Humidifiers for Homes under 2,000 sq. ft. HD6000 HD7005 MA0800 MA0950 6 Gal. 7 Gal. 8 Gal. 9.5 Gal.   Humidifiers for Homes over 2,000 sq. ft.*   MA1200/MA1201 HD1205 HD1405 HD1406 HD1407 12 Gal.* 12 Gal. 14 Gal.* 14 Gal.* 14 Gal.* *ANSI/AHAM HU-1-1997, sec. 8.1