---
product_id: 1149294
title: "AprilAire 400 Whole-House Humidifier + Automatic Control"
brand: "aprilaire"
price: "HK$5026"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/1149294-aprilaire-400-whole-house-humidifier-automatic-control
store_origin: HK
region: Hong Kong
---

# Covers 5,000 sq. ft. 17 gallons/day capacity Dual sensors for optimal humidity AprilAire 400 Whole-House Humidifier + Automatic Control

**Brand:** aprilaire
**Price:** HK$5026
**Availability:** ✅ In Stock

## Summary

> Breathe Easy, Live Better! 🌬️

## Quick Answers

- **What is this?** AprilAire 400 Whole-House Humidifier + Automatic Control by aprilaire
- **How much does it cost?** HK$5026 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/1149294-aprilaire-400-whole-house-humidifier-automatic-control)

## 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

- • **Healthier Living:** Maintain optimal humidity levels (40%-60%) to reduce respiratory issues and allergens.
- • **Ultimate Coverage:** Transform your entire home into a comfort zone with coverage for up to 5,000 sq. ft.
- • **Preserve Your Home:** Protect your belongings from damage caused by fluctuating humidity levels.
- • **Set It and Forget It:** Enjoy automatic humidity control with dual sensors that adjust to your environment 24/7.
- • **Eco-Friendly Efficiency:** Conserve water with a unique evaporation process that maximizes every drop.

## Overview

The Aprilaire 400 Whole-House Humidifier is a top-tier solution for maintaining optimal indoor humidity levels in homes up to 5,000 sq. ft. With a capacity of 17 gallons per day and automatic dual sensors, it ensures your home remains comfortable and healthy while conserving water efficiently.

## Description

AprilAire 400 Whole-House Humidifier, Automatic Water Saver Furnace Humidifier, Large Capacity Whole-House Humidifier for Homes up to 5,000 Sq. Ft., White

## Features

- BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by AprilAire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
- FULL COVERAGE up to 5,000 square feet in tightly built homes with a capacity of 17 gallons per day
- AUTOMATIC HUMIDIFIER with dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity to deliver optimum humidity 24/7 throughout the home – simply set it and forget it
- CONSERVES WATER using a unique process that evaporates 100% of the water flowing into the water panel
- HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% – 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions

## Product Details

- **Brand:** Aprilaire
- **Special Feature:** Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Service Filter Indicator
- **Color:** Gray
- **Floor Area:** 4000 Square Feet
- **Operation Mode:** Evaporative

## Images

![AprilAire 400 Whole-House Humidifier + Automatic Control - Image 1](https://m.media-amazon.com/images/I/713QElbV4GL.jpg)

## Available Options

This product comes in different **Style** options.

## 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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**Shop now:** [https://www.desertcart.hk/products/1149294-aprilaire-400-whole-house-humidifier-automatic-control](https://www.desertcart.hk/products/1149294-aprilaire-400-whole-house-humidifier-automatic-control)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-26*