Is a New 50-Pint Dehumidifier the Same as an Old 70-Pint?
Close, but not exact. A current (2019-standard, 65°F) 50-pint dehumidifier is roughly equivalent to what would have been labeled a 60-pint machine under the old (pre-2019, 80°F) test — not a 70-pint one. A true old 70-pint machine is closer to today's 40-45 pint rating. The "new 50 = old 70" shorthand people repeat online captures the right direction (ratings dropped) but overstates the specific pair.
The actual numbers, side by side
| Old rating (pre-2019, 80°F) | New rating (2019+, 65°F) |
|---|---|
| 60 pt | 35 pt |
| 70 pt | 40-45 pt |
| (no direct old equivalent) | 50 pt ≈ old ~80-85 pt |
Read the full row-by-row table, sourcing, and whole-home figures at The Pint Rating Conversion Index.
Why the confusion happens
Retailers sometimes manually append "(2019 DOE test, previously ~70-pint)" to a product listing to help shoppers who remember the old number, but that annotation is an approximation for marketing purposes, not a precise engineering conversion. The actual reduction a specific model experiences depends on its coil design, fan speed, and refrigerant charge — the ~25-45% range in our index is the general, industry-recognized pattern, not a fixed formula you can apply to any one machine.
What to actually do when buying
Ignore what a unit "used to be called." Take the CURRENT 2019-standard pint number on today's spec sheet and match it to your room's square footage and dampness level using the AHAM sizing table in our conversion index, or read our basement sizing guide directly.
This page is a specification reference, not a health or mold-safety determination for your specific space.
Frequently Asked Questions
Close, but not exact. Per ENERGY STAR's published conversion reference, a machine rated '70-pint' under the pre-2019 test (80°F/60% RH) is roughly equivalent to a '40-45 pint' machine under the current 2019 test (65°F/60% RH). A current '50-pint' rating is closer to what used to be labeled '60-pint' before 2019. So a new 50-pint unit has somewhat MORE real capacity than an old 70-pint unit did, not less — but the two numbers were never meant to be read side-by-side without a conversion.
Because retailers and forum posts often shorthand the situation as 'the new 50-pint is the old 70-pint' to explain the general direction of the change (ratings went down), without citing the actual conversion pairs. That shorthand is roughly the right idea but not a precise equivalence — see the full Pint Rating Conversion Index for the row-by-row figures.
Ignore the label year and match the CURRENT 2019-standard number to your square footage and dampness level using the AHAM chart, not to whatever an old unit used to be called. If a listing doesn't specify which test standard produced its pint number, treat that as a red flag and look for the spec sheet.
No. An old unit's hardware and real-world moisture removal haven't changed — only the labeling convention for NEW units changed in 2019. Your old unit was never re-tested or re-rated; it simply carries a rating from a different, warmer test standard than anything sold today.