How we match
ClariSelect mathWe list the humidifiers whose makers rate them for at least your area, smallest first. A bigger tank means fewer refills; run time per tank depends on the setting you use.
LimitsRatings assume a typical ceiling and insulation; drafty or very cold rooms need more output. Clean any humidifier weekly.
Questions
What size humidifier for a bedroom?
Most bedrooms are 150 to 300 sq ft; a unit rated for that with a tank that lasts the night is the right size.
What humidity should I aim for?
About 40 to 50 percent relative humidity in winter.