ML Series
Permanent, cleanable electrostatic air filters

Multi-Layer style media offers the user a choice of filtering capabilities. This filter features a low pressure drop combined with the ability to capture airborne dust. Lightweight construction yet durable and very easy to clean. Two direction airflow makes this simple for the end-user. The ML Series is the ideal choice for equipment and enclosures requiring permanent, cleanable air filters.

Recommended for fan enclosures in the medical, electronics, industrial, lighting, telecommunications and military electronics industries.

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Technical Information:



Custom made to any size


Two direction air flow


With or without frame


Media Specifications:

12 mil polypropylene, honeycomb weave
.030” (.76mm) thickness per layer (approximately)
Available in black (UV resistant) or white
Maximum operating temperature 200° F (93.3° C)

ML Series permanent cleanable air filters

Frame Specifications:

High impact ABS plastic
.25” (6.35mm)
.44” (11.18mm)
Available in black
Frameless filters available

ES Series permanent cleanable air filters


Framed Filters

+/- .03” (.76mm) L x W


+/- .03” (.26mm) thickness

Frameless Filters

+/- .01” (.26mm) L x W



Drill holes
Pull tab
Hook and loop
Frameless filters can be die cut into a variety of shapes


UL 900


Filter Performance Data
Model Average Synthetic Dust Initial Resistance *
ML-1 Lint filter N/A
ML-2 55% arrestance 0.05
ML-3 62% arrestance 0.06
ML-4 66% arrestance 0.10
* inches water gauge
Tests performed to ASHRAE Air Filter test Standard 52-76 at 300 FPM



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