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    GermGuardian AC5900WCA

    Room Air Purifiers / Large Room (350 to 650 sq. ft.)
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    AC5900WCA
    Shop
    This air purifier from GermGuardian has
    • a filter indicator
    • a programmable timer
    • 3 speeds
    It’s designed for floor or tabletop use in a 365 sq ft space and weighs 14 pounds.
    PRICE
    Shop
    Description
    This air purifier from GermGuardian has
    • a filter indicator
    • a programmable timer
    • 3 speeds
    It’s designed for floor or tabletop use in a 365 sq ft space and weighs 14 pounds.
    Pros & Cons
    Unlock full review and ratings with membership.
    GermGuardian AC5900WCA
    Shop

    CR Expert Take

    How did it perform in our owner surveys and expert lab testing?

    What goes into the Overall Score?

    Ratings Scorecard

    OWNER SURVEYS

    Predicted Reliability
     /  5
    Owner Satisfaction
     /  5

    EXPERT LAB TESTS

    Dust, pollen, smoke removal (low)
     /  5
    Dust, pollen, smoke removal (high)
     /  5
    Noise (low speed)
     /  5
    Noise (high speed)
     /  5
    Ease of use
     /  5
    Annual cost ($)
     /  5

    Detailed Test Results

    Impressive at removing dust, smoke, and pollen from a room’s air when run at its highest speed, but less effective at low speed. This model is relatively loud on low speed but was somewhat noisy (though average) on its highest speed. Easy to operate its controls, carry it, and clean or replace its filter(s).

    About

    Overall score for the GermGuardian AC5900WCA is mainly how well the model removed dust and smoke from a test chamber, plus quietness for room purifiers.
    Dust/pollen/smoke removal: How well models cleared air of fine clay dust and cigarette smoke; performance of portables is at their highest and lower speeds. Ones that scored well for dust removal should perform comparably for pollen.
    Noise: Based on instrument measurements with a portable model running at its highest and lowest speeds.

    Price & Shop