---
product_id: 557463062
title: "Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr"
brand: "aprilaire"
price: "$900.42"
currency: USD
in_stock: true
reviews_count: 5
category: "Aprilaire"
url: https://www.desertcart.us/products/557463062-aprilaire-400-humidifier-24v-drainless-whole-house-humidifier-w-auto
store_origin: US
region: United States of America
---

# 24V auto digital control Covers up to 5000 sq ft 17 gallons/day max output Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr

**Brand:** aprilaire
**Price:** $900.42
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your air, elevate your lifestyle—because dry is so last season.

## Quick Answers

- **What is this?** Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr by aprilaire
- **How much does it cost?** $900.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/557463062-aprilaire-400-humidifier-24v-drainless-whole-house-humidifier-w-auto)

## Best For

- aprilaire enthusiasts

## Why This Product

- Trusted aprilaire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Made in the USA:** Crafted by the original innovators of whole-home humidification—trusted quality and reliability.
- • **Drainless Design:** Forget messy maintenance with a drainless system that keeps your home clean and comfortable.
- • **Smart Auto Control:** 24V digital touch control adapts humidity levels automatically for optimal air quality.
- • **Whole-Home Hydration:** Effortlessly humidifies up to 5000 sq ft—perfect for your entire living space.
- • **Water-Wise Technology:** Unique evaporative process ensures 100% water efficiency—no waste, just pure comfort.

## Overview

The Aprilaire 400 is a powerful, drainless whole-house humidifier designed to cover up to 5000 square feet with a maximum output of 17 gallons per day. Featuring a 24V automatic digital control, it uses an innovative evaporative process that conserves water by evaporating 100% of the water supplied. Made in the USA by the pioneers of whole-home humidification, this unit ensures consistent, efficient humidity control to protect your skin, wood floors, and overall indoor air quality.

## Description

Product Information:About the Aprilaire 400 24V WholeHouse Drainless Humidifier with Automatic Digital ControlAre you tired of dry skin, splitting or cracking on your hard wood floors or trouble breat

Review: Works great
Review: Very effective

## Features

- BUY WITH CONFIDENCE This humidifier was designed and manufactured in the USA by AprilAire – the inventor of the whole home evaporative humidifier and the leader in indoor air quality solutions
- FULL COVERAGE up to 5000 square feet in tightly built homes with a capacity of 17 gallons per day
- CONSERVES WATER using a unique process that evaporates 100% of the water flowing into the water panel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004PDDZRS |
| Brand | Aprilaire |
| Brand Name | Aprilaire |
| Capacity | 17 G/day |
| Color | White |
| Colour | White |
| Control Method | Touch |
| Customer Reviews | 4.4 out of 5 stars 294 Reviews |
| Filter Type | Wick |
| Floor Area | 4000 Square Feet |
| Floor area | 4000 Square Feet |
| Global Trade Identification Number | 00686720004001, 00686720104008 |
| Item Weight | 8.8 Pounds |
| Manufacturer | Aprilaire |
| Material | Wood |
| Model Name | 400 |
| Model Number | 400 |
| Operation Mode | Auto |
| Operation mode | Auto |
| Other Special Features of the Product | evaporative |
| Power Source | Corded Electric |
| Room Type | Living Room |
| Runtime | 37 hours |
| Special features | evaporative |
| UPC | 686720104008 |
| Voltage | 24 Volts (AC) |

## Product Details

- **Brand:** Aprilaire
- **Capacity:** 17 G/day
- **Colour:** White
- **Floor area:** 4000 Square Feet
- **Special features:** evaporative

## Images

![Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr - Image 1](https://m.media-amazon.com/images/I/713QElbV4GL.jpg)
![Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr - Image 2](https://m.media-amazon.com/images/I/51sE1GWJhML.jpg)
![Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr - Image 3](https://m.media-amazon.com/images/I/71jYVlDaKFL.jpg)
![Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr - Image 4](https://m.media-amazon.com/images/I/71Z5g9di6sL.jpg)
![Aprilaire 400 Humidifier, 24V Drainless Whole House Humidifier w/Auto Digital Control .7 Gallons/hr - Image 5](https://m.media-amazon.com/images/I/71syfOrti0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by B***N on 8 February 2014*



### ⭐⭐⭐⭐⭐ Very effective
*by A***3 on 15 December 2019*



### ⭐⭐⭐⭐ Excellent product with "OK" instructions
*by A***N on 21 January 2026*



## Frequently Bought Together

- AprilAire 400 Whole-House Humidifier, Automatic Water Saver Furnace Humidifier, Large Capacity Whole-House Humidifier for Homes up to 5,000 Sq. Ft., White
- AprilAire 5844 Humidifier Installation Kit for AprilAire Whole Home Humidifiers with Automatic Control, Compatible with AprilAire Humidifier Models: 400, 500, 600 Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-17*