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Ionizer air fan,Portable Bench top ion air blower,high frequency AC ESD fan KF-21F

  • Decay time : 1.5s
  • Ion balance : 0±10V
  • Special tungsten alloy discharge needle


KF-21F is the low pressure high frequency beach top AC ionizing air blower,  It's portable and easy for use.

Ion balance can be achieved less than ± 10 V. Wind Speed is adjustable for this desktop ion air blower.Front window is removable for cleaning, maintenance and replacement.

Technical Parameters

ModelKF-21FAir volume2.56-4.07m³/min
Input voltageDC24VOzone concentrationbelow 0.03ppm (distance 150mm)
lon balanceAutomatic ion balance system 0±10VWorking temperature0-40℃
Decay timeAbout 1.5s   (distance 200mm)Working humidity

30- 70%RH (No condensation or water droplets)


1.26kg ( bracket included)

Product Size

142.6*69*174 mm ( bracket exclusive)


  • Apply high frequency AC type to achieve excellent ion balance.

  • Special tungsten alloy discharge needle for longer service time.

  • Indicator for fan operating alarm of both normal and abnormal condition.

  • Indicator for High voltage operating alarm of both normal and abnormal condition.

  • Visual management of working performance and wind speed display.

  • Removable discharge needle parts and the front window and convenience for cleaning, maintenance and replacement.

Test conditions

Working voltage: DC24V.   Testing voltage: ±1000V - ±100V.    Temperature: 23℃±2℃

DistanceDecay time (+/-)Ion balance(+/-)Remark
300mm1.0s/-1.5s 0±5V

1.Testing method: Using charged plate monitor to test.

2.Decay time tested with the maximum air volume and voltage from ±1000V to ±100V.

3.Test in the central area of the front air window. 


Structural highlights

01  Front window

Use a linear grid type window to make the blowing wind diffuse and enhance the static elimination effect, and can be flexibly disassembled for easy maintenance.

Accessory, can be purchased separately.

02  Discharge needle

Discharge needle parts can be disassembled for replacement and maintenance.Cleaning or maintenance outside the work area to avoid secondary pollution.

Accessory, can be purchased separately.

03  Housing 

Powder coating process, with standard white powder.

04  Indicator

Unique LED display for visual viewing the working status and management.

HV normal working condition      /  HV abnormal working condition

Fan normal operating condition  /   Fan abnormal operating condition

Air volume decrease, increase button and air volume indicator

06 Power supply

Equipped with DC socket and network power socket for easy connection with equipment and neat line.

07 Back window mesh

Metal window mesh ( 120*120 standard accessory for fan)

Filter window (accessory, can be purchased separately.)

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