Why the numbers differ

Figures from DOE data as of 2026-11-03.

• The 2019 dehumidifier testTested at 65°F, not 80°F. 562 portable units certified, median 35 pints/day. Sizing, running cost, 35 vs 50 pints.
• SACC vs ASHRAE BTUPortable ACs: DOE's figure counts the hot air the unit lets in. Median SACC 8,000 BTU/h single hose, 10,000 dual hose.
• CADR and room sizeDOE's room size is smoke CADR times 1.55. Median certified smoke CADR 140 cfm, about 217 sq ft.
• Certified capacity report, 2026The study: distributions, brands per unit, efficiency by group, method and how to cite it.