Aprilaire Drainless Bypass Humidifier
Experience enhanced whole-home comfort with the Aprilaire 400M Drainless Bypass Humidifier. This unit effectively combats dry air, alleviating symptoms like itchy skin and static electricity, while also protecting your home from moisture-related damage. Its drainless design and bypass operation ensure efficient, low-maintenance humidification. The included manual control provides simple management of your indoor humidity levels, contributing to a healthier and more comfortable living environment. Maintain optimal humidity for potential energy savings by allowing lower thermostat settings.
$280.99
Owner Satisfaction
4.5
/ 5
Category Rank
32
/ 486
#32 in Humidifiers
Price vs Category Average
+147%
Above average
Model
400
/ M
Who it's for
- High Water Efficiency
- Simplified Installation
- Eco-Friendly Operation
Who should skip it
- Increased Panel Replacement Frequency
- Potential for Mineral Buildup
- Higher Initial Cost
Key Specs
Model
400M
Control Type
Manual Dial
Refill Method
Top Fill
Mist Type
Cool Mist
Filter Type
Wick Filter
Power Source
AC Powered
Control Type
Manual (Automatic option available)
UPC
686720404009
Features
- Whole-home comfort and humidity control
- Relieves dry air symptoms like itchy skin
- Protects home from moisture damage
- Drainless design for easy maintenance
- Bypass operation for efficient humidification
- Manual control included
- Reduces static electricity
- Potential for energy savings
What customers say
Customers overwhelmingly praise the Aprilaire Drainless Bypass Humidifier for its robust, whole-house performance and water conservation. Users report immediate improvements in air quality, reduced static, and relief from dry skin and sinus issues. The drainless design is a major highlight, significantly boosting its perceived value and environmental appeal compared to water wasting models. While installation requires care, the unit offers effortless operation once set up, especially with a digital humidistat. Despite a higher initial cost, the superior, consistent humidification and minimal daily maintenance justify the investment. Overall, owners view this as a durable and essential upgrade for reliable home comfort.
Still have a question?
Ask Hayley anything about this product before you decide.