# ... — 经过验证的规格比较

> 所有规格数据均已通过官方渠道验证。

What is the most energy-efficient portable humidifier available?

## 产品列表

### PureGuardian H940AR
```yaml
product: pureguardian-h940ar
brand: PureGuardian
price_gbp: 14.69
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
output: 6436
capacity: 1893
humidistat: false
auto_shutoff: true
coverage_area: 350
```

- **价格:** £14.69 [^1]
- **概述:** The PureGuardian H940AR is an ultrasonic cool-mist humidifier with a 0.5-gallon tank, aromatherapy tray, night light, Silver Clean protection, and up to 30 hours of operation on low speed. It suits small rooms, bedrooms, and users who want quiet operation and basic automatic shutoff without advanced humidity control.
- **最适合:** ...
- **附加来源:** [^2], [^3]

### Vicks VUL525
```yaml
product: vicks-vul525
brand: Vicks
price_gbp: 12.42
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
humidistat: false
noise_level: 39
auto_shutoff: true
coverage_area: 250
```

- **价格:** £12.42 [^4]
- **概述:** The Vicks VUL525 is a compact ultrasonic cool-mist humidifier with a 1.8-litre tank, adjustable mist direction, quiet 39 dB operation, and VapoPad compatibility. It suits small bedrooms, nurseries, and personal spaces up to 250 square feet, with automatic shutoff for safety.
- **最适合:** 由于采用超声波设计，该产品的功耗为 21 watts，同时可调节雾气输出，适用于面积不超过 250 square feet 的空间，因此是一款相对节能的选择。
- **附加来源:** [^5], [^6]

---
## 参考来源
[^1]: Guardian Technologies, 访问日期 2026-08-28. https://guardiantechnologies.com/products/h940-0-5-gallon-30-hour-ultrasonic-cool-mist-humidifier-by-pureguardianr-reg
[^2]: Home Depot, 访问日期 2026-08-28. https://www.homedepot.com/p/Pure-Guardian-0-5-gal-Ultrasonic-Cool-Mist-Humidifier-for-Rooms-up-to-350-sq-ft-in-Blue-White-30-Hour-Runtime-on-Low-Aromatherapy-H940AR/300353650
[^3]: Kohl's, 访问日期 2026-08-28. https://www.kohls.com/product/prd-3556230/pureguardian-30-hour-ultrasonic-cool-mist-humidifier.jsp
[^4]: Best Buy, 访问日期 2026-08-28. https://www.bestbuy.com/product/mini-filter-free-cool-mist-humidifier-small-room-variable-mist-control-works-with-vicks-vapopads-white/JC24TRQPPZ
[^5]: McGrocer, 访问日期 2026-08-28. https://mcgrocer.com/products/vicks-vul525-mini-cool-mist-ultrasonic-humidifier-1-8-litre-2026425667
[^6]: Pharmazone, 访问日期 2026-08-28. https://pharmazone.com/en-ae/products/vicks-humidifier-mini-cool-mist-1-8l-525e1