8 Best Whole House Humidifiers

Key Specs

• Dimensions: 22.5 x 12.5 x 17.5 inches
• Capacity: 6 gallons
• Weight: 14 pounds
• Auto Shutoff: Yes
• Square Footage Covered: 2,700

Unlike other options that require installation and plumbing knowledge, this low-cost whole house humidifier is designed to be placed on the floor and begins to work right away.

Plus, at just 14 pounds, it’s relatively easy to move around. Despite the low cost, this humidifier still offers an impressive amount of bells and whistles, including a check-filter indicator and an auto-shutoff feature that engages when your home reaches the desired humidity level.

A bright LED display makes it easy to set your preferred humidity level, and thanks to its 7-gallon water tank this model can run for up to 70 hours before needing a refill.

Key Specs

• Dimensions: 10.5 x 17 x 16 inches
• Weight: 15.5 pounds
• Capacity: 18 gallons
• Auto Shutoff: No
• Square Footage Covered: 4,200

This Aprilaire model mounts directly to your furnace, using a fan to pull heated air directly through the unit. It also has an impressive air flow capacity of 280 CFM (cubic feet per minute), and combined with the 18-gallon capacity, is suitable for homes up to 4,200 square feet in size.

The manual controller allows you to set your preferred humidity level, although this model does lack an automatic shutoff, so keep that in mind. This humidifier does require some experience to install, but if you’re up for it, a handy instructional video makes things a bit easier.