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LEVOIT LV450S Review | 43 Data compared

Avg. price:~£90Humidification rate:550 ml/hMaximum room area:40 m²Water tank capacity:4.5 LMaximum operating time:45 hoursMaximum noise level:41 dB

LEVOIT LV450S Review: Compare 43 technical specifications and user reviews to see how this product ranks in the Humidifiers category and whether it is worth buying.

LEVOIT LV450S
7.9/10

Overall score

Score
7.9/ 10
✕
What it is
An overall evaluation of products in the Humidifiers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Humidifiers category.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components

80%

8.0

Technical score

20%

7.6

User score

â–²Better than 87% of humidifiers
8.0

Value for money

Value for money
8.0/ 10
✕
What it is
An indicator that combines the overall score of products in the Humidifiers category with their prices.
When it matters
When you are comparing products in the Humidifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 71% of models
Score components

70%

7.9

Overall score

30%

8.2

Price

â–²Better than 71%
8.0

Technical score

Technical score
8.0/ 10
✕
What it is
An assessment of technical performance for products in the Humidifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Humidifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components

45%

7.4

Performance

40%

9.1

Features

15%

6.7

Design

â–²Better than 87%
7.6

User score

User score
7.6/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Humidifiers category.
When it matters
When you want to know how products in the Humidifiers 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 71% of models
Score components

70%

8.8

User ratings

30%

4.9

Number of reviews

Based on ratings from across the web.
â–¼Worse than 71%
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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 humidifier LEVOIT LV450S

Technical score
Technical score
8.0/ 10
✕
What it is
An assessment of technical performance for products in the Humidifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Humidifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components:

45%

7.4

Performance

40%

9.1

Features

15%

6.7

Design

8.0
User score
User score
7.6/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Humidifiers category.
When it matters
When you want to know how products in the Humidifiers 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 71% of models
Score components

70%

8.8

User ratings

30%

4.9

Number of reviews

Based on ratings from across the web.
7.6
Popularity
Popularity
4.9/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Humidifiers category.
When it matters
When you prefer products in the Humidifiers 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 80% of models
Popularity:
LEVOIT LV450S has a popularity score of 4.9 points, which is lower than 78.5% of products in this category.
4.9
Value for money
Value for money
8.0/ 10
✕
What it is
An indicator that combines the overall score of products in the Humidifiers category with their prices.
When it matters
When you are comparing products in the Humidifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 71% of models
Score components:

70%

7.9

Overall score

30%

8.2

Price

8.0
Technology
ultrasonic
Humidification rate
550 ml/h
Market range: <50 ml/h – >500 ml/h
This humidifier delivers a humidification rate of 550 ml/h, which is higher than that of 92.9% of humidifiers and equal to that of 3.6% of humidifiers.
Maximum room area
40 m²
Market range: <20 m² – >60 m²
This humidifier covers rooms up to 40 m², which is larger than that of 61.3% of humidifiers and equal to that of 9.2% of humidifiers.
Water tank capacity
4.5 L
Market range: <0.4 L – >6.5 L
This humidifier has a water tank capacity of 4.5 L, which is larger than that of 67.1% of humidifiers and equal to that of 4.7% of humidifiers.
Maximum operating time
45 hours
Market range: <8 hours – >60 hours
This humidifier runs for up to 45 hours on a single fill, which is longer than 81.2% of humidifiers and equal to that of 0.7% of humidifiers.
Show more
Warm mist function
yes
This humidifier offers a warm-mist option. A warm-mist option is present in 25.5% of humidifiers.
Aromatherapy support
yes
This humidifier supports aromatherapy. Aromatherapy support is available in 73.8% of humidifiers.
Dedicated aroma compartment
yes
This humidifier includes a dedicated aroma compartment. A dedicated aroma compartment is present in 48.3% of humidifiers.
Automatic low-water shut-off
yes
This humidifier shuts off automatically when water runs low. Automatic low-water shut-off is available in 99.3% of humidifiers.
Water level indicator
yes
This humidifier includes a water-level indicator. A water-level indicator is present in 83.9% of humidifiers.
Show more
Fill type
top fill
Color
white
Material
plastic
360° nozzle
yes
This humidifier has a 360° nozzle. A 360° nozzle is included in 57.7% of humidifiers.
Display
yes
This humidifier has a display. A display is included in 43.6% of humidifiers.
Show more

LEVOIT LV450S vs the average humidifier

246810TotalPerformanceFeaturesDesign
  • 2.12x higher humidification rate
    This humidifier delivers a higher humidification rate than the average humidifier (550 ml/h vs 260 ml/h).
    550 ml/h vs 260 ml/h
  • Warm-mist option
    This humidifier offers a warm-mist option; the average humidifier does not offer a warm-mist option.
  • Wi-Fi control
    This humidifier supports Wi-Fi control; the average humidifier does not support Wi-Fi control.
  • Voice control supported
    This humidifier supports voice control; the average humidifier does not support voice control.
  • Hygrostat included
    This humidifier has a hygrostat; the average humidifier has no hygrostat.
  • 21 hours longer runtime
    This humidifier runs longer on a single fill than the average humidifier (45 hours vs 24 hours).
    45 hours vs 24 hours
  • Dedicated aroma compartment
    This humidifier includes a dedicated aroma compartment; the average humidifier does not include a dedicated aroma compartment.
  • 4.36 cm narrower body
    This humidifier has a narrower body than the average humidifier (15.2 cm vs 19.6 cm).
    15.2 cm vs 19.555 cm
  • 6% better value for money
    LEVOIT LV450S offers better value for money than the average humidifier (8.01 vs 7.6).
    8.01 vs 7.56
  • 2.12x higher humidification rate
    This humidifier delivers a higher humidification rate than the average humidifier (550 ml/h vs 260 ml/h).
    550 ml/h vs 260 ml/h
  • Hygrostat included
    This humidifier has a hygrostat; the average humidifier has no hygrostat.
  • 21 hours longer runtime
    This humidifier runs longer on a single fill than the average humidifier (45 hours vs 24 hours).
    45 hours vs 24 hours
  • 1.15 L larger water tank
    This humidifier has a larger water tank than the average humidifier (4.5 L vs 3.35 L).
    4.5 L vs 3.35 L
  • 9 m² more room coverage
    This humidifier covers larger rooms than the average humidifier (40 m² vs 31 m²).
    40 m² vs 31 m²
  • Warm-mist option
    This humidifier offers a warm-mist option; the average humidifier does not offer a warm-mist option.
  • Wi-Fi control
    This humidifier supports Wi-Fi control; the average humidifier does not support Wi-Fi control.
  • Voice control supported
    This humidifier supports voice control; the average humidifier does not support voice control.
  • Dedicated aroma compartment
    This humidifier includes a dedicated aroma compartment; the average humidifier does not include a dedicated aroma compartment.
  • 4.36 cm narrower body
    This humidifier has a narrower body than the average humidifier (15.2 cm vs 19.6 cm).
    15.2 cm vs 19.555 cm
  • Display included
    This humidifier has a display; the average humidifier does not have a display.
  • 0.06 m longer power cable
    This humidifier has a longer power cable than the average humidifier (1.6 m vs 1.51 m).
    1.57 m vs 1.51 m
  • 7.9 dB higher maximum noise
    This humidifier is louder at maximum output than the average humidifier (41 dB vs 33.1 dB).
    41 dB vs 33.1 dB
  • 256 W higher power draw
    This humidifier draws more power than the average humidifier (280 W vs 24 W).
    280 W vs 24 W
  • 9.15 cm deeper body
    This humidifier has a deeper profile than the average humidifier (27.4 cm vs 18.25 cm).
    27.4 cm vs 18.25 cm
  • No LED lighting
    This humidifier does not feature LED lighting; the average humidifier features LED lighting.
  • 62.2% heavier
    This humidifier is heavier than the average humidifier (2.4 kg vs 1.48 kg).
    2.4 kg vs 1.48 kg
  • 20 % RH lower target humidity
    This humidifier supports a lower maximum target humidity than the average humidifier (60 % RH vs 80 % RH).
    60 % RH vs 80 % RH
  • 30.3% less popular
    LEVOIT LV450S is less popular than the average humidifier (4.91 vs 6.4).
    4.91 vs 6.4
  • 2.57x more expensive
    LEVOIT LV450S is more expensive than the average humidifier (£90 vs £35).
    £90 vs £35
  • 30.3% less popular
    LEVOIT LV450S is less popular than the average humidifier (4.91 vs 6.4).
    4.91 vs 6.4
  • 2.57x more expensive
    LEVOIT LV450S is more expensive than the average humidifier (£90 vs £35).
    £90 vs £35
  • 4.9% lower user score
    User score
    7.6/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Humidifiers category.
    When it matters
    When you want to know how products in the Humidifiers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    LEVOIT LV450S
    the average humidifier
    LEVOIT LV450S has a lower user score than the average humidifier (7.63 vs 8.000).
    7.63 vs 8
  • 7.9 dB higher maximum noise
    This humidifier is louder at maximum output than the average humidifier (41 dB vs 33.1 dB).
    41 dB vs 33.1 dB
  • 256 W higher power draw
    This humidifier draws more power than the average humidifier (280 W vs 24 W).
    280 W vs 24 W
  • 20 % RH lower target humidity
    This humidifier supports a lower maximum target humidity than the average humidifier (60 % RH vs 80 % RH).
    60 % RH vs 80 % RH
  • No LED lighting
    This humidifier does not feature LED lighting; the average humidifier features LED lighting.
  • 9.15 cm deeper body
    This humidifier has a deeper profile than the average humidifier (27.4 cm vs 18.25 cm).
    27.4 cm vs 18.25 cm
  • 62.2% heavier
    This humidifier is heavier than the average humidifier (2.4 kg vs 1.48 kg).
    2.4 kg vs 1.48 kg
  • 1.42 cm taller body
    This humidifier stands taller than the average humidifier (30.4 cm vs 28.98 cm).
    30.4 cm vs 28.98 cm

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

T
techgearlab.com
19/08/2025
Summary of the review
Levoit OasisMist 450S Smart Review | Tested & Rated
M
medgrade.org
18/04/2026
Summary of the review
Levoit OasisMist 450S Smart Humidifier Review - MedGrade
C
consumerreports.org
N/A
Summary of the review
Levoit OasisMist 450s Smart Humidifier Review - Consumer Reports
E
etm-testmagazin.de
16/12/2025
Summary of the review
Levoit OasisMist 450S Smart Review 2025
(Translated)Show original
J
je-suis-papa.ouest-france.fr
18/05/2026
Summary of the review
Levoit OasisMist 450S Humidifier: Full Review
(Translated)Show original
L
lavelab.com
17/11/2025
Summary of the review
The Best Air Humidifiers 2026 | Tested by Lavelab
(Translated)Show original

Third-party reviews

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

What we like about LEVOIT LV450S

  • Versatile dual-temperature setting providing both warm and cool mist options
  • Convenient top-fill water tank design that minimizes spills and simplifies refilling
  • Excellent smart connectivity via the VeSync app, enabling remote control and custom schedules
  • Dual 360-degree rotating nozzles that allow for highly precise directional mist placement
  • Whisper-quiet operation, particularly when utilizing the advanced sleep mode
  • Strong and powerful moisture output that quickly increases humidity in medium-to-large rooms
  • Useful dedicated aromatherapy slot for adding essential oils without contaminating the water

What we don't like about LEVOIT LV450S

  • High risk of white mineral dust build-up unless distilled or demineralized water is used
  • Inaccurate built-in humidity sensor readouts when the unit is placed too close to a wall
  • Increased power consumption and slightly higher noise levels when operating the warm mist mode
  • Relatively frequent maintenance required, including recommended deep cleanings every few days
  • Lack of real-time humidity level visibility on the physical display panel when the unit is powered off
  • Some internal compartments and tight areas can be difficult to fully access for descaling

Verdict

The LEVOIT OasisMist 450S is a smart hybrid ultrasonic and steam humidifier featuring a 4.5-litre (1.19-gallon) top-fill water tank that delivers a powerful maximum mist output of 550 mL/h, designed to cover rooms from 215 to 430 square feet (20–40 m²) for up to 45 continuous hours. Key performance characteristics and pros include its dual warm and cool mist settings, dual 360-degree rotating nozzles, built-in humidistat for automated Auto Mode adjustments, an aromatherapy tray, and smart remote operation via the VeSync app with Amazon Alexa or Google Assistant integration, all while maintaining quiet operation between 26 dB and 41 dB. However, major cons include elevated power consumption during warm mist usage, a significantly reduced runtime of under 20 hours when blasting both modes simultaneously, a risk of white dust build-up from hard water, and a somewhat tedious multi-part manual cleaning process.

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