AC4100 4-in-1 11" Desktop Air Purifier

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 3 speed settings and an optional UV-C light on an easy-to-use knob. Made for small rooms up to 78 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. 


The AC4100 does come equipped with UV functionality but it is very poorly implemented. First of all, the bulb used for UV is only 2 watts. Second, its situated behind a metal bracket at the very bottom of the air purifier. We’re not even sure how any UV light makes contact with any air that moves through the air purifier.

The bottom line – do not buy this air purifier for its UV functionality. The good news though: you don’t need to kill germs to filter them from the air. This unit will do just fine removing germs from the air in very small rooms with its HEPA filter. It doesn’t need to kill them to remove them from the air.


4-in-1 Desktop Air Purifier

True HEPA air filter reduces up to 99.97% of harmful germs, dust, pollen, pet dander, bacteria, mold spores, and other allergens as small as 0.3 microns from the air

Compact Design

Stylish, white 11-inch purifier is perfect for smaller areas such as dorm rooms, offices, nurseries, laundry rooms, hallways, or bedrooms and fits great in small spaces. Conveniently ideal for desktops and tabletops

Reduces Germs

UV-C light helps kill airborne viruses such as Influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds. The optional UV-C light provides additional defense against germs and mold spores

Traps Allergens

The pre-filter captures dust, pet hair, pet dander, and other large particles while extending the life of the HEPA filter. Replace every 6-8 months with GermGuardian Filter E (model FLT4100 - sold separately)

Reduces Odors

The activated charcoal filter helps to reduce common and unwanted odors from pets, smoke, tobacco, bacteria, cooking fumes, wildfire smoke, and more. Breath fresher and cleaner air within your home regardless of the season

Easy-to-use Settings

This tabletop air purifier features an ultra-quiet design with 3 convenient speed settings of low, medium, or high. Soundly sleep while your air is purified