| ENERGY STAR Partner |
| Air-King, Ltd. |
Air-King, Ltd. |
| Brand Name |
| Air King |
Air King |
| Model Name |
| N/A |
Air King |
| Model Number |
| AK90 |
WM50 |
| Type |
| Bathroom/Utility Room |
Bathroom/Utility Room |
| Number of Speeds |
| 1 |
1 |
| Duct Size |
| 4 inch diameter |
4.00 inch diameter |
| Sound Level (sones) |
| 2 |
0.6 |
| Bathroom and Utility Room Airflow at 0.25 in. w.g. |
| 76 |
37.4 |
| Shipped with ENERGY STAR Lamp(s) |
| No |
No |
| Lighting |
| No |
No |
| Airflow 1 (cfm) |
| 90 |
50 |
| Efficacy 1 (cfm/Watt) |
| 4 |
2.9 |
| Date Available On Market |
| October 1, 2015 |
December 10, 2021 |
| Date Qualified |
| October 1, 2015 |
December 10, 2021 |
| Markets |
| United States, Canada |
United States, Canada |
| CB Model Identifier |
| ES_30227_AK90_10012015000000_1004046 |
ES_30227_WM50_12102021000000_1006922 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Product Category |
| Ventilating Fans |
Ventilating Fans |
| Date Certified |
| October 1, 2015 |
December 10, 2021 |
