HUMIDIFYING AIR PURIFIER KU2525 – Air Purification and Natural Evaporative Humidification
1. Product Overview
The KÜCHEN Humidifying Air Purifier KU2525 combines air purification and humidification in one compact appliance, designed for rooms measuring approximately 20–25 m². Featuring a three-stage HEPA H13 filtration system and Water Gating water filtration technology, the KU2525 helps improve indoor air quality while maintaining a more comfortable humidity level.
Its Humidity Free evaporative humidification technology adds moisture to the air without producing visible mist, helping prevent water droplets from settling on surrounding surfaces. With a 3L water tank, a brushless DC motor, intelligent humidity control, and remote operation through the KUCHEN SMART app, the KU2525 is designed for convenient everyday use.
2. Key Features
- 2-in-1 Air Purification and Humidification: Combines air filtration and humidification in a single appliance.
- Recommended Room Area: 20–25 m².
- Clean Air Delivery Rate (CADR): 110 m³/h.
- Humidification Rate: Up to 400 ml/h.
- Three-Stage HEPA H13 Filtration: Combines pre-filtration, activated carbon, and HEPA filtration to help capture airborne particles and reduce unwanted odors.
- Water Gating Filter Technology: Designed to support air–water contact during the humidification process.
- Humidity Free Evaporative Technology: Adds moisture through natural evaporation without generating visible mist.
- UV-C and Negative Ion Functions: Additional air-treatment features intended to support the appliance’s air purification performance.
- NIDEC Brushless DC Motor: Designed for efficient and quiet operation.
- 3L Water Tank: Provides water storage for humidification.
- Four Fan Speeds: Allows users to adjust airflow according to their needs.
- Auto Mode: Automatically adjusts operation to help maintain a target relative humidity of 50%.
- Sleep Mode: Low-noise operation rated below 26 dB.
- Smart Display and Controls: A rotary control and display show temperature, humidity, filter replacement reminders, and low-water alerts.
- KUCHEN SMART App Connectivity: Supports remote control through the compatible application.
- Rated Power: 15W.
- Product Weight: 2.6 kg.
3. Air Purification and Humidification Technologies
Three-Stage HEPA H13 Filtration System
The KU2525 features a three-stage filtration system designed to help remove airborne particles and reduce unwanted odors.
- Pre-Filter: Captures larger airborne particles before they reach the subsequent filtration stages.
- Activated Carbon Filter: Helps adsorb certain odors and gaseous compounds.
- HEPA H13 Filter: Designed to capture fine airborne particles, supporting cleaner indoor air.
The supplied product information references particle filtration down to PM0.1. Actual removal efficiency for particles of this size should be confirmed against the product’s laboratory test report.
Water Gating Filter Technology
The Water Gating filter is designed to facilitate contact between air and water during operation.
- Upper Layer: A more open structure helps increase the contact area between air and water.
- Lower Layer: A denser structure forms part of the water filtration assembly.
The claimed removal of fine particles, formaldehyde, benzene, and other pollutants by this component should be verified against specific performance test results before being presented as a guaranteed function.
Humidity Free Evaporative Humidification
The KU2525 uses evaporative humidification to add moisture to indoor air without producing visible mist.
- Mist-Free Humidification: Helps avoid visible water droplets settling on nearby furniture and surfaces.
- Automatic Humidity Control: Auto Mode is designed to help maintain relative humidity at approximately 50%.
- Everyday Comfort: Helps improve comfort in environments where the air is too dry.
- Energy-Conscious Operation: Evaporative humidification does not require heating water to generate steam.
Actual humidification performance depends on room size, temperature, ventilation, and the existing humidity level.
UV-C and Negative Ion Functions
The KU2525 incorporates UV-C and negative ion functions as additional air-treatment technologies.
The supplied product information claims 99.9% inactivation of bacteria and viruses. This figure should only be used as a confirmed performance claim when supported by test reports specifying the tested microorganisms, testing conditions, exposure time, and applicable operating mode.
Negative ion technology is also described as helping particles aggregate. Its actual contribution to reducing airborne pollutants should be established through product-specific testing.
4. Product Benefits
- Cleaner Indoor Air: The multi-stage filtration system helps capture airborne particles and reduce certain unwanted odors.
- More Comfortable Humidity: Evaporative humidification adds moisture to help relieve discomfort associated with dry indoor air.
- Mist-Free Operation: Helps avoid visible mist and associated surface wetting.
- Convenient Humidity Management: Auto Mode helps maintain a target humidity level without requiring constant manual adjustment.
- Energy-Efficient Design: The appliance has a rated power of 15W.
- Quiet Operation: Sleep Mode is rated below 26 dB according to the supplied specifications.
- Easy Monitoring: The display provides temperature, humidity, filter replacement reminders, and low-water alerts.
- Remote Control: Compatible KUCHEN SMART app connectivity allows convenient operation from a mobile device.
- Compact and Lightweight: The stated 2.6 kg weight supports flexible placement within the recommended room area.
5. Technical Specifications
- Product Name: Humidifying Air Purifier
- Model: KU2525
- Recommended Room Area: 20–25 m²
- Clean Air Delivery Rate (CADR): 110 m³/h
- Humidification Rate: 400 ml/h
- Rated Power: 15W
- Motor: NIDEC brushless DC motor
- Air Filtration System: Three-stage HEPA H13 filtration
- Water Filtration Technology: Water Gating
- Humidification Technology: Humidity Free evaporative humidification
- Additional Air-Treatment Functions: UV-C and negative ions
- Water Tank Capacity: 3L
- Fan Speeds: 4 levels
- Auto Mode Target Humidity: 50% relative humidity
- Sleep Mode Noise Level: Below 26 dB
- Display: Temperature, humidity, filter replacement reminder, and low-water alert
- Control Method: Rotary control and KUCHEN SMART app
- Product Weight: 2.6 kg
- Filter Replacement Interval: Approximately 1 year, subject to usage and the manufacturer’s instructions
Product specifications and performance may vary by product version and operating conditions. Refer to the official technical documentation for the applicable model.
6. Recommended Use
The KÜCHEN Humidifying Air Purifier KU2525 is designed for indoor spaces of approximately 20–25 m², including bedrooms, living rooms, and home offices.
For optimal performance, place the appliance in a well-ventilated position with sufficient clearance around the air inlet and outlet. Clean the water tank regularly, follow the manufacturer’s filter maintenance instructions, and replace the filter when indicated.
Use the appliance according to the user manual, particularly when operating the UV-C function. Do not look directly at an exposed UV-C light source or operate the appliance with safety covers removed.












