In the pursuit of indoor air comfort, humidifiers have become commonplace in many homes and offices. Among the diverse 

humidification technologies available, wet membrane humidifiers are gaining increasing attention for their unique operating 

principle and notable energy-saving and eco-friendly characteristics. Eschewing complex energy conversion, they return to 

the most fundamental physical process—natural evaporation—providing a quiet, clean humidification solution.

I. Core Principle: Returning to Natural Physical Evaporation

The core function of a wet membrane humidifier lies in simulating the natural evaporation process of water. Its central component 

is a special material with excellent water absorption and a vast surface area—the wet membrane (also known as an “evaporative 

mesh” or “honeycomb fiber membrane”). This process can be broken down into several distinct physical steps:

• Water Circulation and Saturation: A pump continuously feeds water from the bottom reservoir to the top of the wet membrane.

  Under gravity, water permeates downward evenly, fully saturating the entire membrane material to form a massive “water wall.”

• Air Exchange and Evaporation: Dry, warm air is forced through the moist wet membrane by a fan. Upon contact with the vast

  wet surface, intense heat and mass transfer occurs between the air and water. Water molecules absorb heat from the air

  (evaporative latent heat) at the wet membrane surface, transitioning from liquid to vapor and diffusing into the passing air stream.

• Energy Transfer and Cooling: This evaporation process is inherently endothermic. As air loses heat (for water vaporization),

  its temperature slightly decreases while humidity significantly increases. Thus, wet-film humidification increases air humidity

  while providing a slight cooling effect. Thermodynamically, this process is termed “adiabatic humidification” or

  “isenthalpic humidification.”

• Throughout this process, no external heat source or high-frequency vibration is required. It solely harnesses the air's inherent

  dryness and kinetic energy to drive the natural phase transition of water—a testament to “silent physical wisdom.”

II. Core Advantages: Energy Efficiency, Cleanliness, and Adaptability

Compared to ultrasonic humidifiers (which atomize water into micron-sized particles via high-frequency vibration) and electric 

heat humidifiers (which boil water to generate steam), wet-film humidification technology demonstrates multiple outstanding advantages:

• Extremely Low Energy Consumption: Power consumption primarily comes from driving low-power pumps and fans, typically

  only a fraction of ultrasonic humidifiers and far below electric heaters requiring continuous heating. Long-term use delivers

  significant energy savings and low operating costs.

• Absolutely no “white powder” contamination: Ultrasonic humidifiers may expel minerals like calcium and magnesium along

  with the mist, forming irritating white powder that contaminates air and furniture. Wet-membrane humidification's pure

  evaporation principle releases only pure water molecules into the air, while most minerals remain trapped in the wet membrane

  or water tank. Regular cleaning ensures clean air output.

• Flexible water quality requirements: Due to its non-precise physical evaporation principle, wet membrane humidifiers can directly

  use tap water. While purified water extends membrane lifespan and reduces scale buildup, even ordinary tap water produces no

  visible pollutant emissions, offering greater adaptability.

• Quiet and Safe Operation: Operating noise primarily comes from low-speed fans, typically very quiet. Additionally, the absence

  of hot steam (eliminating scalding risks) and high-frequency oscillating components ensures safer, more reliable operation.

• Balanced Humidification: Humidification output naturally adjusts to ambient humidity levels. Drier air accelerates evaporation;

  as indoor humidity approaches comfort levels, evaporation slows automatically, preventing over-humidification.

III. Ideal Applications: The Perfect Choice for Comfort and Quality

Based on these characteristics, wet-membrane humidifiers are exceptionally suited for the following scenarios:

• Long-term residential use: Especially in bedrooms and living rooms, their quiet operation, fog-free performance, and absence

  of white residue provide all-night comfort while safeguarding respiratory health and reducing electricity costs.

• Environments Demanding High Air Quality: Such as study rooms (protecting books and musical instruments), homes with infants

  or sensitive individuals, preventing any potential secondary air pollution.

• Medium-Sized Office Spaces and Commercial Venues: Including offices, conference rooms, hotel guest rooms, libraries, etc.,

  requiring quiet, large-area, and continuously balanced humidification.

• Complementing HVAC systems: Efficiently and energy-consciously compensates for dry air caused by winter heating or summer

  dehumidifying air conditioning.

Conclusion

The wet membrane humidifier functions like a miniature “artificial wetland.” It doesn't rely on force but harnesses material science 

and natural physical principles to gently harmonize the air we breathe. In today's era emphasizing energy conservation and healthy 

living, they offer a more natural, economical, and eco-friendly humidification solution. Understanding their underlying evaporation 

principles and exceptional characteristics empowers us to make clearer, more informed decisions among various technologies, enjoying 

the perfectly balanced moisture and comfort delivered by modern innovation.