Humidifiers / Dreo
Dreo HM713S 6L Smart Humidifier
Warm mist that never boils: 86°F is comfort, not sterilisation.
Overall score 6.8/10
Pros
- + One of the very few humidifiers at any price that publishes a real output figure — 300 mL/hr cool, 500 mL/hr warm
- + Genuine closed-loop humidistat rated ±5% with a 30-90% setpoint range and 30 days of app history
- + 6L top-fill tank plus app, Alexa and Google control for $89.99
- + Because output is published, you can actually compute the refill interval instead of trusting a runtime claim
Cons
- − "Warm mist" tops out at 86°F by Dreo's own spec — warm water, not steam. It does not sterilise, and it costs 280W against 26W in cool mode
- − Ultrasonic in both modes, so it aerosolises minerals as white dust; the mineral-absorption pad reduces scale, it does not stop dust
- − The 60-hour runtime and the published 300-500 mL/hr output contradict each other — 6L at 300 mL/hr is 20 hours, so 60 hours is the lowest setting
- − Dreo sells no first-party replacement mineral pad; the only options are unverified third-party multi-packs
- − Twelve-month warranty and no published coverage figure or independent noise measurement
Dreo HM713S 6L Smart Humidifier review: what the specs say
Warm mist that never boils: 86°F is comfort, not sterilisation. At $89.99, Dreo's 2023 model sits in the middle of the range — the humidifiers we compare run from $19.79 to $299.99. It scores 6.8/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Humidity Control at 8.5/10 — whether there is a genuine closed-loop humidistat holding a setpoint, or just fixed output steps and a timer with a humidity label on it. The weakest is Freedom From White Dust at 2.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: "Warm mist" tops out at 86°F by Dreo's own spec — warm water, not steam. It does not sterilise, and it costs 280W against 26W in cool mode; and ultrasonic in both modes, so it aerosolises minerals as white dust; the mineral-absorption pad reduces scale, it does not stop dust. Every specification on this page comes from Dreo's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Humidification Technology | Ultrasonic, sold as "cool and warm mist". The warm mode pre-heats the water before the piezo disc atomises it — it does not boil it |
| White Dust & Mineral Aerosol | Yes, in both modes. Warming the water does not change the mechanism: a piezo disc still aerosolises everything dissolved in it. the EPA's "Use and Care of Home Humidifiers" states that ultrasonic and impeller humidifiers "are very efficient at dispersing minerals in tap water into the air" and that they "can disperse materials, such as microorganisms and minerals, from their water tanks into indoor air". Dreo fits a mineral-absorption pad and sells no first-party replacement, so the aftermarket pads on Amazon are third-party and unverified |
| Tank Capacity | 6 L / 1.58 gal, top-fill |
| Rated Output per Day | Published, unusually: 300 mL/hr in cool mist, 500 mL/hr in warm mist — 7.2 L/day and 12 L/day respectively if run continuously. Both exceed the 6 L tank, so the 60-hour runtime cannot be a high-output figure |
| Quoted Runtime (and at which setting) | "Up to 60 hours" — arithmetic settles this one. 6 L at the published 300 mL/hr cool-mist rate is 20 hours, and at 500 mL/hr warm it is 12. The 60-hour claim implies about 100 mL/hr, i.e. the lowest setting only |
| Rated Room Coverage | Not published by Dreo on the product page — the only sizing language is the retail headline "for Large Room". Dreo publishes output instead, which is arguably the more useful number |
| Humidistat | Real closed-loop humidistat. Dreo rates the sensor at ±5% precision with a 30-90% RH adjustable target, plus manual, auto and sleep modes and 30 days of app-side history |
| Noise | 28 dB claimed by Dreo — a manufacturer figure with no independent measurement published, and comparable ultrasonics measure several dB higher in third-party testing |
| Filters & Cartridges (Annual Cost) | A mineral-absorption pad sits in the tank. Dreo does not sell a first-party replacement pack; the only replacements listed are third-party multi-packs, so budget is unclear and the pad does not eliminate white dust regardless |
| Cleaning Burden & Dishwasher-Safe Parts | Top-fill opening takes a hand and the aroma tray lifts out, but the warm-mist heater adds a scale surface an ordinary cool-mist ultrasonic does not have. Nothing is dishwasher-safe. Dreo ships a cleaning guide and brush in the box, which is more than most |
| UV / Antimicrobial Claim | None claimed. No UV lamp, no antimicrobial coating. The warm mode is not hot enough to sterilise anything |
| Mist Temperature & Burn Risk | This is the trap. Dreo's own spec says warm mode "reaches 86°F in 5 minutes" — 30°C, barely above body temperature. That is comfort, not sterilisation: a genuine warm-mist unit boils at 212°F. It also means the 280W warm mode buys you no hygiene benefit at all, and the mist is not sterile |
| Connectivity | 2.4GHz Wi-Fi, Dreo app, Amazon Alexa, Google Assistant |
| Material | Not published by the manufacturer |
| Warranty | 12 months |
Compare Dreo HM713S 6L Smart Humidifier With
Cheaper Alternative
Levoit Classic 300S (Classic300S) — $79.99
Premium Alternative
Carepod One Stainless Steel Humidifier (MS031S2) — $279.00