{"niche":"...","description":"What is the most energy-efficient portable humidifier available?","products":[{"brand":"PureGuardian","model":"H940AR","price_gbp":14.69,"origin_country":null,"specs":{"output":"6436","capacity":"1893","humidistat":false,"auto_shutoff":true,"coverage_area":"350"},"confidence_score":null,"sources":[{"label":"Guardian Technologies","url":"https://guardiantechnologies.com/products/h940-0-5-gallon-30-hour-ultrasonic-cool-mist-humidifier-by-pureguardianr-reg","currency":"USD","source_country":"US","price":19.99,"price_gbp":14.69,"scraped_at":"2026-08-28T05:01:19.348379"},{"label":"Home Depot","url":"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","currency":"USD","source_country":"US","price":34.99,"price_gbp":25.72,"scraped_at":"2026-08-28T05:01:19.348379"},{"label":"Kohl's","url":"https://www.kohls.com/product/prd-3556230/pureguardian-30-hour-ultrasonic-cool-mist-humidifier.jsp","currency":"USD","source_country":"US","price":34.99,"price_gbp":25.72,"scraped_at":"2026-08-28T05:01:19.348379"}],"summary":"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.","ideal_for":"..."},{"brand":"Vicks","model":"VUL525","price_gbp":12.42,"origin_country":null,"specs":{"humidistat":false,"noise_level":"39","auto_shutoff":true,"coverage_area":"250"},"confidence_score":null,"sources":[{"label":"Best Buy","url":"https://www.bestbuy.com/product/mini-filter-free-cool-mist-humidifier-small-room-variable-mist-control-works-with-vicks-vapopads-white/JC24TRQPPZ","currency":"USD","source_country":"US","price":39.99,"price_gbp":29.4,"scraped_at":"2026-08-28T05:01:19.348379"},{"label":"McGrocer","url":"https://mcgrocer.com/products/vicks-vul525-mini-cool-mist-ultrasonic-humidifier-1-8-litre-2026425667","currency":"USD","source_country":"US","price":88.55,"price_gbp":65.09,"scraped_at":"2026-08-28T05:01:19.348379"},{"label":"Pharmazone","url":"https://pharmazone.com/en-ae/products/vicks-humidifier-mini-cool-mist-1-8l-525e1","currency":"USD","source_country":"US","price":16.9,"price_gbp":12.42,"scraped_at":"2026-08-28T05:01:19.348379"}],"summary":"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.","ideal_for":"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。"}]}