Guardian Technologies Filter B (FLT4825) Replacement Filter
Genuine Guardian Technologies Filter B (FLT4825) replacement filter cartridge. Restores full CADR airflow and 99.97% True HEPA particle capture for the GermGuardian AC4825 True HEPA 3-in-1.
3-Year True Cost of Ownership Model
High-efficiency particulate filtration designed to capture 99.97% of airborne particles down to 0.3 microns.
Continuous elastomeric gasket prevents untreated air bypass around filter edges inside host purifier.
Pelletized or honeycomb activated carbon substrate neutralizes volatile organic compounds and cooking odors.
Scheduled replacement interval of Every 6–8 Months balances clean air delivery and annual ownership cost.
- Exact OEM seal prevents unfiltered bypass
- High-grade H13 True HEPA media
- Activated carbon pellet layer neutralizes odors
- Restores peak airflow and CADR
- Slightly higher cost than generic third-party replacements
- Must be replaced every 6 to 12 months
Verified Engineering Specifications
| Nominal Dimensions | OEM Cartridge | Actual Dimensions | Exact Machine Specification |
|---|---|---|---|
| Filter Depth | Cartridge | Media Construction | H13 True HEPA & Granular Carbon |
| Initial Resistance | Factory Balanced OEM Resistance | Airflow Capacity | 153 |
| Replacement Filter Cost | $34.99 | Replacement Interval | Every 6–8 Months |
| Annual Consumable Cost | $52.48/yr | Compatible Equipment | Guardian Technologies AC4825 Purifier |
Our Take on the Guardian Technologies Filter B (FLT4825) Replacement Filter
The recommended replacement cartridge ensuring leak-free gasket seals and factory odor absorption for your AC4825.
Filtration Performance Note
Certified 99.97% removal of airborne particles down to 0.3 microns under IEST-RP-CC001.6 standards.
Installation, Airflow Direction & Maintenance Protocol
Power off purifier. Invert machine, twist open base cover, remove old filter, install new cartridge, and reset filter indicator button.
Common Questions About the Guardian Technologies Filter B (FLT4825) Replacement Filter
Will this filter fit the GermGuardian AC4825 True HEPA 3-in-1?
Yes, this is the official factory replacement specifically designed for the GermGuardian AC4825 True HEPA 3-in-1.
Can this replacement filter be washed with water?
No. Washing True HEPA or carbon filters damages the electrostatic matrix. Only vacuum the outer pre-filter.
How do I reset the filter change light after installing?
Press and hold the filter indicator button on the top control panel for 3 seconds until it beeps.
Purifier Hardware & Cartridge Options
GermGuardian AC4825 True HEPA 3-in-1
When to choose: Official host purifier tower engineered for this Filter B cartridge panel.
Guardian Technologies Multi-Pack Filter B
When to choose: Value multipack bundle providing extended continuous filtration supplies.