GermGuardian AC5900WCA True HEPA Air Purifier

(2 customer reviews)
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  • 3 IN 1 AIR PURIFIER FOR HOME : True HEPA air filter reduces up to 99.97 percent of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the air
  • KILLS GERMS : UV C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds
  • TRAPS ALLERGENS : Pre filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter
  • REDUCES ODORS : Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more
  • QUIET OPERATION : The lowest setting can be used as gentle white noise at night for a quiet, restful sleep
  • SETTINGS : 3 speed high performance settings, up to 8 hour timer, and an optional UV C light
  • ROOM SIZE : This powerful 21 inch purifier filters air 4 x per hour at max speed in large rooms up to 338 square feet. CADR RATING: Dust (220) Pollen (215) and Smoke (218)
  • GENUINE REPLACEMENTS : Only use Genuine Germ Guardian replacement parts to maintain performance
  • REPLACEMENTS : Replace the filter every 6 to 8 months and the UV C bulb every 10 to 12 months. Filter: Germ Guardian filter J (model FLT5900). UV C Bulb: Model LB4000
  • AHAM VERIFIED & ENERGY STAR CERTIFIED : This air purifier was rated for its ability to filter tobacco smoke, dust, and pollen from rooms and be Energy Star Certified and CARB compliant


BREATHE FRESH AND CLEANER AIR GermGuardian air purifiers kill germs and viruses, filter odors, and trap allergens with a True HEPA filter and optional UV C light to deliver crisp, refreshing air to your home. POWERFUL AND CUSTOMIZABLE Your at home comfort can be customized with 5 speed settings, ultra quiet mode on the lowest speed setting, programmable timer (up to 8 hours), and an optional UV C light on an easy to use top panel.

Made for large rooms up to 338 sq. feet. WHY USE GENUINE GERMGUARDIAN FILTER REPLACEMENTS Your purifier is only as powerful and effective as the filter you put inside, and our Genuine GermGuardian replacement parts are essential for maintaining product performance.

Each filter or bulb is designed specifically for a particular unit style. Not only will genuine replacement parts fit like a glove, but they also have the combination technology to match so that you can get the most out of your air purifier.

AHAM VERIFIED AHAM verified products are rated for their ability to clean tobacco smoke, dust, and pollen from rooms. CADR RATING Dust (220) Pollen (215) and Smoke (218) 3 YEAR WARRANTY GermGuardian gives you reassurance and a US based tech support team with a 3 year limited warranty in addition to your purchase.

VOLTAGE Plug the power cord into a 120V AC outlet. Cord Length: 6′

Specification: GermGuardian AC5900WCA True HEPA Air Purifier

Weight18 lbs
Dimensions10 × 16 × 21 in

Guardian Technologies





2 reviews for GermGuardian AC5900WCA True HEPA Air Purifier

4.5 out of 5
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  1. jadd

    Have no complaints at this time. Got this for my mom at a retirement home. She smokes. It does run quiet on one and two. Is noisy on 3. Works fine on 2 Only had a few days. In does seem to be built with good material.

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  2. Catlover

    I haven’t had it long enough to be sure its performance, but it looks good and isn’t too loud.

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