Rain Curtain Multifunctional Humidifier by 720 Health iTech is a highly esteemed winner of the very prestigious 2025 Golden A' Design Award in Heating, Ventilation, and Air Conditioning Products Design Competition Category.
GoldHVAC· 2025
Rain Curtain Multifunctional Humidifier
Client: 720 Health (Beijing) iTech Co., Ltd.
Golden A' Design Award Winner in HVAC Category
Verified Award Winner
Verify Award Status for #165114The Design
About Rain Curtain Multifunctional Humidifier
Rain Curtain is a combined air purifier and humidifier designed for home use. Water is circulated and sprayed onto the humidification filter from above, which keeps the filter moist and improves humidification efficiency. The filter is separated from the water tank to reduce bacterial growth. A semi-transparent window, named the rain curtain, makes the flowing droplets visible during operation. Four air purification functions and five water sterilization functions are included. Rain Curtain is controlled through the front touch screen or a mobile application.
The Recognition
About the Golden A' Design Award
Rain Curtain Multifunctional Humidifier is a Golden A' Design Award winner, an immensely prestigious recognition granted to first-rate, marvelous, and outstanding designs. Golden winners are exceedingly innovative, visionary, and glamorously dazzling creations that reflect the prodigy, wisdom, and prowess of their designers. Rain Curtain Multifunctional Humidifier is expected to be a highly praised, trendsetting, and monumental invention that delivers unprecedented value. This Golden A' Design Award-winning design is a spectacular, respected project that highly benefits and advances the boundaries of art, science, design, and technology. Rain Curtain Multifunctional Humidifier creates intense feelings of desire, evokes passion, encourages creativity, and fascinates us.
Where to Get It
Smart Air Purifiers and Humidifiers
We develop advanced air purification and humidification systems featuring patented living water circulation technology that prevents bacterial growth while delivering superior performance. Our smart home solutions combine quadruple air purification with quintuple water sterilization, creating healthier indoor environments through innovation recognized internationally.
Shop NowBehind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- Traditional siphon mistless humidifiers can promote bacterial growth due to immersed cartridges. The company developed Living Water Circulating Spray Humidification Technology, which sprays water onto the cartridge from above, keeping it soaked and improving efficiency. The cartridge is separated from the water tank to minimize bacteria. The "rain screen" window visualizes the humidification process, with droplets flowing like "rain mist" on the transparent PP surface for a natural experience.
- Dimensions & Packaging
- Dimensions: Approximately 330 x 330 x 780 mm
Net Weight: Approximately 10.8 kg
Rated Voltage: 220V
Rated Power: 57W
Noise Level: 58 dB
Rated Humidification Capacity: 1200 mL/h
Features: Negative ion module, PM2.5 laser sensor, temperature and humidity sensors, 4-speed wind adjustment, screen display, and 5 touch buttons. - Tags
- Humidifier, Air purifier, Smart Air Purifier and Humidifier, 720 Smart Air Purifier and Humidifier,
- Production Technology
- The company designed the "Rain Curtain" semi-transparent window to showcase its water circulation spray humidification technology, allowing users to see rainwater effects on glass. Emphasizing "less is more," the product's front was simplified, focusing on the round screen and transparent window. The air intake grille is cleverly hidden on the sides and back, while the square and round contours help it blend seamlessly into various home environments.
- Design Challenge
- Traditional siphon humidifiers use soaked filters, which can cause bacteria to grow in the water. Generally, if the filter is not soaked in water, the humidification efficiency may be reduced. To this end, the company has developed a live water circulation spray humidification technology that sprays water from above to the humidification filter to keep it moist at all times and improve humidification efficiency. The filter is separated from the water tank to reduce bacterial growth.
- Research
- This product uses living water circulation spray technology, delivering 1200ml/h of humidification for spaces up to 120 square meters. The 6L water tank allows for 19 hours of continuous use. With a particle CADR of 400, it purifies areas up to 48 square meters. It features a dynamic humidity algorithm for intelligent adjustments, preset modes, and an automatic air-drying function. It also monitors temperature for optimal humidity and includes a sleep mode for added comfort.
- Inspiration
- The 720 Air Purifier Humidifier features active water circulation spray technology, directing water to the top of the cartridge for downward spraying. This design separates the cartridge from the water tank, minimizing bacterial growth. It includes four air purification and five water anti-bacterial functions for fresh air. The "rain curtain" translucent window showcases the technology, simulating rain on glass for a soothing humidification experience.
- Project Duration
- The project officially started in Beijing, China in March 2023 and will be completed and listed in China in October 2024.
- Operation Flow
- Users can control the product via the "Smart Life" app or the front touch screen, allowing them to set fan speeds, humidity levels, and switch between preset modes. The screen will prompt users to clean the filter when it is exhausted. When the top circular screen shows "00%" for the water tank, users can easily fill it with tap water through the top port. The water tank includes five levels of antibacterial technology to purify the water at the source.
- Team Members
- Product Manager:Yu Hua
Product Manager:Si Xiaolei
Designer:Chen Jian
Designer: Cao Lan
Designer: Zhao Feixiang
Designer:Diao Ke
Designer:Cai Weibin
Designer:Li Huakeng
Designer:Huo Junhui
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