Everlasting Comfort 6L Cool Mist Humidifier
Best for: Big rooms, humidity + aroma in one, value
The big-tank value — 6 liters for 50-hour runs with an essential-oil tray, humidifier and diffuser in one budget box.
Everlasting Comfort bundles two nightstand gadgets: a 6-liter cool-mist humidifier (up to 50 hours) WITH a built-in essential-oil tray, so it perfumes as it humidifies. Quiet operation, high mist output for large rooms, auto-shutoff. It's the value answer to the Levoit's tank size, minus the smart controls — a big, simple, dual-purpose unit for people who want humidity and aroma without two devices.
Price & where to buy
Prices checked 2026-10-31Prices shown were last checked on 2026-10-31 and can change at any time — the price on the retailer's site at checkout is the one that applies. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the price at our recommended retailer as at our last check of that offer (2026-10-31) and, when Amazon reports one, its list price for comparison. Amazon prices come from Amazon's own product data service and are refreshed twice a day; each one shows the date and time Amazon gave it, and one older than 24 hours is replaced by “Check price”. Other retailers' prices are checked by hand and show the date of that check. Retail prices move constantly, so the price on the retailer's own page at checkout is the one that applies. More on Amazon prices
Should you buy it?
What we like
- 6L tank, up to 50-hour runs
- Built-in aromatherapy oil tray
- High output for large rooms
- Strong value vs smart 6L units
What to know before buying
- Aroma is subtle vs real diffuser
- No smart control or warm mist
- Big footprint
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At a glance
How it scores
How our 8/10 breaks down — rated on the dimensions that matter most for humidifiers, from published specifications and third-party test data, not the marketing.
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Compare with alternatives
Quick verdicts for the humidifiers most often considered alongside the Everlasting Comfort 6L Cool Mist Humidifier.
Everlasting Comfort 6L Cool Mist Humidifier vs Levoit Classic 300S Smart Humidifier
The smart-bedroom benchmark — app + Alexa control, a 6L tank rated by Levoit for up to 60-hour runs, and cool mist for dry-winter nights.
→ Dry-winter bedrooms, smart-home control
Levoit Classic 300S Smart Humidifier review →Everlasting Comfort 6L Cool Mist Humidifier vs Pure Enrichment MistAire Ultrasonic Humidifier
The reliable value classic — a quiet 1.7L cool-mist humidifier with a night light, the no-app bedroom staple with a 5-year warranty.
→ Simple no-app bedroom humidity, warranty peace
Pure Enrichment MistAire Ultrasonic Humidifier review →Everlasting Comfort 6L Cool Mist Humidifier vs AquaOasis Cool Mist Humidifier (2.2L)
The no-nonsense bestseller — a quiet 2.2L cool-mist humidifier with a 360-degree nozzle and a simple dial, no app required.
→ Simple no-app nightstand humidity, dry-winter relief
AquaOasis Cool Mist Humidifier (2.2L) review →Not sure which one is right for you?
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More humidifiers we compared
See all →GENIANI Cool Mist Humidifier
raydrop Cool Mist Humidifier (Compact)
Honeywell Cool Moisture Humidifier
Vicks Filter-Free Cool Mist Humidifier
Frequently asked questions
Humidifier and diffuser in one — any catch?
The oil tray scents lightly via the mist — pleasant but subtler than a dedicated diffuser. For strong aroma keep a separate diffuser; for light background scent this saves a device and an outlet.
6L vs Levoit's 6L?
Same tank size and a similar runtime (up to 50 hours against Levoit's up to 60), and both are cool-mist only; Levoit adds app control for more money. Everlasting is the manual value version.
Coverage?
Large — high mist output handles big bedrooms and open-plan spaces the 1.7L compact units can't.
Cleaning the oil tray?
Wipe it with the weekly clean so old oil doesn't turn rancid — a small extra step for the combo feature.