HoMedics humidifiers
HoMedics has 2 units here, from $100 to $160, across 2 types. The most capable is the HoMedics TotalComfort Deluxe at 0.5 gal/day, enough for 123 sq ft. 2 of the 2 cannot produce white dust.
Across the lineup, HoMedics's published room sizes average 4.4× what the output supports, so treat the square footage on the carton as a ceiling rather than a rating. How that is calculated.
HoMedics
HoMedics TotalComfort Deluxe
A tower with a 1.47-gallon tank, a demineralisation cartridge in the box, and a 426 sq ft claim - an oddly specific number that at least suggests somebody calculated rather than rounded up to 500. HoMedics now lists it as the Decor Series Large Humidifier, and its box gives the CMTF91 a 17-18 dBA noise figure, which with the cartridge makes it one of the quiet, dust-free units here. Seventy hours on the lowest setting is among the longest here, which as usual means the lowest setting moves very little water: about half a gallon a day. Where it earns its place is the combination of a demineralisation cartridge and a real humidistat at $100, which most rivals at this price do not offer.
123 sq ft supported · box says 426 sq ft
One 1.38-gallon top-fill tank, warm and cool mist, a demineralisation cartridge in the box, a humidistat and an eighty-five-hour low-setting claim - one of the longest numbers in this catalog, and the one that best illustrates why the number is nearly meaningless. Eighty-five hours from 1.38 gallons is 0.39 gallons a day, about a fifth of what the 521 sq ft printed alongside it would require. HoMedics also prints 21-23 dBA for it, which with the cartridge puts it among the quiet, dust-free units here, and adds an eight-hour auto-off timer.
96 sq ft supported · box says 521 sq ft