---
product_id: 509543883
title: "Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black)"
brand: "rosekm"
price: "A$119"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/509543883-humidifiers-for-bedroom-4-0l-humidifiers-for-home-large-room
store_origin: AU
region: Australia
---

# 50-hour Runtime 4.0L Capacity Ultra-Quiet Operation Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black)

**Brand:** rosekm
**Price:** A$119
**Availability:** ✅ In Stock

## Summary

> 💡 Elevate Your Air Quality, Effortlessly!

## Quick Answers

- **What is this?** Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) by rosekm
- **How much does it cost?** A$119 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/509543883-humidifiers-for-bedroom-4-0l-humidifiers-for-home-large-room)

## Best For

- rosekm enthusiasts

## Why This Product

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

## Key Features

- • **Set It and Forget It:** Convenient timer settings for hassle-free humidity control.
- • **Whisper-Quiet Technology:** Enjoy peaceful nights with less than 30 dB operation.
- • **Breathe Easy, Sleep Better:** Experience up to 50 hours of continuous mist without constant refills.
- • **Smart Comfort at Your Fingertips:** Auto Mode adjusts humidity levels for optimal comfort.
- • **Powerful Coverage for Large Spaces:** Effortlessly humidifies rooms up to 430 ft² in minutes.

## Overview

This 4.0L humidifier is designed for large rooms, offering up to 50 hours of continuous operation with smart auto humidity control. Its ultrasonic technology ensures a whisper-quiet experience, making it perfect for bedrooms and nurseries. With a powerful output covering up to 430 ft², it features a user-friendly digital display and filter-free maintenance.

## Description

Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black)

## Features

- CARE THROUGTHOUT THE DAY: With 4.0L(1gal) Capacity, it can continue up to 50 hours of humidification on low mist setting. No need to worry about frequent water refilling.
- SMART AUTO MODE: With the smart humidity sensor, Auto Mode adjusts mist levels to keep your room feeling comfortable. You can also set three levels of fixed mist output.
- FAST AND POWERFUL RELIEF: Easily cover the rooms up to 430 ft² (40 ㎡) with powerful output, helping you quick relief in minutes! Perfect for bedrooms and large rooms.
- PERFECT HUMIDIFIERS FOR BEDROOM: Ultrasonic technology to ensure our humidifier is lower than 30 dB when running, and the display will auto dim. No worry about distracting your sleep.
- ON/OFF TIMER SETTING: With up to 12 hour on and off settings, you can set your humidifier to turn on/off in as small as 1-hour intervals. If runs out of water, the humidifier will also auto shut-off.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Dimensions D x W x H | 6.89"D x 6.89"W x 11.61"H |
| Material Type | BPA-free ABS Plastic |
| Color | 4.0L Smart Humidifier |
| Room Type | Kids Room, Office, Bedroom, Nursery |
| Voltage | 110 Volts (AC) |
| Runtime | 50 hours |
| Power Source | Corded Electric |
| Control Method | Touch |
| Wattage | 17 watts |
| Capacity | 1.01 Gallons |
| Floor Area | 430 Square Feet |
| Operation Mode | automatic, ultrasonic |
| Special Features | Digital Display, Adjustable Humidity Control, Timer, Low Water Indicator, Auto Smart Mode |
| Filter Type | Filter-Free |

## Product Details

- **Brand:** Rosekm
- **Special Feature:** Digital Display, Adjustable Humidity Control, Timer, Low Water Indicator, Auto Mode
- **Color:** Black
- **Floor Area:** 430 Square Feet
- **Operation Mode:** automatic, ultrasonic

## Images

![Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) - Image 1](https://m.media-amazon.com/images/I/513TcX9KCPL.jpg)
![Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) - Image 2](https://m.media-amazon.com/images/I/71mQ6dYTEFL.jpg)
![Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) - Image 3](https://m.media-amazon.com/images/I/713IQ1cYhFL.jpg)
![Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) - Image 4](https://m.media-amazon.com/images/I/71yHoDmgYML.jpg)
![Humidifiers for Bedroom, 4.0L Humidifiers for Home Large Room, Cool Mist Humidfiers for Baby and Plant, Smart Auto Humidification, Timer, Filter Free(Black) - Image 5](https://m.media-amazon.com/images/I/71OJomz8LxL.jpg)

## Questions & Answers

**Q: I lost my instructions, how do or should i clean this? scrub it down with soap and water or do i use something else? any help from owners appreciated.**
A: Little dish soap rince very well

**Q: Is low setting for mist actually low? I had another that the low setting was not much different than high and too much mist.**
A: I love this little thing. The low setting is barely visible honestly. Biggest pro in my opinion is that it doesn't create any damp areas on the carpet in front of it

**Q: My machine is making a horrible high pitch buzzing sound when you turn it on. How can I fix this??**
A: Just some suggestions, in case you haven't tried them already.

1. Of course, ensure you have enough water in there.

2. Fill with a 50/50 water/vinegar mix and let sit for about a half hour. Then let it run for about 10 minutes. Drain and rinse well.

3. I have very hard water where I live. To prevent calcium build-up, I use filtered water (ex. Pur water pitcher). It removes a lot, not all, of the mineral and helps minimize the crust that can hinder humidifier function. 

4. Make sure you are careful when filling and cleaning so water does not get into the motor compartment. If it does, give it a good shake and let it dry for a day. And hope its ok.

**Q: Is it normal to have standing water in the base when you refil the water reservoir?**
A: We always standing water in the base of ours.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-10*