Skip to content

Select and compare

Bosch Air 2000 vs. Bosch Air 4000i compared

Air Purifier

At a glance

The key numbers for both devices side by side.

Overall rating
83Gut
81Gut
Value for money
90Excellent
81Excellent
Best price
€128.60€149.99−14 %
€219.06
Price advantage
€90.46 cheaper
—
Offers
1 shop
1 shop
Rank in category
Rank 9 of 54
Rank 12 of 54

Rating

Sub-ratings compared

Bosch Air 2000Overall rating 83Bosch Air 4000iOverall rating 81
CleaningperformanceNoise levelAutomode & sensorsRunningcosts & consumptionEaseof use & build quality
Bosch Air 2000Bosch Air 4000i
Cleaning performance85/10085/100
Noise level64/10084/100
Auto mode & sensors80/10073/100
Running costs & consumption66/10081/100
Ease of use & build quality70/10073/100
Cleaning performance
85
85
Noise level
64
84
Auto mode & sensors
80
73
Running costs & consumption
66
81
Ease of use & build quality
70
73

Specs

Specs compared

Key specs

Brand
Bosch
Bosch
Model
Air 2000
Air 4000i
CADR particlesClean air delivered per hour for particles according to the manufacturer in m³/h – the most important performance figure; the room size is calculated from it
180 m³/h
300 m³/h
Room size up toCalculated from the CADR: CADR ÷ 12.5, rounded to whole m² (five air changes per hour at a 2.5 m ceiling height) – this makes all units comparable, as manufacturer figures often assume only one air change; leave blank if there is no CADR
14 m² (151 sq ft)
24 m² (258 sq ft)
Filter classClass of the main filter per EN 1822 according to the manufacturer (ISO 29463: ISO 35 H = H13, ISO 45 H = H14) – H13 and H14 retain fine dust and pollen almost completely; “True HEPA” or “HEPA-type” without a class counts as “HEPA, no class stated”
H13 (HEPA)
HEPA, no class stated
Noise level at lowest settingNoise at the lowest setting (night mode) according to the manufacturer in dB – important for the bedroom
25 dB
25 dB
Filter costCost of replacement filters per year at the manufacturer’s replacement interval in € – over the years often more than the purchase price
50 €/year

Filters & air

Filter change everyReplacement interval of the main filter according to the manufacturer in months
6 months
12 months
Activated carbon filterAccording to the manufacturer, an activated carbon filter traps odors and gases – important for cooking fumes, smoke and pets
Yes
Yes
SensorsWhich air values the unit measures according to the manufacturer – with a sensor, it adjusts itself in auto mode; leave blank if there is no sensor
PM2.5 particles
PM2.5 particles
Air quality indicatorHow the unit shows the measured air quality according to the manufacturer – as a color ring or with a reading (e.g. PM2.5) on the display
Reading on display
Reading on display
IonizerIon, plasma or “active oxygen” technology according to the manufacturer – it can produce ozone, so being able to switch it off is better
No ionizer
No ionizer
UV sterilizationUV-C lamp inside the unit for sterilization according to the manufacturer
No
No
360° air intakeAccording to the manufacturer, draws in air from all sides – the unit can stand freely in the room instead of against the wall
Yes
Filter change indicatorAccording to the manufacturer, indicates when the filter needs to be replaced
Yes
Yes

Consumption & noise

Noise level at highest settingNoise at the highest setting according to the manufacturer in dB – this is where the unit reaches its CADR
49 dB
49 dB
Power consumptionPower consumption at the highest setting according to the manufacturer in W
20 W
26 W
Standby consumptionPower consumption in standby according to the manufacturer in W – usually slightly higher with Wi-Fi
2 W
2 W

Controls & comfort

Fan speedsNumber of manually adjustable fan speeds according to the manufacturer, excluding auto and night mode
3 levels
3 levels
Night modeDedicated night mode according to the manufacturer: quietest setting, dimmed or switched-off display
Yes
Yes
Display shut-offAccording to the manufacturer, the display and lights can be dimmed or switched off completely – important in the bedroom
Yes
Yes
Timer up toLongest timer setting according to the manufacturer in hours
12 hours
12 hours
Child lockButton lock according to the manufacturer
Yes
Yes
Remote controlRemote control included according to the manufacturer
No
No
Smart homeWhat the unit can be controlled with according to the manufacturer – leave blank if there is no app
Manufacturer appMatter

Features & dimensions

WeightWeight according to the manufacturer in kg – important if the unit moves between rooms
3 kg (6.6 lb)
4 kg (8.8 lb)
Dimensions (W × D × H)Width × depth × height according to the manufacturer in cm – e.g. “27 × 27 × 52 cm”
23.5 × 23.5 × 38.8 cm (9.3 × 9.3 × 15 in)
29.1 × 29.1 × 50 cm (11 × 11 × 20 in)

General

Price segment
Mid-range
In the box
Air 2000, 3-in-1 Air 2000 Filter (Vorfilter, HEPA-Schicht, Aktivkohlefilter), Benutzerhandbuch, Kurzanleitung
Luftreiniger, Kombifilter

Prices

Offers

Bosch Air 2000

Bosch Air 4000i

Ad · Links marked with * are affiliate links: if you buy through them, we earn a commission – at no extra cost to you.

Verdict

Pros & cons

Der Bosch Air 2000 ist ein kompakter HEPA-Luftreiniger für Schlaf- und Kinderzimmer bis etwa 14 m². Er senkt Feinstaub binnen einer Stunde um über 90 %, braucht dafür aber Stufe 3 mit 62,7 dB(A). Ab Stufe 2 ist er fürs Schlafzimmer schon zu laut, und die Ersatzfilter sind teurer als bei vielen Konkurrenten.

Pros

  • Senkt PM2,5 in 60 min von 100,9 auf 7,3 µg/m³
  • Aktivkohle als Pellets bindet Küchendunst und leichte Gerüche zügig
  • PM2,5-Sensor zeigt Messwert als Zahl und regelt die Automatik schnell
  • Sparsam: auf Stufe 1 nur 5,3 W, etwa 46 kWh im Jahr
  • Mit 3 kg leicht von Raum zu Raum zu tragen
  • Funktioniert ohne App, WLAN und Konto

Cons

  • CADR von 180 m³/h reicht nur für rund 14 m², nicht 37,5 m²
  • Ab Stufe 2 mit 51,9 dB(A) fürs Schlafzimmer zu laut
  • Originalfilter teurer als bei vielen ähnlich großen Geräten, Wechsel alle 6 Monate
  • Ruhemodus brummt bei manchen Geräten hörbar und bewegt wenig Luft
  • Zahlendisplay bleibt außerhalb des Ruhemodus an, nicht dimmbar

Der Bosch Air 4000i ist ein leiser, sauber verarbeiteter Mittelklasse-Reiniger für Schlaf- und Wohnzimmer bis etwa 24 m². Mit 300 m³/h filtert er zügig, im Ruhemodus läuft er mit rund 34 dB, und die Anzeige lässt sich abschalten. Der Haken: eine App mit wenig Tiefgang, Kopplung nur im 2,4-GHz-WLAN und ein Sensor, der entfernte Rauchquellen übersieht.

Pros

  • Ruhemodus mit knapp 34 dB und abgeschaltetem Leuchtring, gut fürs Schlafzimmer
  • CADR von 300 m³/h reinigt Räume bis 24 m² zügig
  • Sensor reagiert auf direkten Rauch nach 9 Sekunden, Werte nah am Referenzgerät
  • Höchste Stufe mit 53 dB vergleichsweise leise
  • Matter-zertifiziert, lokal in Home Assistant und Apple Home steuerbar
  • Geringer Stromverbrauch mit 26 W, Filter hält rund 12 Monate

Cons

  • Sensor übersieht schwache Quellen wie ein Räucherstäbchen in 1 m Abstand
  • App ohne Feinstaubverlauf und Warnung, Konto und 2,4-GHz-WLAN nötig
  • Feste Lüfterstufen, Wechsel der Automatik sind hörbar
  • Kombifilter muss komplett raus, wenn die Aktivkohle gesättigt ist
  • Filterwechsel über den Boden, Gerät muss dafür auf den Kopf

Spotted an error?

Wrong price, wrong spec or a dead link – let us know and we will fix it quickly.

Report an error

Similar comparisons

Bosch Air 2000Bosch Air 200083
Alen BreatheSmart 25iAlen BreatheSmart 25i83
View comparison
Bosch Air 2000Bosch Air 200083
Winix T800Winix T80082
View comparison
Bosch Air 2000Bosch Air 200083
Winix ZeroWinix Zero84
View comparison
Bosch Air 2000Bosch Air 200083
Leitz TruSens Z-1000Leitz TruSens Z-100085
View comparison

Keep reading

What’s next?

Maybe a different type of device?

Same kind of training, different devices – one click away.

Build your own comparison