GermGuardian AC4825E HEPA Tower Air Purifier
- 153 sq ft every 12.5 minutes, 743 sq ft each hour
- HEPA filter captures 99.97% down to 0.1 micron
- Activated carbon filter reduces scents from cooking and pets
- Optional UV-C light
- Three speeds including a quiet sleep mode
- CARB and ETL certified, zero ozone
- 22 inch tower, gray
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A tower purifier with HEPA and carbon filtration for bedrooms, offices and larger spaces. The listing leaves out noise level and power draw.
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ASIN: B004VGIGVYModel: AC4825Category: HEPA Air Purifiers
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Overview
A bedroom, office or dorm resident gets a tower purifier that circulates room air through a HEPA filter and an activated carbon filter. An optional UV-C light and three fan speeds give extra control.
Coverage runs from a small bedroom to larger spaces, with a quiet sleep mode for nights. Replacement parts are specific: Filter B and matching bulbs. Noise level and power use are not given, so confirm those if sleep is the main use.
Who it's for
Households dealing with pet dander, dust, pollen or smoke in a bedroom or office will use the filter pair and sleep mode. Those who want a decibel rating, or a portable desktop unit, should look at models that publish them.
Pros and cons
- HEPA and carbon filtration
- Three speeds with sleep mode
- Optional UV-C light
- Tower shape fits corners
- Noise and power draw not listed
- Needs Filter B for replacement
- UV-C bulb adds a replacement part
Performance notes
Air passes through the HEPA layer, which traps fine particles, and the carbon layer, which reduces scents. Speed sets how fast the room volume is cycled, which is why the listing quotes different times for a small bedroom and a large space. UV-C is optional.
Specifications
| Brand | GermGuardian |
|---|---|
| Model | AC4825 |
| Dimensions & fit | |
| Particle Retention Size | 99.97% of allergens down to 0.1 micron |
| Height | 22 inch tower |
| Capacity & performance | |
| Number of speeds | 3, including sleep mode |
| Construction & materials | |
| Color | Gray |
| Other details | |
| Floor Area | 153 sq ft every 12.5 minutes; 743 sq ft every hourhigher than 57% of 22 hepa air purifiers |
| Filter Type | HEPA with activated carbon filter |
| Special Features | Optional UV-C light |
| Specification Met | CARB, ETL, zero ozone |
| Replacement filter | GermGuardian HEPA Filter B |
Closest rivals on specs
AromaRoom AP103-A Air Purifier- Floor Area 743 vs 646 sq ft (+15%)
BLUEAIR Blue Pure 511i Max Smart Air Purifier- Floor Area 743 vs 526 sq ft (+41%)
Whirlpool Whispure WPPRO2000P True HEPA Air Purifier- Floor Area 743 vs 508 sq ft (+46%)
Frequently asked questions
How do I replace the filter on the GermGuardian AC4825E?
The listing says to replace with GermGuardian HEPA Filters B and matching bulbs. It gives no installation steps, so follow the manual.
Does the GermGuardian AC4825E include a UV-C light?
The seller copy describes the UV-C light as optional and says it helps reduce airborne particles.
How big a room does the GermGuardian AC4825E cover?
The listing says a small bedroom of 153 sq ft is circulated every 12.5 minutes, and spaces up to 743 sq ft every hour.
Is the GermGuardian AC4825E an ozone generator?
No. The seller copy says it is CARB and ETL certified and describes it as zero ozone.