Our expert team regularly tests the most popular home appliances on the market. To find the best humidifiers available today, we tested everything from their humidifying performance to how easy they are to maintain and use for those who like easy-to-use options. We divided our tests into five separate metrics.
Effectiveness
We tested humidifying performance using a 150 square foot testing room, which correlates to an average-sized bedroom. We assured that this room was at the same temperature and humidity levels when we tested each model with the help of a dehumidifier. We then ran each model on its highest setting in this room for 1 hour, monitoring the humidity using an Extech RHT20 Humidity and Temperature Data Logger. We awarded scores based on the speed of humidification, the maximum level of humidity reached within the given hour.
Ease of Cleaning
Our testing involved multiple rounds of cleaning for all humidifiers in our review. We meticulously noted the ease of scrubbing each water tank, checked for any hidden nooks where mold could accumulate, and inspected for scale buildup. Additionally, we evaluated the clarity and specificity of the manufacturers' cleaning instructions. We particularly appreciated models that offered companion apps with perfectly illustrated instructions or video tutorials on effective cleaning methods.
Convenience
Regarding our convenience testing, we aimed to assess several key factors. Initially, we assessed whether each device features a humidistat, automatically adjusting the humidifier's output based on the room's relative humidity. Additionally, we investigated the presence of smart functionalities, such as a companion app or nighttime mode, and assessed the ease of control through the interface/buttons. Finally, we examined the ease of refilling each appliance, considering factors like bottom-fill or top-fill design.
Run Time
Assessing the overall run time was a simple process. We operated each humidifier until it shut off, then added 50 mL of water into the base of each device (excluding the tank) and started the operation while running a timer. This provided us with the data needed to calculate the duration each humidifier would last on a full tank of water.
Operation Cost
To determine electricity usage, we plugged each model into a wattage meter and ran them on high for 2 hours. To calculate an estimated cost, we used the most up to date national average for cost/kwh from here.