Head-to-head · Best Essential Oil Diffusers

ASAKUKI 500 mL Essential Oil Diffuser vs EQUSUPRO 150ml Black Metal Essential Oil Diffuser

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

EQUSUPRO 150ml Black Metal Essential Oil Diffuser comes out ahead by a clear margin (4.2 vs 4.6). The gap is mostly about aesthetic-focused buyers wanting basic functionality — read the strengths below before deciding.

Ranked #3 in Best Essential Oil Diffusers

ASAKUKI 500 mL Essential Oil Diffuser

4.2

3 sourcesall derived$19.99as of Aug 1

Business Insider named the ASAKUKI 500 mL Essential Oil Diffuser its best overall option for 2026, crediting a large water capacity that keeps the unit running up to 16 hours. A remote control handles timer, lighting, and mist intensity settings, and cleaning is easy. Wirecutter reviewers rate it a strong contender too, pointing to reliable performance while noting how much space it takes up. Medium to large rooms are where it belongs; anyone short on counter space should size down.

Strengths

— Large 500 mL water tank provides up to 16 hours of runtime
— Includes remote control for convenient operation
— Features 7 LED light settings with adjustable brightness

Watch-outs

— Large 6.6-inch diameter takes up considerable space
— Mist intensity cannot be adjusted without using the remote

$19.99 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best Essential Oil Diffusers

EQUSUPRO 150ml Black Metal Essential Oil Diffuser

4.6

3 sources2 derived$16.99as of Aug 1

The EQUSUPRO is a 150ml ultrasonic diffuser in a black metal shell, priced at the bottom of the category. It mists continuously or on a 30-seconds-on, 30-off cycle, runs whisper quiet, and adds a seven-colour LED nightlight. There is no app, no scheduling and no smart timer; the controls are buttons on the unit. TechGearLab's aromatherapy diffuser roundup ranks it eighth, praising its vivid light patterns but faulting its inconsistent, underwhelming diffusing performance, and the two video reviews in its citation list both land at 4.5.

Strengths

— Compact design suitable for small spaces
— Black metal aesthetic with modern appearance
— Easy to use with simple controls and LED lighting

Watch-outs

— Limited water capacity at 150ml
— No smart connectivity or app control features

$16.99 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

ASAKUKI 500 mL Essential Oil Diffuser

The ASAKUKI Essential Oil Diffuser stands out with its large 500ml tank offering up to 16 hours of runtime, far exceeding the 150ml to 300ml capacities of competitors like EQUSUPRO and Homeweeks. While it lacks adjustable mist intensity without the remote, it surpasses the LEVOIT in runtime and offers a more comprehensive lighting system with 7 LED settings compared to the LEVOIT's absence of lighting features. Its remote control functionality also gives it an edge over the basic models like Earnest Living and Air Wick.

EQUSUPRO 150ml Black Metal Essential Oil Diffuser

The EQUSUPRO diffuser's compact design and black metal aesthetic distinguish it from the larger ASAKUKI and LEVOIT models, though its 150ml tank capacity is significantly smaller than ASAKUKI's 500ml. Unlike the Ultimate Aromatherapy Diffuser, it doesn't include essential oils, and compared to the Art Glass Diffuser, it lacks the premium glass construction and more advanced timer options. It's best suited for those who prefer a sleek, basic model without smart features.

Specs side-by-side

Spec	ASAKUKI 500 mL Essential Oil Diffuser	EQUSUPRO 150ml Black Metal Essential Oil Diffuser
Tank Capacity	500 mL (17 ounces)	150ml
Mist Settings	Light or strong mist	Continuous, intermittent (30s on/30s off)
Timer Settings	60, 120, and 180 minutes; continuous; intermittent	None (continuous mist)
Lighting	7 LED lights	7 LED colors
Noise Level	Quiet	Whisper quiet
Coverage Area	Rooms of all sizes	~10 sq m
Material	Plastic	Black Metal
Power Source	Barrel jack	Corded electric

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