| Product Program Category |
| Room Air Cleaners and Purifiers |
N/A |
| Type |
| Air Cleaners |
Air Cleaners |
| Brand Name |
| GermGuardian |
GermGuardian |
| Model Name |
| AC4250 |
AC 4820 |
| Model Number |
| AC4250 |
AC 4820 |
| UPC |
| 817,624,011,882 |
N/A |
| CB Model Identifier |
| ES_1059680_AC4250_11292021114429_7303583 |
ES_1059680_AC 4820_02052019152604_7279779 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| ENERGY STAR Partner |
| Guardian Technologies, LLC |
Guardian Technologies, LLC |
| Product Category |
| Room Air Cleaners and Purifiers |
Room Air Cleaners and Purifiers |
| Additional Model Information |
| ,AC4250****, |
N/A |
| Date Available On Market |
| June 21, 2021 |
March 1, 2019 |
| Date Certified |
| December 1, 2021 |
February 6, 2019 |
| Markets |
| United States, Canada |
United States, Canada |
| Room Size (sq.ft.) |
| 102 sq. ft. / 9.48 sq. m. |
153 sq. ft. / 14.21 sq. m. |
| Dust-Free Clean Air Delivery Rate (cfm) |
| 76 |
112 |
| Smoke-Free Clean Air Delivery Rate (cfm) |
| 66 |
99 |
| Pollen-Free Clean Air Delivery Rate (cfm) |
| 76 |
131 |
| Dust-Free Clean Air Delivery Rate per Watt |
| 2 |
2.68 |
| Smoke-Free Clean Air Delivery Rate per Watt |
| 2 |
2.4 |
| Pollen-Free Clean Air Delivery Rate per Watt |
| 2 |
3.096926714 |
| Partial On Mode Power (Watts) |
| 0 |
0 |
| Annual Energy Use (kWh/yr) |
| 184 |
240.9 |
| Technology Types |
| Fan and Filter |
Fan and Filter |
| Ozone Emissions (ppb) |
| 1 |
0 |
| Filter #1 Type |
| HEPA |
HEPA |
| Network Capability |
| No |
No |
| Connected Functions |
| No |
No |
| Date Qualified |
| December 1, 2021 |
February 6, 2019 |
