Head-to-head · Best Essential Oil Diffusers

Air Wick Essential Mist Starter Kit 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.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

EQUSUPRO 150ml Black Metal Essential Oil Diffuser comes out ahead by a clear margin (4.0 vs 4.6). The gap is mostly about aesthetic-focused buyers wanting basic functionality — read the strengths below before deciding.

Ranked #4 in Best Essential Oil Diffusers

Air Wick Essential Mist Starter Kit

4.0

1 sourceall derived$19.99as of Aug 1

The Air Wick Essential Mist Starter Kit disperses natural essential oil fragrance from a compact cordless diffuser powered by 3 AA batteries. Reviewers praised the easy setup, long-lasting refills, and the three settings for adjusting fragrance intensity. Users describe a calming scent with no noise, which makes it easy to run daily. The refill indicator is somewhat hard to see, according to some users. Anyone who wants a simple, battery-powered diffuser with natural fragrances will be happy, keeping in mind the starter kit's limited fragrance variety.

Strengths

— Compact, cordless, and battery operated for easy placement
— Long-lasting refills with no water needed and oils lasting up to 45 days on low setting
— Adjustable fragrance intensity with 3 settings for varying scent levels

Watch-outs

— Some users reported the refill indicator is not very visible
— Limited fragrance options available in the starter kit

$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

Air Wick Essential Mist Starter Kit

The Air Wick Starter Kit is unique in its cordless, battery-powered operation, making it more portable than the ASAKUKI and LEVOIT models. However, it's limited to 1 refill and offers only 3 fragrance intensity settings, unlike the Ultimate Aromatherapy Diffuser's 10ml oil bottles or the EQUSUPRO's 150ml tank. While it's simple to use and has a long-lasting refill, it lacks the timer and lighting features of the more feature-rich competitors like Homeweeks and Earnest Living.

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	Air Wick Essential Mist Starter Kit	EQUSUPRO 150ml Black Metal Essential Oil Diffuser
Mist Settings	3 (low / medium / high)	Continuous, intermittent (30s on/30s off)
Timer Settings	8 hour cycle, 16 hour standby	None (continuous mist)
Lighting	Blue light indicator	7 LED colors
Noise Level	Silent	Whisper quiet
Power Source	4× AA batteries	Corded electric
Coverage Area	Single room (~12-15 sq m)	~10 sq m
Material	Plastic	Black Metal
Dimensions	7.25 x 6.19 x 3.44 inches; 15.84 ounces	—
Tank Capacity	—	150ml

← See the full ranking of best essential oil diffusers