Apartment Humidity: 7 Renter Fixes for 40-50% RH
I moved into a fourth-floor Boston walk-up in late July last year, bought four $13 hygrometers on eBay to compare them, and discovered that humidity is one of the cheapest home-comfort problems to fix if you start with a meter. Tested 14 renter-safe methods over 11 weeks across an 1,800 sq ft pre-war floor plan; the 7 that worked, with the 3 that shouldn't have.