How we research dehumidifiers

Short version: we read the spec sheets so you do not have to, and we show our sources.

Where our numbers come from

  1. Maker documents. Spec sheets, manuals and product pages for capacity, coverage, pump, tank and operating temperature.
  2. ENERGY STAR records. Certified capacity and integrated energy factor (IEF, liters of water per kWh).
  3. Independent measurements. Where a lab such as RTINGS publishes measured noise or efficiency, we quote it alongside the maker figure.
  4. Retailer listings only when a maker document is not available, and we say so.

How we choose picks

We match capacity to the job using the ENERGY STAR sizing chart, then favor models with a built-in pump or gravity drain for spaces that need round-the-clock drying, published efficiency data, low-temperature ratings for basements and crawl spaces, and a clear warranty.

What we will not do

  • Claim hands-on testing we did not do.
  • Invent star ratings, review counts or prices.
  • Hide a spec conflict. If two sources disagree, both appear on the page.

Dates

Each product card shows when its specs were last checked. This site's content was last reviewed on November 13, 2026. Models are renamed and discontinued often, so always confirm the model number on the seller's page.

Spotted an error? Email hello@dehumidifiersguide.com.