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LEVOIT Classic 300S vs Dreo HM713S (2027)

Two 6 liter smart humidifiers compared: the LEVOIT Classic 300S against the Dreo HM713S on mist type, warm mist speed, app depth and bedroom fit.

TGBy TrueGear Research TeamIndependent editorial teamLast updated How we researchResearch-based assessment · Humidifiers
Specs verified against manufacturer docs
No paid placements
Independently funded by readers
Updated 2026-11-01
LEVOIT Classic 300S vs Dreo HM713S (2027) featured graphic

What owners report

Most praised
  • The top-fill tank turns refilling into a quick pour at the sink instead of a wrestling match with a wet tank
  • Auto Mode holds a bedroom steady overnight instead of swinging between clammy and dry
  • The sleep mode display dims far enough that the machine disappears into a dark nursery
Common complaints
  • Hard tap water leaves a fine white film on nearby furniture within a few days of use
  • The sponge filter needs replacing sooner than new buyers expect in mineral-heavy water
  • App setup trips up some buyers who only wanted the buttons on the machine itself

What owners report

Most praised
  • The warm mist speed is the first thing guests notice, since the room feels different within minutes
  • The tall mist column keeps bedding near the machine from getting damp while the far side still benefits
  • Cleaning reminders in the app stop the machine from quietly sliding into a neglected, musty state
Common complaints
  • The slim tower wobbles when bumped, and owners move it away from walkways for that reason
  • The ambient light is hard to fully tame for sleepers who want total darkness
  • Some buyers never use the trend charts and wish the same machine came in a simpler version

Our recommendation

Buy the 300S if your room needs reliable cool mist, a top-fill tank and auto humidity at a mid-range price. Buy the HM713S if winter warm mist, fast warmth and app humidity trends matter more than the lowest price. Both hold 6 liters and cover a large bedroom, so the decision is mist type and control style, not size. For a household that runs warm mist all winter, the Dreo earns its premium. For a household that runs cool mist year-round, the Levoit is the simpler and cheaper answer.

Mist type and winter behavior

The 300S is cool mist only, which suits year-round bedrooms and nurseries where heat is unwanted. The HM713S adds warm mist that arrives in about 5 minutes, which suits cold bedrooms and congested weeks. A buyer who never wants warm mist pays for a feature on the Dreo that stays off. A buyer who wants it will feel the Levoit missing it every cold night.

Tank design and refilling

Both tanks hold 6 liters and run up to 60 hours, but the Levoit top-fill design is the easier refill: pour from above without moving the tank. The Dreo tower tank requires more handling, and its narrow shape asks for a careful, stable spot. Over a heating season, the refill experience favors the Levoit, even though capacities match.

App depth and smart control

Both offer app and voice control, but the Dreo app adds 30-day humidity trends and cleaning reminders, while the Levoit VeSync system centers on target humidity, schedules and auto mode. Trend watchers and maintenance planners get more from Dreo. Set-and-forget buyers get everything they need from Levoit, with less to learn.

Bedroom fit and looks

The Levoit is a squat, stable bedroom machine with a sleep mode that dims properly. The Dreo is a narrow design tower that looks better in a styled room but is easier to knock and harder to fully darken. For a nursery or a crowded nightstand, the Levoit shape wins. For a dresser in a designed bedroom, the Dreo shape wins.

Choose LEVOIT Classic 300S Smart Ultrasonic Humidifier if…

  • You want cool mist year-round and do not need warm mist
  • Top-fill refilling without moving the tank matters to you
  • Your nightstand or nursery needs a stable, squat machine
  • You prefer VeSync control and a lower mid-range price

Choose Dreo HM713S Smart Warm and Cool Mist Humidifier if…

  • Winter warm mist is a regular need, not an occasional wish
  • Warm mist in about 5 minutes matters at bedtime
  • Humidity trends and cleaning reminders would change your routine
  • A design-led tower suits your bedroom better than a squat box

Questions, answered

Which covers a larger room?

The Dreo, slightly: up to 550 sq ft against the Levoit 505 sq ft top figure. In a typical large bedroom the difference is negligible, and both cover the room. For rooms well over 550 sq ft, step to the LV600S instead.

Which is quieter at night?

Both are bedroom-quiet on low, with the Levoit rated at most 30 dB. The Dreo sleep experience depends more on taming its ambient light than on fan noise, so total-darkness sleepers should check the light settings first.

Can either use essential oils?

Yes, both support aroma use through their own systems: the Levoit with aroma pads and the Dreo with a dual aroma pad tray. Never pour oil directly into the water tank on either machine.

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