GermGuardian® AC4825 3-in-1 True HEPA Air Purifier

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The GermGuardian® AC4825 3-in1 HEPA Air Purifier has been discontinued.

The GermGuardian® AC4825 Air Purifier has been discontinued. As an alternative we recommend the QuietPure Whisper HEPA Tower Air Purifier by Aerus. Filters available for purchase below.

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The slim yet efficient 3-in-1 air purifier by GermGuardian® offers 3 stages of effective filtration—the pre-filter with activated carbon captures large dust particles, lint and pet hair while reducing household odors; the True HEPA filter captures 99.97% of airborne particles as small as .3 microns in size, such as dust mites, debris, mold spores, pollen and pet dander; and finally the UV-C light kills bacteria and viruses while decomposing remaining odor molecules caused by smoking, cooking and pets. This GermGuardian® AC4825 air cleaner is ideal for most bedrooms, covering areas up to 238 square feet based on 4 air changes per hour. With it's sleek lines and modern design, the AC4825 air purifier fits easily into any space of your home or office with style. The AC4825 is quiet, easy to maintain, simple to use and won't break the budget.
  • Is sensitive to allergies
  • Not only wants to destroy germs and bacteria but odors as well
  • Has limited space and would benefit from a smaller air purifier

  • Unique 3-stage filtering:
    • Pre-filter with activated carbon
    • True HEPA filter
    • UV-C light technology
  • Cleans areas up to 238 sq. ft.
  • CADR Rated 100+
  • 3 fan speed controls
  • Filter change indicator
  • UV bulb replacement indicator
  • ENERGY STAR rated
  • 3-yr limited warranty
1. Airborne Particulate Filtration
2. Gas, Chemical & Odor Filtration
3. Room Coverage
4. Noise Rating
5. Filter Life & Replacement Costs
6. Ease of Operation & Filter Replacement
7. Quality of Construction: Air-tight design, no off-gassing
8. Electronic Filter Life Monitoring
9. Manufacturer's Credibility, Warranty & Return Policy
10. Quality of Filters
11. Value for Price

The AC4825 3-in-1 air cleaning system by GermGuardian® with true HEPA filtration and UV-C sanitizer captures 99.97% of airborne allergens, kills airborne germs and bacteria and reduces common household odors.


  • Sleek and stylish space-saving tower design
  • Lightweight and easy to move around
  • Pre-filter captures large dust particles like lint and pet hair
  • Charcoal filter reduces common household odors
  • True HEPA filter captures 99.97% of airborne allergens such as pollen and mold spores
  • UV-C light destroys airborne germs and bacteria
  • Long-lasting filter life with an average of 8 months and only 1 filter to change
  • Filter change indicator alerts you when it is time to change the filter or bulb
  • Filter replacement is made easy and effortless with no headaches
  • 3 fan speed controls include an ultra-quiet low speed


This 3-in-1 True HEPA air purifier by GermGuardian® is ideal for allergy and asthma sufferers with it's unique 3 stage filtration process. The AC4825 captures 99.97% of dust and allergens, eliminates airborne bacteria, viruses, germs and mold spores while reducing common household odors from pets, smoking and cooking. Standing just 22 inches tall, this lightweight air cleaner fits perfectly in small- to medium-sized areas and runs ultra quiet on low speed, making it ideal for bedrooms.

GermGuardian® AC4825 3-in1 HEPA Air Purifier


GermGuardian® AC4825 3-in1 HEPA Air Purifier

  • GermGuardian's best-selling air cleaner for reducing exposure to indoor asthma and allergy triggers
  • Included Filters:
    • Pre-filter and activated carbon combo filter
    • True HEPA filter
    • UV-C light technology
  • Maximum coverage: up to 150 sq. ft. (2 air changes/hr)
  • Recommended coverage: up to 228 sq. ft. (4 air changes/hr)

Technical Specifications of GermGuardian® AC4825 3-in1 HEPA Air Purifier

  GermGuardian® AC4825 3-in1 HEPA Air Purifier
Model Number
Model Number AC4825
Square Foot Coverage
Square Foot Coverage Up to 228 sq. ft.
Power Requirements
Power Requirements 120V 60Hz 0.5A, 62W
Clean Air Density Rate (CADR)
Clean Air Density Rate (CADR) Pollen: 123, Dust: 131, Smoke: 112
Decibels Quiet to Average
Dimensions 10.25"L x 6.75"W x 21.5"H
Weight 8.55 lbs.
Finish / Color
Finish / Color Charcoal grey
Filters included
Filters included Combination filter: Pre-filter, True HEPA, Charcoal, UV-C Lamp
UV - Ultraviolet germicidal light
UV - Ultraviolet germicidal light 8W bulb - replace every 10-12 months
Fan Speeds
Fan Speeds 3 Fan Speeds
Indicators Filter and UV Bulb Change Indicators
Fan Control
Fan Control Dial
Warranty 3-year Limited Warranty

Video Reviews of GermGuardian® AC4825 3-in1 HEPA Air Purifier

Filters & Accessories for GermGuardian® AC4825 3-in1 HEPA Air Purifier

Germ Guardian Air Purifier Model AC4900CA Replacement Filter

Includes 1 replacement filter for Germ Guardian Air Purifier models AC4900CA & AC4825. Includes Pre-filter, True HEPA, and Charcoal layer. Replace as need when filter turns grey or black (approx every 6-8 months).

Availability: Temporarily Out of Stock  



Germ Guardian GENUINE Replacement UV Bulb LB4000

Replacement UV-C bulb for the Guardian Technologies™ UV-C and True HEPA Air Cleaning System models: AC4900CA, AC4825, AC4850, AC4300BPTCA, AC5300B, AV5350B, AC5350W.

Availability: In Stock. Ships Same or Next Business Day.




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