Prices in euros from Amazon.de, as of 11 June 2026. Prices and availability may differ on Amazon.co.uk.
An air purifier in the bedroom has to do one thing above all: be quiet. We compared six compact HEPA units that run at between 19 and 25 dB in sleep mode, sorted by cleaning performance (CADR), room size, noise, filter costs and smart features such as auto mode and pollen sensor. From the €60 mini solution to the allergy unit with pet mode, all listed on Amazon.de.
Reasoning and all data in the table below
As an Amazon Associate I earn from qualifying purchases.
Editorial rating based on manufacturer specs and Amazon catalogue data. We do not trial products ourselves. How we rate
| Model | Position | CADR | Room size | Noise level | Filter | Power | Price | Rating | Recommendation |
|---|---|---|---|---|---|---|---|---|---|
 01 · Levoit Core 300S★ 22 dB + auto mode |
Bedroom pick | 240 m³/h | up to 50 m² | 22 to 50 dB | HEPA + activated carbon | 23 W | from €127 | 8,6 |
Check price ↗ |
 02 · Levoit Vital 100SPet mode · 243 m³/h |
Allergy pick | 243 m³/h | up to 52 m² | 23 to 52 dB | 3-stage + washable | 32 W | from €136 | 8,4 |
Check price ↗ |
 03 · Philips 600 Series AC0650/1019 dB quiet mode |
Quietest | 170 m³/h | up to 44 m² | 19 to 49 dB | NanoProtect HEPA | 12 W | from €70 | 8,3 |
Check price ↗ |
 04 · Winix Zero SWhole flat · H13 |
H13 premium | 410 m³/h | up to 100 m² | 27 to 51 dB | H13 certified | 3 to 70 W | from €221 | 8,1 |
Check price ↗ |
 05 · Xiaomi Smart Air Purifier 4 CompactPM2.5 live · App |
Smart budget | 230 m³/h | 16 to 27 m² | ~20 to 60 dB | 3-in-1 + sensor | 27 W | from €85 | 7,9 |
Check price ↗ |
 06 · Levoit Core MiniMini · under €60 |
Budget pick | approx. 58 m³/h | up to ~15 m² | 25 to 44 dB | 3-in-1 HEPA | 7 W | from €60 | 7,2 |
Check price ↗ |
Which air purifier suits which bedroom, allergy profile and budget.
The all-rounder for the bedroom: practically inaudible in sleep mode at 22 dB, display can be switched off completely, and the PM2.5 sensor adjusts itself in auto mode, for example during pollen season or cooking smells. CADR 240 m³/h is enough for rooms up to 50 m², and app, Alexa and Google are on board. ECARF-certified (European allergy-friendly seal) and ozone-free.
The most powerful unit in the comparison, built for allergy sufferers: pet mode catches airborne pet hair and dander in intervals, and the washable pre-filter extends the filter life to 8 to 12 months. Clever for the bedroom: a light sensor switches display and LEDs off completely in the dark, and sleep mode runs at 23 dB.
No appliance in the comparison is as unobtrusive at night: 19 dB in quiet mode, plus only 12 watts of consumption and one filter change per year (about €30), the lowest running costs in the field. In return you do without sensor and auto mode: you choose the three levels manually or by schedule in the Air+ app.
The only certified H13 filter in the comparison (99.999% separation), the benchmark for allergy sufferers with strong symptoms. With CADR 410 m³/h it covers the whole small flat with doors open, and the auto mode reacts via dust and odour sensor to cooking fumes too. No app, but a washable pre-filter and only one filter change per year.
Nobody else offers this much smart equipment for under €90: OLED touch display with live PM2.5 reading, auto mode, Mi Home app with Alexa and Google. CADR 230 m³/h for 16 to 27 m², the size of typical bedrooms and small living rooms. Replacement filters cost only around €20.
The honest entry-level solution for the small bedroom: light at 1 kg, economical at 7 watts, quiet enough on level 1 at 25 dB for the bed next to it, plus an aroma pad for scented oils. Without app, sensor and timer, but under €60. Realistic for rooms up to about 15 m²; for the living room it is too small.
Under 25 dB in sleep mode, and the display must be switchable off, otherwise the light disturbs more than the noise. The Philips 600 Series is the quietest in the comparison at 19 dB, with the Levoit Core 300S (22 dB) and the Vital 100S (23 dB, with light sensor) just behind.
Every HEPA filter in the comparison reliably holds back pollen, which at 5 to 100 µm are comparatively large particles. The difference is made by the auto mode: units with a particle sensor such as the Core 300S or Vital 100S automatically speed up when pollen comes in while airing. If you want maximum tightness, take the Winix Zero S with a certified H13 filter (99.999%). Practical tip for allergy sufferers: air the room briefly in the morning, then let the purifier run on auto.
CADR (Clean Air Delivery Rate) is the volume of cleaned air per hour in m³. Rule of thumb: the purifier should circulate the room volume 2 to 3 times per hour. A 15 m² bedroom (about 37 m³) therefore needs 75 to 115 m³/h, which every unit in the comparison manages except the Core Mini on a low, quiet setting. For 25 m²+, 230 m³/h upwards (Xiaomi, Core 300S, Vital 100S) is the right league.
Two items: electricity and filters. At 7 to 32 watts, typical operation (at night plus a few daytime hours) costs €5 to €25 in electricity per year. The filters are more expensive: €18 to €40 each, with a life of 6 to 12 months. The Philips 600 Series works out cheapest (1 filter/year at €30; 12 W); among the Levoits, the Vital 100S is more economical than its price suggests thanks to the washable pre-filter.
More important than the app is the sensor with auto mode: it regulates the output itself, without you ever having to think about the unit. The app is worthwhile for schedules (for example starting an hour before bedtime) and voice assistants. If you need neither, you save with the Core Mini, but then have to switch manually.
tado°, AVM, Bosch, Eve: save up to 18% on heating costs, without drilling in a rented flat.
View comparison → CategoryAir purifiers, dehumidifiers, portable air conditioners and thermostats: the whole category.
Open category → Guide · 13 minWhich compact appliances really make a difference in a small flat, with a budget plan.
Read guide → Guide · 7 minWhat continuous runners such as air purifiers really cost, and where saving is worthwhile.
Read guide →6 additional air purifiers from the current Amazon catalogue, with data sheet values and an editorial assessment.
Torn between two specific models? Here is the direct comparison: