4L Cool Mist Humidifier With Top Fill Quiet Adjustable Mist

Discover lasting comfort and healthy hydration with the HM311 4L Cool Mist Humidifier. Engineered for performance and convenience, this ultrasonic humidifier is ideal for bedrooms, nurseries, indoor plant care, and everyday home use. With whisper-quiet operation, a large-capacity 4L tank, and customizable mist control, it keeps your environment refreshed and balanced for up to 32 hours per fill.

Designed with a modern aesthetic and practical top-fill structure, the HM311 is a 3-in-1 device that supports aromatherapy, improves sleep, and adds ambient lighting—all while relieving dry air discomfort quickly and efficiently.

Features Of 4L Cool Mist Humidifier 

Whisper-Quiet Humidification

Using ultrasonic atomization technology, the HM311 reduces sound levels to just 28dB, making it a perfect choice for bedrooms, baby rooms, or workspaces. No gurgling, humming, or fan noise to interrupt your sleep or focus.

4L Large Capacity with 32-Hour Runtime

The extra-large 4-liter tank offers up to 32 hours of continuous mist output, drastically reducing the need for refills. It supports full-day or overnight use in medium to large-sized rooms without interruption.

Dual Intake and Oversized Mist Outlet

Powered by dual air inlets and a 4-inch wide mist outlet, this humidifier produces a supersized mist cloud that is 3x more effective in reducing dry air quickly. It's ideal for fast comfort during dry seasons or in heavily air-conditioned spaces.

Finer Mist Distribution

The high-frequency ultrasonic process produces lighter, finer mist particles, allowing for even air distribution without surface dampening. It creates a consistent humidity level throughout your space while protecting walls, furniture, and floors from excess moisture.

Top-Fill, Modular Design

No flipping or spilling—just lift the lid and pour. The top-fill design makes refilling and cleaning stress-free. Its modular components are easy to detach and clean, ensuring hygienic performance over time.

3-in-1 Functionality

This is not just a humidifier. It also serves as a light ambiance enhancer and an aromatherapy companion (essential oils not included). Add essential oils to enjoy a refreshing atmosphere while soothing your mood.

Adjustable Mist Levels and Nozzle

With three mist levels and a 30° tiltable nozzle, you have complete control over how much moisture is released and where it's directed. Easily adapt to your room size, seasonal climate, or personal comfort needs.

Auto Shut-Off for Safety

An intelligent shut-off system turns off the humidifier automatically when water runs low, helping avoid overheating or damage. This makes it safe to use in nurseries or when left unattended overnight.

Sleek and Portable Build

Designed to be functional and beautiful, the humidifier has a clean rectangular prism shape that fits neatly into any décor. Lightweight and compact, it's easy to move between rooms.

Specification Of 4L Cool Mist Humidifier 

• 4L Tank Capacity
  Holds enough water to deliver up to 32 hours of continuous mist. Reduces refill frequency and supports all-day comfort.
• Quiet Ultrasonic Mist Output
  Runs at just 28dB for a peaceful environment. Suitable for nurseries, bedrooms, and work areas.
• Dual Intake and Wide Mist Outlet
  Generates supersized mist for fast dry-air relief. Distributes moisture quickly across large areas.
• High-Frequency Atomization
  Creates fine mist particles that float evenly without leaving wet surfaces. Ideal for sensitive electronics and wooden furniture.
• Top Fill Design
  Fill without flipping or disassembling. Large opening allows easy water pouring and fast cleaning access.
• 3 Mistake Levels
  Choose low, medium, or high based on room size or preference. Customizable to personal needs or weather changes.
• Tiltable Nozzle
  Adjust the mist direction with the 30° rotating outlet. Control where humidity flows for personalized comfort.
• Aroma Diffuser Function
  Compatible with essential oils (not included). Enjoy scented mist for relaxation and mental clarity.
• Ambient Light Option
  Subtle lighting adds mood enhancement to your environment. Can be used with or without mist for flexible use.
• Automatic Shut-Off
  Turns off when tank is empty to prevent overheating. Provides added safety for overnight or unsupervised use.

Conclusion

The HM311 4L Cool Mist Humidifier is a thoughtfully designed solution for creating a fresher, healthier indoor atmosphere. With its powerful mist performance, silent operation, and multi-functional use, it serves homes, offices, nurseries, and plant lovers alike.

From its oversized mist outlet to its top-fill convenience and ambiance-enhancing features, every detail is crafted to improve air quality without hassle. Whether you're battling dry air, caring for indoor plants, or just enhancing your relaxation routine, this humidifier brings long-lasting hydration with effortless simplicity.