What Is a Mist/Fog Cooling Fan?
Mist/fog cooling fans are cooling devices that release mist generated by ultrasonic waves or other means, combined with airflow from a blower. By utilizing the heat of vaporization principle, where heat is absorbed as water evaporates, these fans can lower the temperature by 37 to 41 °F below ambient temperature.
They are suitable for those preferring mild cooling effects over the strong cooling of air conditioners, offering a balance of coolness and humidity. These fans are versatile, providing humidification in winter and cooling in summer.
Uses of Mist/Fog Cooling Fans
Portable and tabletop mist/fog cooling fans are popular for personal use during outdoor activities, such as watching sports or walking, or as desk cooling fans in the office or kitchen. Stationary mist/fog cooling fans often supplement air conditioning or traditional fans and are equipped with various functions.
In commercial settings, mobile misting fans, attached to large fans, are used in spacious areas like factories, construction sites, and outdoor events. Some powerful models deliver cool air up to 30 meters away.
Principle of Mist/Fog Cooling Fans
Mist/fog cooling fans use the heat of vaporization principle to cool the air. Water is atomized into mist and combined with the fan’s airflow to efficiently evaporate and cool the surrounding air. Unlike air conditioners, which lower temperature by passing air through a cooled heat exchanger, these fans do not dehumidify. However, the evaporated water increases room humidity, often requiring a ventilation system.
How to Choose Mist/Fog Cooling Fans
1. Choose the Type That Best Suits Your Application
Choose from four types: handheld, tabletop, stationary, and large commercial. Handheld or tabletop fans are ideal for personal use, while stationary types are better for cooling larger rooms. Large commercial models are effective as spot coolers in expansive spaces.
2. Check the Capacity of the Water Tank
Consider tank capacity for prolonged mist emission. Handheld models typically hold 1 to 2 oz., tabletop models around 10-12 oz., and stationary models about a gallon. Larger capacities are generally preferable.
3. Convenient Functions
Look for models with adjustable airflow and mist volume, and those with air/mist mode switching for year-round use. Models with antibacterial material for the tank are easier to clean and maintain.
Precautions for Using Mist/Fog Cooling Fans
1. Do Not Use Around Electronic Devices
Avoid using mist/fog cooling fans near electronic devices to prevent malfunctions caused by moisture. Special caution is needed with USB-charged models connected to computers.
2. Avoid Use in Dusty Places
Using these fans in dusty areas may cause dirt accumulation due to mist absorbing dust, leading to potential fan and room cleanliness issues.
3. Do Not Operate for Long Periods at High Mist Volume
Operating the fan with high mist volume for extended periods can increase room humidity and wet surfaces, potentially creating conditions conducive to mold growth. Adjust the mist volume appropriately for the environment.