Costco两款加湿器1.5加仑/2加仑 折扣。 第一款PureGuardian 100-Hour Ultrasonic Warm/Cool Mist Humidifier & Aroma Tray 原价119.99，现价79. 99。 Features: Large 1.5 Gallon Tank 3-speed Mist Control and On/Off Night Light Aroma Tray Option Helps Create A Relaxing Environment 第二款 HoMedics Total Comfort Ultrasonic Humidifier Warm & Cool Mist 原价84.99， 现价64. 99。 Features: Two-gallon capacity / 120 hour run time Electronic controls including humidistat, timer and night light Clean Tank Technology helps protect the tank from mold and mildew Easy Fill dual tanks