---
product_id: 340838009
title: "SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter"
brand: "smartdevil"
price: "€ 46.03"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/340838009-smartdevilcool-mist-humidifier-500ml-night-light-whisper-quiet-usb-auto
store_origin: IE
region: Ireland
---

# 500ml large capacity Ultra-quiet <30dB operation USB powered with auto-off SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter

**Brand:** smartdevil
**Price:** € 46.03
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your air game with silent, stylish hydration

## Quick Answers

- **What is this?** SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter by smartdevil
- **How much does it cost?** € 46.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/340838009-smartdevilcool-mist-humidifier-500ml-night-light-whisper-quiet-usb-auto)

## Best For

- smartdevil enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Mist:** Up to 18 hours of continuous or intermittent cool mist hydration
- • **Smart Auto-Off Safety:** Automatically shuts off when water runs out for worry-free use
- • **Whisper-Quiet Comfort:** Operate under 30dB for peaceful sleep or focused work
- • **Dual Night Light Modes:** Choose between constant or breathing light to set your mood
- • **Sleek & Durable Design:** Premium ABS build in stylish snow-navy blue, perfect for any modern space

## Overview

The SmartDevil Cool Mist Humidifier features a 500ml tank with ultrasonic vaporization delivering fine mist for up to 18 hours. Operating quietly below 30dB, it includes dual night light modes and smart auto-off safety. USB powered and crafted from durable ABS, it’s designed for bedrooms, offices, and nurseries, blending functionality with sleek aesthetics.

## Description

SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter

## Features

- 【Whisper-Quiet & Night Light Function】 Silence operation below 30dB allows you to sleep easily in a comfortable and quiet environment. The portable mini humidifier for baby has two modes of night light function, constant light mode & breathing light mode(Long press the button to control).
- 【Large Capacity & Large Spray】 The liquid water is atomized into micron-sized water particles by ultrasonic vibration. The air humidifier diffuser with tank capacity is 500ml, the fine spray are used to increase the air humidity. It is a good companion for air-conditioned rooms.
- 【Waterless Auto-Off & Powered by USB】 The vaporizer humidifier will automatically shut off when water runs out. This USB humidifier is powered by USB cable(interface of computer, laptop, adapter, power bank). No AC Adapter in box, one USB cable is included.
- 【Two Spray Modes】 The cool-mist humidifiers contains 2 Spray Modes: Continuous Spray & Intermittent Spray. First single press mist button to start the Continuous Mist Mode; Second time press mist button to switch to Intermittent Mode. The duration of the spray can last up to 12 hours, the Intermittent spray can last up to 18 hours.
- 【Quality Materials & Warm Gifts】 SmartDevil Desktop Humidifier is made from the finest durable ABS material to provide long-lasting usability. It is designed to perfectly match every occasion. A great gift for men or women on important days such as birthdays, holidays and housewarming.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SMARTDEVIL |
| Colour | Snow-navy Blue |
| Product Dimensions | 9.5 x 9.5 x 12.9 cm; 236 g |
| Voltage | 5 Volts (DC) |
| Auto Shutoff | Yes |
| Special Features | Night Light Function, Automatic power failure without water |
| Item Weight | 236 g |

## Product Details

- **Brand:** SMARTDEVIL
- **Special feature:** Night Light Function, Automatic power failure without water
- **Colour:** Snow-navy Blue
- **Filter type:** HEPA
- **Floor area:** 100 cc/min

## Images

![SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter - Image 1](https://m.media-amazon.com/images/I/61F5QIaZQsS.jpg)
![SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter - Image 2](https://m.media-amazon.com/images/I/61RqhsWANPS.jpg)
![SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter - Image 3](https://m.media-amazon.com/images/I/71EZEkrSQML.jpg)
![SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter - Image 4](https://m.media-amazon.com/images/I/710qh-caX2S.jpg)
![SMARTDEVILCool Mist Humidifier - 500ml, Night Light, Whisper Quiet USB, Auto-Off, for Bedroom, Baby, Office, Plants - 2 Filter - Image 5](https://m.media-amazon.com/images/I/71HdR095hFS.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: I am looking for an easy to use cool Mist Humidifier for my prayer plant would this be good for it?**
A: Potentially

**Q: Micro USB cable**
A: Good to use with any device which requires micro usb

**Q: Why is Amazon promoting this Chinese product when loads of reviews say it doesn't work and breaks after a few days ?**
A: I've had mine for almost 3 months and it works perfectly also don't see why you felt the need to mention it was a Chinese product.

**Q: What size filter sticks would i need to buy to fit the device?**
A: Dear friend, this navy humidifier is suitable for filters of this size: length 10.1 cm / 3.98 in, diameter 0.8 cm / 0.31 in.
We have filters available in packs of ten: www.amazon.co.uk/dp/B08HMMNP25/ Thank you!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Suitable for bedside or desk
*by L***E on 22 February 2025*

Easy to set up and well made. Good size for beside the bed or beside you in the lounge. Cannot use essential oils with this one. Make sure you buy 5.3” replacement filters. The 20 pack at £4.99 shown with this item is NOT the correct size. The 40 pack advertised is.

### ⭐⭐⭐⭐ Works well
*by S***H on 23 April 2025*

Good sturdy item, instructions could be a bit better as it doesn’t work unless full of water. Lasts for a few hours and does what it says, humidity level is low but does work

### ⭐⭐⭐⭐⭐ Great little humidifier!
*by H***N on 6 April 2025*

Fabulous little humidifier! I had an issue with it not producing vapour at first but then read the instructions. Short press of button for vapour and long press for night light. Hope this helps others as there are a few reviews to say theirs only lights up. Will definitely be purchasing another while it’s on sale.

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-28*