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Essential Oil Diffusers · Comparison

The Vitruvi Stone Diffuser meets
the ASAKUKI 500ml Essential Oil Diffuser

The ceramic diffuser HGTV, Good Housekeeping and Healthline each named the best overall. We tested it head-to-head against the ASAKUKI 500ml Essential Oil Diffuser across 6 key dimensions.

Vitruvi Stone Diffuser in white, front view of the matte ceramic cover with the warm amber light ring glowing above the Vitruvi-branded base
BEST

Vitruvi Stone Diffuser

“The ceramic diffuser HGTV, Good Housekeeping and Healthline each named the best overall”

$129.99MSRP
Our Score
80.7 / 100
ASAKUKI 500ml Essential Oil Diffuser in White Wood, front view showing the frosted white dome and the LIGHT, timer, HIGH/LOW and MIST buttons, with its remote control alongside
VALUE

ASAKUKI 500ml Essential Oil Diffuser

“Homes & Gardens' best all-rounder and HGTV's pick for large rooms, with a 500 ml tank and a remote”

$35.99MSRP
Our Score
79.5 / 100
01

Head-to-Head Breakdown

Scent
30% of score +
Vitruvi
84
ASAKUKI
80
Vitruvi Stone Diffuser

HGTV's Theresa Holland noticed the scent beside the unit right away and across a large room within about an hour. Good Housekeeping says it 'scored the highest marks across every category' of its Wellness Lab tests, and Homes & Gardens rated its scent strength 4 out of 5. The Raindrop nebulizer pushes scent farther.

ASAKUKI 500ml Essential Oil Diffuser

HGTV used 20 drops and could detect the scent across a large room after about an hour, then named it Best for Large Rooms. Homes & Gardens rated its scent strength 4 out of 5. HGTV found the mist shoots out at a diagonal rather than straight up.

Run Time
15% of score +
Vitruvi
66
ASAKUKI
87
Vitruvi Stone Diffuser

Floor+scale on rated hours per fill in the longest mode: 50 + ((8-2)/(21-2))*50 = 65.8, rounded to 66. Vitruvi rates the 70 ml tank for 4 hours continuous or 8 intermittent, and HGTV's ran the full 8 hours.

ASAKUKI 500ml Essential Oil Diffuser

Floor+scale on rated hours per fill: 50 + ((16-2)/(21-2))*50 = 86.8, rounded to 87. ASAKUKI rates the 500 ml tank for up to 16 hours. Homes & Gardens still topped it up almost daily on low.

Ease of Use
15% of score +
Vitruvi
62
ASAKUKI
80
Vitruvi Stone Diffuser

TechGearLab found it painless to clean, but Wirecutter says the small tank and two layers of lids make refilling more annoying, and The Spruce found crevices in the tank that are hard to scrub. Homes & Gardens notes the controls sit on the back. You get two run settings and no remote.

ASAKUKI 500ml Essential Oil Diffuser

A remote with a 16.5-foot range, 1, 2 and 3-hour timers and separate light and mist buttons make it the easiest pick here to control. Homes & Gardens found condensation builds up around it, which means regular wiping.

Quiet
15% of score +
Vitruvi
92
ASAKUKI
86
Vitruvi Stone Diffuser

Wirecutter calls it one of the few diffusers with a truly subtle indicator light and the one to run while you sleep. Homes & Gardens' Ottilie Blackhall found it quiet enough for a home office.

ASAKUKI 500ml Essential Oil Diffuser

Homes & Gardens' Ottilie Blackhall found it 'completely silent', and ASAKUKI rates it under 23 decibels. The seven-colour light switches off without stopping the mist.

Build
15% of score +
Vitruvi
94
ASAKUKI
62
Vitruvi Stone Diffuser

HGTV praises the 'sturdy, well-made design' and hand-molded ceramic body. TechGearLab says the ceramic cover 'looks fantastic', though it needs careful handling, and Homes & Gardens calls the look and feel premium.

ASAKUKI 500ml Essential Oil Diffuser

The body is polypropylene, and some colours get a printed wood-grain finish. It looks plain next to the ceramic Vitruvi and the stone-look Saje, and no reviewer praised its looks.

Trust
10% of score +
Vitruvi
84
ASAKUKI
82
Vitruvi Stone Diffuser

The Stone appears in seven of our eight sources, the widest backing of any diffuser in this research. Vitruvi covers it for one year. Its Amazon listing averages 4.0 stars from 918 ratings, lower than the budget picks.

ASAKUKI 500ml Essential Oil Diffuser

Five of our eight sources recommend an ASAKUKI model, the most of any budget brand. This listing averages 4.3 stars from 72,771 Amazon ratings, and the 1-year warranty extends to 2 years with free registration.

02

Strengths & Weaknesses

Vitruvi Stone Diffuser

+ Strengths
  • Best Overall at HGTV in September 2026 and at Good Housekeeping, where it 'scored the highest marks across every category' of the lab's tests
  • HGTV could smell it across a large room within about an hour, and Vitruvi rates it for 500 square feet
  • Wirecutter says its dim indicator light is subtle enough to sleep beside, and it shuts itself off when the water runs out
− Weaknesses
  • The 70 ml tank lasts 4 hours on continuous mist, and Wirecutter found the two layers of lids make refilling fiddly
  • The Spruce found hard-to-clean crevices in the tank, and Homes & Gardens says the controls on the back are tricky to reach
  • At $129.99 list it costs over three times the ASAKUKI, with only two run settings and no remote
Key flaw: The tank is small.

ASAKUKI 500ml Essential Oil Diffuser

+ Strengths
  • Homes & Gardens' best all-rounder in August 2026 and HGTV's Best for Large Rooms, where 20 drops scented a large room in about an hour
  • The 500 ml tank holds about seven times the Vitruvi's water and is rated for up to 16 hours
  • Homes & Gardens found it 'completely silent', and the remote sets timers and switches the light off on its own
− Weaknesses
  • HGTV found the mist blows out at a diagonal instead of straight up, so it needs space around it
  • Homes & Gardens says condensation collects around the unit and needs wiping
  • It looks like a budget plastic gadget, and the warranty only reaches 2 years if you register it
Key flaw: It looks like what it is, a plastic diffuser, and no reviewer praised its design.
03

The Verdict

Our Bottom Line

The Vitruvi Stone turns up in seven of our eight sources, and three of them rank it first. HGTV's Theresa Holland named it Best Overall in September 2026. Good Housekeeping's Wellness Lab gave it the same title after it 'scored the highest marks across every category' of the lab's tests, and Healthline put it at the top of its list too. Even Wirecutter, which has backed a $20 URPOWER since 2017, names the Stone as its upgrade pick.

BEST
Vitruvi Stone Diffuser
Vitruvi Stone Diffuser in white, front view of the matte ceramic cover with the warm amber light ring glowing above the Vitruvi-branded base

The Vitruvi Stone turns up in seven of our eight sources, and three of them rank it first. HGTV's Theresa Holland named it Best Overall in September 2026. Good Housekeeping's Wellness Lab gave it the same title after it 'scored the highest marks across every category' of the lab's tests, and Healthline put it at the top of its list too. Even Wirecutter, which has backed a $20 URPOWER since 2017, names the Stone as its upgrade pick.

Best for:
  • The diffuser will sit on display in a living room or on a nightstand
  • You run it while you sleep and want a dim light
  • Your room is up to about 500 square feet
  • You'd pay more for a ceramic cover over plastic
  • You don't mind refilling a small tank most nights
VALUE
ASAKUKI 500ml Essential Oil Diffuser
ASAKUKI 500ml Essential Oil Diffuser in White Wood, front view showing the frosted white dome and the LIGHT, timer, HIGH/LOW and MIST buttons, with its remote control alongside

Two separate 2026 roundups chose the ASAKUKI 500ml. Homes & Gardens' Ottilie Blackhall named it the best all-rounder in August 2026 and scored its value 5 out of 5. A month later, HGTV picked it as Best for Large Rooms. ASAKUKI models also turn up in Good Housekeeping, TechGearLab and Reviewed, which makes it the most recommended budget brand in our research.

Best for:
  • You want the longest run on one fill for under $40
  • You like having a remote and timer settings
  • You're scenting a bedroom or living room up to about 350 square feet
  • You want a quiet diffuser for sleep
  • Price matters more to you than looks
04

Specifications

Spec Vitruvi Stone Diffuser ASAKUKI 500ml Essential Oil Diffuser
Type Ultrasonic Ultrasonic
Tank 70 ml 500 ml
Max Run Time 8 hrs 16 hrs
Settings 4 h continuous or 8 h intermittent 1, 2 or 3 h timers, or continuous
Coverage 500 sq ft 350 sq ft
Auto Shut-Off When empty or timer ends When empty
Light Single soft glow, switchable 7 colours, switchable
Build Matte ceramic cover Polypropylene
Warranty 1 year 1 year, 2 with registration
Noise — Under 23 dB
Remote — Yes, 16.5 ft range
Read the full Essential Oil Diffusers review
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