- Pure Warm Mist: Boils water to release steam; up to 212°F high-temperature steam; produces cleaner warm mist with lower water quality requirements; reduces dust common in ultrasonic humidifiers; ideal for families with children, elderly, or pets sensitive to air dryness
- Rapid Humidification: Begins mist production in 30-40 minutes of operation; delivers a maximum 500 mLl/h output with a 4-liter capacity; covers up to 500 square feet; offers standard, fast, and sleep modes; timer settings from 1 to 12 hours
- Safety Protection: Features a child lock and a special design above the mist outlet to prevent accidental contact; auto shuts off if the unit is tilted beyond 45 degrees, if the water tank is empty (with a red indicator lights up), or if the top cover is opened
- Easy Maintenance: filter-free design requires no replacement parts; dishwasher safe components include a removable top cover and a 304 stainless steel tank
- Usage Tips: Filtered tap water recommended; clean the water tank and removable cover plate regularly, at least once a week; use citric acid or vinegar for descaling (better with auto clean mode); avoid using highly concentrated acidic cleaning solutions
Comparison Chart
| Model | GLS04 | GLH20WIFI |
| Type | Steam | Ultrasonic |
| Voltage | 120 V/60 Hz | 120 V/60 Hz |
| Power | 600 W | 105 W |
| Water Tank Capacity | 1.1 Gal/4 L | 5.3 Gal/20 L |
| Mist Output | 500 mL/h | 1000 mL/h |
| Filter Needed | ✖ | ✔ |
| Remote Control | ✖ | ✔ |
| WiFi Control | ✖ | ✔ |
| Timer | 12 | 12 |
| Ambient Lighting | 1 Color | 6 Colors |
| Product Size | 8.3 x 9.4 x 13.0 in | 11.4 x 10.4 x 25.9 in |
| Product Weight | 9.5 lb | 14.6 lb |
| Room Size Coverage | Up to 500 sq ft | Up to 2,000 sq ft |
| Power Cord Length | 6.6 ft | 6.6 ft |
| Suggested Water Type | Filtered Tap Water or Cleaner Water | Pure Water |