KZF 4L Top Fill Humidifiers ZG-521
Rating
Product Overview
The KZF 4L Top Fill Humidifier is designed for bedrooms and large rooms, featuring a 4-liter tank that provides up to 15 hours of continuous mist. It includes a built-in humidity display, manual control, and an 8-hour timer for customized comfort. The top-fill design allows for easy refilling and cleaning, and the unit operates quietly in sleep mode. It also has an essential oil tray for aromatherapy and an auto shut-off function for safety. With three mist modes, it's suitable for various needs.
Product Specifications
Size & Weight
Features
Features a water tank made with antibacterial materials to suppress the growth of bacteria. This helps keep the water clean and reduces the risk of releasing bacteria into the air along with the mist. Provides a more hygienic humidifying experience, especially important for families with children or those sensitive to allergens.
This humidifier does not explicitly state that it has an antibacterial tank function. Without this feature, users should be diligent in cleaning the tank regularly to prevent bacteria and mold growth, ensuring a hygienic operation.
Includes a dedicated compartment or tray for adding essential oils. Allows you to enjoy aromatherapy while humidifying the air. Create a relaxing or invigorating atmosphere in your home by adding your favorite scents.
The inclusion of an essential oil tray allows users to add their favorite scents for aromatherapy. This feature enhances the ambiance of the room, creating a relaxing or invigorating environment while humidifying the air. It's a convenient way to combine aromatherapy with humidity control.
Incorporates a soft, ambient light that can be used as a night light. Provides gentle illumination in the room, making it suitable for bedrooms, nurseries, or as a calming light source. Enhances the ambiance and provides added convenience.
This humidifier does not have a dedicated night light function. While it may not provide ambient lighting, its primary function is to humidify the air, which it does effectively with its quiet operation and adjustable mist settings.
Automatically turns off the humidifier when the water tank is empty or when it's tipped over. This safety feature prevents damage to the unit and ensures peace of mind, especially when used overnight or unattended.
The automatic shut-off function ensures safety by turning off the humidifier when the water tank is empty. This prevents damage to the unit and provides peace of mind, especially when used overnight or unattended. It's a crucial feature for worry-free operation.
Offers multiple mist output settings, allowing you to customize the humidity level according to your preferences and the size of the room. Adjust the mist intensity for optimal comfort, whether it's a small bedroom or a larger living area.
Offering three mist modes (low, medium, high) allows users to customize the humidity level according to their preferences and the room size. This flexibility ensures optimal comfort, whether it's a small bedroom or a larger living area, providing tailored humidification.
Comes with a remote control, allowing you to adjust settings from across the room. Convenient for controlling the humidifier without having to get up, especially useful for those with mobility issues or for adjusting settings from bed.
This humidifier does not come with a remote control. While this may be less convenient for some users, the unit's touch control panel is easily accessible for adjusting settings. The absence of a remote does not significantly detract from its overall functionality.
SHOPSTAFF Rating Score
The KZF 4L Top Fill Humidifier is a budget-friendly option with a large tank and essential features. It offers decent performance for its price range, suitable for bedrooms and small living rooms. However, durability might be a concern due to the brand's relatively unknown status.
Brand & Manufacturer Details
Key Highlights
- Large 4L capacity
- Quiet operation
- Essential oil tray
- Affordable price
Considerations
- Clean regularly to prevent mold
- Handle with care due to lightweight build
- Monitor humidity levels to avoid over-humidification
Recommended For
- Individuals with dry skin or allergies
- Those needing a humidifier for bedrooms
- Users looking for an affordable option
Not Recommended For
- Those needing advanced humidity control
- Users requiring a very durable humidifier
- none in particular
Suitable For
- Bedroom
- Kids Room
- Living Room
- Office
- Yoga Room
Not Suitable For
- Industrial environments
- none in particular
Frequently Asked Questions (FAQ)
Q.How long can this humidifier run continuously?
Q.Is this humidifier suitable for a bedroom?
Q.Can I adjust the humidity level with this humidifier?
Q.How easy is it to refill and clean the humidifier?
Q.Does this humidifier have a timer function?
Q.Can I use essential oils with this humidifier?
Q.Is the humidifier safe to use?
Q.What if I have issues with the humidifier?
Q.Is the product quality reliable?
Q.Is the humidifier quiet?
SHOPSTAFF Rating Ranking
Dreo
Smart Humidifiers for Bedroom, 6L Top Fill Supersized Cool Mist Humidifier for Large Room, 60 Hour Runtime, Quiet Ultrasonic Humidifiers for Plants, Baby, Indoor, Home, Night Light, Black HM524S DR-HHM004S
$62(incl. tax)Amazon price as of 2025-09-04
Dreo Smart Humidifier: 6L, top-fill, cool mist, 60-hour runtime, quiet ultrasonic operation, night light, app control.
| Humidifying Method | Ultrasonic | Humidifying Capacity | 300 mL/h |
| Applicable Area | 46.5 畳 | Tank Capacity | 6 L |
| Operating Time | 60 時間 | Noise Level | 28 dB |
| Power Consumption | 26 W | Dimensions | 150x290x315 mm |
| Weight | 1.75 kg | Timer Function | Yes |
Dreo 8L Smart Humidifier with warm & cool mist, 80H runtime, smart control, quiet operation, and aroma diffuser.
| Humidifying Method | Ultrasonic | Humidifying Capacity | 550 mL/h |
| Applicable Area | - 畳 | Tank Capacity | 8 L |
| Operating Time | 80 時間 | Noise Level | 28 dB |
| Power Consumption | - W | Dimensions | - mm |
| Weight | - kg | Timer Function | Yes |
The LEVOIT Superior 6000S is a smart evaporative humidifier for whole-house use, covering up to 3000 sq. ft.
| Humidifying Method | Evaporative | Humidifying Capacity | 1500 mL/h |
| Applicable Area | 3000 Square Feet 畳 | Tank Capacity | 6 Gal L |
| Operating Time | 72-Hour 時間 | Noise Level | 28 dB |
| Power Consumption | 30 W | Dimensions | 12.72"D x 12.72"W x 26.7"H mm |
| Weight | 13.2 kg | Timer Function | Yes |
LEVOIT
LEVOIT Classic300S Ultrasonic Smart Top Fill Humidifier
$79(incl. tax)Amazon price as of 2025-09-04
The LEVOIT Classic300S is a smart ultrasonic humidifier with a 6L tank, app control, and essential oil diffuser.
| Humidifying Method | Ultrasonic | Humidifying Capacity | - mL/h |
| Applicable Area | - 畳 | Tank Capacity | 6 L |
| Operating Time | 60 時間 | Noise Level | 30 dB |
| Power Consumption | 26 W | Dimensions | - mm |
| Weight | - kg | Timer Function | Yes |
The LEVOIT OasisMist4.5L is a smart humidifier with warm & cool mist, customized humidity, and easy top fill.
| Humidifying Method | Ultrasonic | Humidifying Capacity | - mL/h |
| Applicable Area | - 畳 | Tank Capacity | 4.5 L |
| Operating Time | - 時間 | Noise Level | 26 dB |
| Power Consumption | 12 W | Dimensions | - mm |
| Weight | - kg | Timer Function | Yes |
