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Products in this category are scored under Frontum Air Purifiers Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Philips 4000i Series AC4236/10 Review | 45 Data compared

Avg. price:~£220Max. CADR:610 m³/hMaximum room area:158 m²Maximum noise level:57 dBHEPA filter:yesWeight:7.4 kg

Philips 4000i Series AC4236/10 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.

Philips 4000i Series AC4236/10
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
▼
<55-66-77-88-99-10
★ Better than 97% of models
Score components

80%

8.3

Technical score

20%

8.4

User score

★Better than 97% of air purifiers
8.5

Value for money

Value for money
8.5/ 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
▼
<55-66-77-88-99-10
★ Better than 97% of models
Score components

70%

8.3

Overall score

30%

8.8

Price

★Better than 97%
8.3

Technical score

Technical score
8.3/ 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
▼
<55-66-77-88-99-10
★ Better than 96% of models
Score components

50%

8.6

Performance

40%

8.7

Features

10%

4.8

Design

★Better than 96%
8.4

User score

User score
8.4/ 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
▲ Better than 66% of models
Score components

70%

8.8

User ratings

30%

7.5

Number of reviews

Based on 893 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
▲Better than 66%
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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 Philips 4000i Series AC4236/10

Technical score
Technical score
8.3/ 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
▼
<55-66-77-88-99-10
★ Better than 96% of models
Score components:

50%

8.6

Performance

40%

8.7

Features

10%

4.8

Design

8.3
User score
User score
8.4/ 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
▲ Better than 66% of models
Score components

70%

8.8

User ratings

30%

7.5

Number of reviews

Based on 893 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.4
Popularity
Popularity
7.5/ 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
▼
<55-66-77-88-99-10
▲ Better than 65% of models
Popularity:
Philips 4000i Series AC4236/10 has a popularity score of 7.5 points, which is higher than 65% of products in this category.
7.5
Value for money
Value for money
8.5/ 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
▼
<55-66-77-88-99-10
★ Better than 97% of models
Score components:

70%

8.3

Overall score

30%

8.8

Price

8.5
Power
60 W
Market range: <10 W – >68 W
This air purifier has a power output of 60 W, which is higher than that of 80.1% of air purifiers and the same as that of 3.9% of air purifiers.
Max. CADR
610 m³/h
Market range: <100 m³/h – >515 m³/h
This air purifier delivers a CADR of 610 m³/h, which is higher than that of 97.5% of air purifiers.
Maximum room area
158 m²
Market range: <20 m² – >130 m²
This air purifier covers up to 158 m², which is larger than 97.7% of air purifiers.
N. of speeds
4
Market range: <3 – >5
This air purifier offers 4 fan speeds, which is more than 55.9% of air purifiers and the same as 25.1% of air purifiers.
Maximum noise level
57 dB
Market range: <32 dB – >61 dB
This air purifier reaches 57 dB at maximum speed, which is louder than 75% of air purifiers and the same as 1.8% 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
no
This air purifier does not have a timer. This feature is present on 75% of air purifiers.
Maximum timer
N/A
Show more
Color
white, grey
Material
plastic
Display
yes
This air purifier has a display. This feature is present on 51.1% of air purifiers.
Display position
top
Control type
touch, app, voice
Show more

Philips 4000i Series AC4236/10 vs the average air purifier

246810TotalPerformanceFeaturesDesign
  • 2.54x higher CADR
    This air purifier provides a higher clean air delivery rate than the average air purifier (610 m³/h vs 240 m³/h).
    610 m³/h vs 240 m³/h
  • 109 m² larger room area
    This air purifier covers a larger room area than the average air purifier (158 m² vs 49 m²).
    158 m² vs 49 m²
  • Supports Wi‑Fi
    This air purifier supports Wi‑Fi; the average air purifier does not.
  • 22.5 W higher power
    This air purifier has a higher power output than the average air purifier (60 W vs 37.5 W).
    60 W vs 37.5 W
  • Has ECARF certification
    This air purifier has ECARF certification; the average air purifier does not.
  • Supports voice control
    This air purifier supports voice control; the average air purifier does not.
  • Supports 360° purification
    This air purifier supports 360° purification; the average air purifier does not.
  • 1 more fan speeds
    This air purifier provides more fan speed settings than the average air purifier (4 vs 3).
    4 vs 3
  • 12.5% better value for money
    Philips 4000i Series AC4236/10 offers better value for money than the average air purifier (8.46 vs 7.5).
    8.46 vs 7.52
  • 4.6% higher user score
    User score
    8.4/ 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
    Philips 4000i Series AC4236/10
    the average air purifier
    Philips 4000i Series AC4236/10 has a higher user score than the average air purifier (8.42 vs 8.048).
    8.42 vs 8.05
  • 13% more popular
    Philips 4000i Series AC4236/10 is more popular than the average air purifier (7.54 vs 6.7).
    7.54 vs 6.67
  • 2.54x higher CADR
    This air purifier provides a higher clean air delivery rate than the average air purifier (610 m³/h vs 240 m³/h).
    610 m³/h vs 240 m³/h
  • 109 m² larger room area
    This air purifier covers a larger room area than the average air purifier (158 m² vs 49 m²).
    158 m² vs 49 m²
  • 22.5 W higher power
    This air purifier has a higher power output than the average air purifier (60 W vs 37.5 W).
    60 W vs 37.5 W
  • Supports 360° purification
    This air purifier supports 360° purification; the average air purifier does not.
  • 1 more fan speeds
    This air purifier provides more fan speed settings than the average air purifier (4 vs 3).
    4 vs 3
  • Supports Wi‑Fi
    This air purifier supports Wi‑Fi; the average air purifier does not.
  • Has ECARF certification
    This air purifier has ECARF certification; the average air purifier does not.
  • Supports voice control
    This air purifier supports voice control; the average air purifier does not.
  • No timer
    This air purifier does not have a timer; the average air purifier does.
  • 4 dB higher maximum noise level
    This air purifier runs louder at maximum speed than the average air purifier (57 dB vs 53 dB).
    57 dB vs 53 dB
  • 61.9% higher weight
    This air purifier is heavier than the average air purifier (7.4 kg vs 4.57 kg).
    7.4 kg vs 4.57 kg
  • 8.6 cm greater depth
    This air purifier is deeper than the average air purifier (30.6 cm vs 22 cm).
    30.6 cm vs 22 cm
  • 20.5 cm taller height
    This air purifier is taller than the average air purifier (70.5 cm vs 50 cm).
    70.5 cm vs 50 cm
  • 3.3 cm wider width
    This air purifier is wider than the average air purifier (30.6 cm vs 27.3 cm).
    30.6 cm vs 27.3 cm
  • 57.1% more expensive
    Philips 4000i Series AC4236/10 is more expensive than the average air purifier (£220 vs £140).
    £220 vs £140
  • 2.15x larger external volume
    This air purifier has a larger overall volume than the average air purifier (66013.4 cm³ vs 30700.8 cm³).
    66,013.38 cm³ vs 30,700.8 cm³
  • 57.1% more expensive
    Philips 4000i Series AC4236/10 is more expensive than the average air purifier (£220 vs £140).
    £220 vs £140
  • 4 dB higher maximum noise level
    This air purifier runs louder at maximum speed than the average air purifier (57 dB vs 53 dB).
    57 dB vs 53 dB
  • No timer
    This air purifier does not have a timer; the average air purifier does.
  • 61.9% higher weight
    This air purifier is heavier than the average air purifier (7.4 kg vs 4.57 kg).
    7.4 kg vs 4.57 kg
  • 8.6 cm greater depth
    This air purifier is deeper than the average air purifier (30.6 cm vs 22 cm).
    30.6 cm vs 22 cm
  • 20.5 cm taller height
    This air purifier is taller than the average air purifier (70.5 cm vs 50 cm).
    70.5 cm vs 50 cm
  • 3.3 cm wider width
    This air purifier is wider than the average air purifier (30.6 cm vs 27.3 cm).
    30.6 cm vs 27.3 cm
  • 2.15x larger external volume
    This air purifier has a larger overall volume than the average air purifier (66013.4 cm³ vs 30700.8 cm³).
    66,013.38 cm³ vs 30,700.8 cm³

Video reviews

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

Third-party reviews

Based on 893 buyer reviews from online shops.
Reviews last updated: August 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Philips 4000i Series AC4236/10

  • Excellent air purification performance with high CADR (610 m³/h) suitable for large rooms up to 158 m²
  • Extremely quiet operation in sleep/silent mode, making it ideal for night use in bedrooms
  • Provides noticeable relief for allergy and asthma sufferers by effectively filtering dust, pollen, and pet dander
  • Great build quality with a modern, aesthetically pleasing minimalist design
  • Real-time air quality tracking via an intuitive color-coded LED ring and numerical display
  • Smart companion app (Philips Air+) functionality for comprehensive remote monitoring and scheduling
  • Efficient automatic AI mode that scales up instantly when sensors detect poor air quality

What we don't like about Philips 4000i Series AC4236/10

  • High cost of genuine replacement filters (FY4440/30)
  • Significant noise level when running on maximum turbo mode
  • Air quality sensors can sometimes respond slowly or lag when detecting instant spikes in smoke or pollutants
  • The device is quite tall (over 70 cm) and lacks physical wheels, making it less convenient to move around despite being relatively lightweight
  • Occasional connectivity issues or lag experienced when pairing the device with the smartphone application

Verdict

The Philips 4000i Series AC4236/10 is a premium, high-performance air purifier designed for XXL spaces up to 158 m², delivering an exceptional Clean Air Delivery Rate (CADR) of 610 m³/h that can clean a 20 m² area in less than 5 minutes. Its key characteristics include a 3-layer filtration setup comprising a pre-filter, an active carbon filter, and a NanoProtect HEPA filter that captures 99.97% of ultrafine particles down to 0.003 microns, alongside smart AeraSense sensors providing real-time numerical and color-coded feedback for PM2.5, gases, and allergens. Main pros include its energy-efficient 60W maximum power consumption, near-silent sleep mode operating at just 18 dB, ECARF allergy-friendly certification, and seamless remote control via the Air+ companion app. However, notable cons include its bulky design and heavy weight of 7.4 kg, the lack of built-in carrying handles for easy mobility, and the high cost of replacement filters.

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