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AEG AX91-604GY Review | 45 Data compared

Avg. price:~£590Max. CADR:620 m³/hMaximum room area:129 m²Maximum noise level:49 dBHEPA filter:yesWeight:8.9 kg

AEG AX91-604GY Review: Compare 45 technical specifications and user reviews to see how this product ranks in the Air Purifiers category and whether it is worth buying.

AEG AX91-604GY
8.3/10

Overall score

Score
8.3/ 10
✕
What it is
An overall evaluation of products in the Air Purifiers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Air Purifiers category.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 98% of models
Score components

80%

8.6

Technical score

20%

7.5

User score

★Better than 98% of air purifiers
7.4

Value for money

Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Purifiers category with their prices.
When it matters
When you are comparing products in the Air Purifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components

70%

8.3

Overall score

30%

5.1

Price

â–¼Worse than 60%
8.6

Technical score

Technical score
8.6/ 10
✕
What it is
An assessment of technical performance for products in the Air Purifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Purifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components

50%

9.0

Performance

40%

9.1

Features

10%

4.4

Design

★Better than 99%
7.5

User score

User score
7.5/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Purifiers category.
When it matters
When you want to know how products in the Air Purifiers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 86% of models
Score components

70%

8.2

User ratings

30%

5.9

Number of reviews

Based on ratings from across the web.
â–¼Worse than 86%
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Best prices
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Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of air purifier AEG AX91-604GY

Technical score
Technical score
8.6/ 10
✕
What it is
An assessment of technical performance for products in the Air Purifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Purifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 100% of models
Score components:

50%

9.0

Performance

40%

9.1

Features

10%

4.4

Design

8.6
User score
User score
7.5/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Purifiers category.
When it matters
When you want to know how products in the Air Purifiers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 86% of models
Score components

70%

8.2

User ratings

30%

5.9

Number of reviews

Based on ratings from across the web.
7.5
Popularity
Popularity
5.9/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Air Purifiers category.
When it matters
When you prefer products in the Air Purifiers category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 67% of models
Popularity:
AEG AX91-604GY has a popularity score of 5.9 points, which is lower than 66.7% of products in this category.
5.9
Value for money
Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Purifiers category with their prices.
When it matters
When you are comparing products in the Air Purifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components:

70%

8.3

Overall score

30%

5.1

Price

7.4
Power
41 W
Market range: <10 W – >68 W
This air purifier has a power output of 41 W, which is higher than that of 59.1% of air purifiers and the same as that of 0.6% of air purifiers.
Max. CADR
620 m³/h
Market range: <100 m³/h – >515 m³/h
This air purifier delivers a CADR of 620 m³/h, which is higher than that of 98.1% of air purifiers and the same as that of 0.6% of air purifiers.
Maximum room area
129 m²
Market range: <20 m² – >130 m²
This air purifier covers up to 129 m², which is larger than 89.7% of air purifiers and the same as 0.6% of air purifiers.
N. of speeds
9
Market range: <3 – >5
This air purifier offers 9 fan speeds, which is more than 92.2% of air purifiers and the same as 0.6% of air purifiers.
Maximum noise level
49 dB
Market range: <32 dB – >61 dB
This air purifier reaches 49 dB at maximum speed, which is quieter than 73.8% of air purifiers and the same as 7.3% of air purifiers.
Show more
Air quality indicator
yes
This air purifier has an air-quality indicator. This feature is present on 65.4% of air purifiers.
Continuous purification
yes
This air purifier supports continuous purification. This feature is present on 86.3% of air purifiers.
Auto mode
yes
This air purifier has auto mode. This feature is present on 67% of air purifiers.
Timer
yes
This air purifier has a timer. This feature is present on 75% of air purifiers.
Maximum timer
?
Show more
Color
grey
Material
stainless steel
Display
no
This air purifier does not have a display. This feature is present on 51.1% of air purifiers.
Display position
N/A
Control type
buttons, app
Show more

AEG AX91-604GY vs the average air purifier

246810TotalPerformanceFeaturesDesign
  • 2.58x higher CADR
    This air purifier provides a higher clean air delivery rate than the average air purifier (620 m³/h vs 240 m³/h).
    620 m³/h vs 240 m³/h
  • 80 m² larger room area
    This air purifier covers a larger room area than the average air purifier (129 m² vs 49 m²).
    129 m² vs 49 m²
  • 6 more fan speeds
    This air purifier provides more fan speed settings than the average air purifier (9 vs 3).
    9 vs 3
  • 2 more filtration stages
    This air purifier features more filtration stages than the average air purifier (5 vs 3).
    5 vs 3
  • Supports Wi‑Fi
    This air purifier supports Wi‑Fi; the average air purifier does not.
  • Has a child lock
    This air purifier has a child lock; the average air purifier does not.
  • Supports 360° purification
    This air purifier supports 360° purification; the average air purifier does not.
  • 4 dB lower maximum noise level
    This air purifier runs quieter at maximum speed than the average air purifier (49 dB vs 53 dB).
    49 dB vs 53 dB
  • 2.58x higher CADR
    This air purifier provides a higher clean air delivery rate than the average air purifier (620 m³/h vs 240 m³/h).
    620 m³/h vs 240 m³/h
  • 80 m² larger room area
    This air purifier covers a larger room area than the average air purifier (129 m² vs 49 m²).
    129 m² vs 49 m²
  • 6 more fan speeds
    This air purifier provides more fan speed settings than the average air purifier (9 vs 3).
    9 vs 3
  • Supports 360° purification
    This air purifier supports 360° purification; the average air purifier does not.
  • 4 dB lower maximum noise level
    This air purifier runs quieter at maximum speed than the average air purifier (49 dB vs 53 dB).
    49 dB vs 53 dB
  • 3.5 W higher power
    This air purifier has a higher power output than the average air purifier (41 W vs 37.5 W).
    41 W vs 37.5 W
  • 2 more filtration stages
    This air purifier features more filtration stages than the average air purifier (5 vs 3).
    5 vs 3
  • Supports Wi‑Fi
    This air purifier supports Wi‑Fi; the average air purifier does not.
  • Has a child lock
    This air purifier has a child lock; the average air purifier does not.
  • Has an ionizer
    This air purifier has an ionizer; the average air purifier does not.
  • 0.2 m longer power cord
    This air purifier features a longer power cord than the average air purifier (2 m vs 1.8 m).
    2 m vs 1.8 m
  • Has a handle
    This air purifier has a handle; the average air purifier does not.
  • 94.7% higher weight
    This air purifier is heavier than the average air purifier (8.9 kg vs 4.57 kg).
    8.9 kg vs 4.57 kg
  • 0.07 % percentage points lower bacteria elimination
    This air purifier achieves lower certified bacteria elimination than the average air purifier (99.9 % vs 99.97 %).
    99.9 % vs 99.97 %
  • No display
    This air purifier does not have a display; the average air purifier does.
  • 9.5 cm greater depth
    This air purifier is deeper than the average air purifier (31.5 cm vs 22 cm).
    31.5 cm vs 22 cm
  • 22.5 cm taller height
    This air purifier is taller than the average air purifier (72.5 cm vs 50 cm).
    72.5 cm vs 50 cm
  • 4.21x more expensive
    AEG AX91-604GY is more expensive than the average air purifier (£590 vs £140).
    £590 vs £140
  • 7.2% lower user score
    User score
    7.5/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Air Purifiers category.
    When it matters
    When you want to know how products in the Air Purifiers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    AEG AX91-604GY
    the average air purifier
    AEG AX91-604GY has a lower user score than the average air purifier (7.51 vs 8.048).
    7.51 vs 8.05
  • 4.2 cm wider width
    This air purifier is wider than the average air purifier (31.5 cm vs 27.3 cm).
    31.5 cm vs 27.3 cm
  • 4.21x more expensive
    AEG AX91-604GY is more expensive than the average air purifier (£590 vs £140).
    £590 vs £140
  • 7.2% lower user score
    User score
    7.5/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Air Purifiers category.
    When it matters
    When you want to know how products in the Air Purifiers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    AEG AX91-604GY
    the average air purifier
    AEG AX91-604GY has a lower user score than the average air purifier (7.51 vs 8.048).
    7.51 vs 8.05
  • 13.3% less popular
    AEG AX91-604GY is less popular than the average air purifier (5.89 vs 6.7).
    5.89 vs 6.67
  • 2% worse value for money
    AEG AX91-604GY offers worse value for money than the average air purifier (7.37 vs 7.5).
    7.37 vs 7.52
  • 0.07 % percentage points lower bacteria elimination
    This air purifier achieves lower certified bacteria elimination than the average air purifier (99.9 % vs 99.97 %).
    99.9 % vs 99.97 %
  • 94.7% higher weight
    This air purifier is heavier than the average air purifier (8.9 kg vs 4.57 kg).
    8.9 kg vs 4.57 kg
  • No display
    This air purifier does not have a display; the average air purifier does.
  • 9.5 cm greater depth
    This air purifier is deeper than the average air purifier (31.5 cm vs 22 cm).
    31.5 cm vs 22 cm
  • 22.5 cm taller height
    This air purifier is taller than the average air purifier (72.5 cm vs 50 cm).
    72.5 cm vs 50 cm
  • 4.2 cm wider width
    This air purifier is wider than the average air purifier (31.5 cm vs 27.3 cm).
    31.5 cm vs 27.3 cm
  • 2.34x larger external volume
    This air purifier has a larger overall volume than the average air purifier (71938.1 cm³ vs 30700.8 cm³).
    71,938.125 cm³ vs 30,700.8 cm³

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

I
idealhome.co.uk
08/02/2024
Summary of the review
AEG AX91-604GY Connected Air Purifier Review
W
womanandhome.com
03/12/2020
Summary of the review
AEG AX9 600 Connected Air Purifier Review

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What we like about AEG AX91-604GY

  • High cleaning capacity suitable for large and open-plan spaces up to 118 square meters
  • Extremely quiet operation, reaching as low as 17 decibels on its lowest setting
  • Effective five-stage filtration system that removes bacteria, allergens, fine dust, and odors
  • Smart PureSense technology automatically adjusts fan speeds based on real-time air quality
  • Clear, intuitive six-color LED visual indicator for live air quality tracking
  • Well-designed AEG Wellbeing smartphone app for remote tracking, scheduling, and filter life monitoring
  • Aesthetically pleasing, stylish, and premium design that blends well with home decor

What we don't like about AEG AX91-604GY

  • High initial purchase price and considered a significant investment
  • Ongoing high cost for replacing specialized filters regularly
  • Occasional Wi-Fi pairing and app connectivity issues reported by some users
  • Filters can become noisy and noticeable when running at maximum speed settings
  • Large and bulky physical footprint compared to smaller room purifiers
  • Reliance on the mobile application to access advanced features like the ionizer or detailed history

Verdict

The AEG AX91-604GY is a smart, Wi-Fi connected air purifier designed for large spaces up to 129 m², delivering a high Clean Air Delivery Rate (CADR) of 620 m³/h. It features a comprehensive 5-stage purification system comprising a mesh pre-filter, an antibacterial layer, a pre-charged True EPA12 filter, active carbon, and an optional ioniser to capture 99.5% of microscopic particles as small as 0.3 microns. Main pros include its responsive PureSense technology that automatically adjusts the 9 fan speeds based on real-time air quality metrics (PM1/PM2.5/PM10/TVOC), an energy-efficient power draw ranging from 4W to 41W, and exceptionally quiet operation that drops down to 17 dB. However, notable cons include its lack of a built-in hardware timer control, a substantial unit weight of 8.9 kg that limits portability, and the premium cost or occasional availability challenges associated with replacing its specialized 360-degree cylindrical filters.

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