Dehumidifiers Key Efficiency Criteria
Qualified models meet all ENERGY STAR requirements as listed in the Version 6.0 ENERGY STAR Program Requirements for Dehumidifiers that are effective as of October 1, 2025.
| Dehumidifier | A product, other than a portable air conditioner, room air conditioner, or packaged terminal air conditioner, that is a self-contained, electrically operated, and mechanically encased assembly consisting of: (a) a refrigerated surface (evaporator) that condenses moisture from the atmosphere; (b) a refrigerating system, including an electric motor; (c) an air-circulating fan; and (d) means for collecting or disposing of the condensate. |
|---|---|
| Portable Dehumidifier | A dehumidifier that, in accordance with any manufacturer instructions available to a consumer, operates within the dehumidified space without the attachment of additional ducting, although means may be provided for optional duct attachment. |
| Whole-Home Dehumidifier | A dehumidifier that, in accordance with any manufacturer instructions available to a consumer, operates with ducting to deliver return process air to its inlet and to supply dehumidified process air from its outlet to one or more locations in the dehumidified space. |
| Equipment | Specification | |
|---|---|---|
| Product Capacity (pints/day) | Integrated Energy Factor Under Test Conditions1 (L/kWh) | |
| Portable Dehumidifiers | ≤ 25.00 | ≥ 1.70 |
| 25.01 to 50 | ≥ 2.01 | |
| ≥ 50 | ≥ 3.30 | |
| Equipment | Specification | |
|---|---|---|
| Product Case Volume (ft3) | Integrated Energy Factor Under Test Conditions1 (L/kWh) | |
| Whole-Home Dehumidifiers | ≤ 8.0 | ≥ 2.22 |
| > 8.0 | ≥ 3.81 | |
Glossary
Integrated Energy Factor (IEF): A measure of the efficiency of the unit expressed in liters per kilowatt-hour, representing the ratio between the capacity and the total energy consumed by the unit in dehumidification mode and standby and/or off mode(s), adjusted for the representative number of hours per year spent in each mode.1
Product Capacity: A measure of the ability of a dehumidifier to remove moisture from its surrounding atmosphere, measured in pints collected per 24 hours of operation under specified ambient conditions.1
Product Case Volume: For whole-home dehumidifiers, this is a measure of the rectangular volume that the product case occupies, exclusive of any duct attachment collars or other external components.1
[1] Definitions of product types and test conditions are based on 10 CFR Part 430, Subpart B, Appendix X1