PureGuardian H920 humidifier review

PureGuardian H920 Cool Mist Humidifier Review

PureGuardian H920 humidifier review

PureGuardian H920 is ultrasonic cool mist humidifier for small spaces up to 150 square feet (14 square meters). The humidifier is small size and low weight. PureGuardian H920 outputs 0.5 gallons (1.9 liters) per hour and runtime is up to 10 hours. It has super low noise level.

Design and size

PureGuardian H920 has a cone shape. Bottom and top are white but the middle has blue transparent glass so you will always see the water level. Cone shape makes PureGuardian H920 very
compact and it is perfect for nursery or desktop. The humidifier is 10.8 inches tall and 5.2 inches wide. Weight is only 1.14 pounds (0.5kg).

Design includes also directional mist nozzle which is a cool feature and an optional night light.


PureGuardian H920 has some great features.

  • It has a Silver Clean technology. With this technology, the tank is resistant to mold and mildew.
  • Automatic safety shut-off when the tank is empty.
  • Two mist settings – low and high.
  • Low Water Indicator – you will know when it’s time to refill the water tank.

Noise level

Ultra-Quiet Operation – humidifier is near silent while operating.

Maintenance and upkeep

PureGuardian H920 requires low maintenance. It has no evaporating pads, filters or wicks to wash or replace. Also, Silver Clean technology helps to extend the life of the humidifier and guarantees cleaner mist output.

You will have to refill the tank at least twice a day. Refill process is easy. Just remove the blue water container. Then unscrew a fill cover and fill water, screw the cover back on and that’s it.


PureGuardian H920 is compact, stylish, cheap cool mist humidifier. It is perfect for small spaces, for example, your bedroom. It is energy-efficient, has no filters to replace, requires low maintenance, quiet operation. Great choice.


  • Well made, nice design
  • Water refill indicator
  • Only 12W energy consumption
  • Nightlight
  • Cleaning brush


  • Could be a bigger tank size
  • Could be better controls




PureGuardian H920

Coverage (Sq ft / m2)

150 / 14


Humidifier Technology


Type of humidifier

Cool mist

Moisture output per 24h (Gallons/liters)

0.5 / 1.9

Tank size (gallons/liters)

0.2 / 0.7

Run time per tank

10 hours

Removable tank

Water refill indicator


Humidity display

Mist output control

Control type


Programmable timer

Automatic safety shutoff

Carrying handle


Remote control


Filter price

Filter cleaning and (or) replace

Germ protection

Demineralization cartridge

Noise level

Low noise

Energy usage (max)



24V / 120V

Size (inches / centimeters)

Height: 10.8 / 27

Width: 5.2 / 13

Depth: 5.2 / 13

Weight (pounds / kg)

1.14 / 0.5


3 year limited

Overall Rating (max 5)

(4.1 / 5)

15% Price/performance

(4 / 5)

5% Design

(4 / 5)

35% Performance

(4 / 5)

15% Features

(3.5 / 5)

10% Noise level

(5 / 5)

20% Maintenance & Upkeep

(5 / 5)


Other useful resources

Read our full humidifier buying guide here.

See Indoorbreathing humidifier comparison charts. (Humidifiers by mist type, by type, by price and coverage area).O

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