clean air every minute. Higher CADR = faster cleaning. Always match CADR to your actual room size rather than manufacturer coverage claims. See our full comparison table for CADR figures side by side.
How many air changes per hour do I need?
For general air quality, 2 ACH is sufficient. For allergy and asthma sufferers, aim for 4–5 ACH. Calculate ACH = (CADR × 60) ÷ room volume in cubic feet. Room volume = length × width × ceiling height. A 300 sq ft room with 8 ft ceilings (2,400 cu ft) needs a 200 CFM CADR minimum for 5 ACH.
What is the difference between True HEPA and HEPA-type?
True HEPA filters are independently tested and certified to capture 99.97% of airborne particles ≥0.3 microns, per NIOSH/DOE standards. "HEPA-type" or "HEPA-like" filters are not certified and typically capture only 85–90% of particles — far less effective, especially for PM2.5 and allergens. All six models in our ranking use True HEPA or H13 HEPA.
How often should I replace air purifier filters?
Most True HEPA filters need replacing every 6–12 months depending on usage and air quality. Pre-filters can often be vacuumed or rinsed every 2–4 weeks to extend HEPA life. Run the purifier 24/7 for best results — a dirty, clogged filter can harbour mould and bacteria, making the air quality worse. Filter replacement costs are listed for every model in our comparison table.
Are air purifiers worth it for wildfire smoke?
Yes — a True HEPA air purifier with activated carbon is one of the most effective strategies for reducing indoor PM2.5 and smoke particles during wildfire events. The Blueair Blue Pure 211i Max's app can proactively raise fan speed before smoke enters based on outdoor AQI monitoring. For emergency use, run on maximum speed and seal gaps under doors.
Which air purifier is best for allergies?
The Levoit Core 600S is our top pick for allergies — H13 True HEPA (captures to 0.1 µm), 410 CFM CADR, and a laser PM2.5 sensor that drives a responsive auto mode. The Coway AP-1512HH is the best budget allergy option and is AAFA (Asthma and Allergy Foundation of America) certified. Both provide 4× ACH or better in a 300 sq ft bedroom.
Which air purifier is quietest for a bedroom?
The Levoit Core 300 and Core 600S both measure 24 dB in sleep mode — genuinely inaudible to most people. The Blueair 211i Max measures 23 dB. For comparison, a whisper is approximately 30 dB. The Dyson TP07 at 40 dB is noticeably present in a quiet bedroom.
Which air purifier is best for pet hair and dander?
The Winix 5500-2 is our top choice for pet owners — its washable AOC carbon filter handles pet odours far better than disposable thin-mesh carbon, and the 285 CFM CADR captures pet dander at 4.5× ACH in a 300 sq ft room. The Levoit Core 300 also offers a pet-specific filter variant with enhanced odour control.
What is the best large room air purifier?
The Blueair Blue Pure 211i Max leads our large room category with 440 CFM CADR and published coverage of 870 sq ft. It provides 5× ACH in a 540 sq ft living room. No other model in our comparison comes close for large open-plan spaces.