LIF4000/LIF4100 Filtration & Pressurization - Lintern Corporation | Industrial & Severe Duty Air Conditioners

LIF4000/LIF4100 Filtration & Pressurization

LIF-4000 Filtration Pressurization

Protect Operators and Assets from Gasses and Particulate Matter

If your air filtration and pressurization needs exceed the capacity of our LIC 250 system, our LIF4000/LIF4100 filtration and pressurization system will meet your air cleaning needs. Designed to remove toxic gas and particulate matter from various size enclosures, the LIF4000/LIF4100 protects equipment operators and other employees — as well as critical instrumentation — in some of the most hazardous industries and applications around the world.

Explore the specifications and flexible mounting options for the LIF4000/LIF4100 pressurization and filtration unit below. If you’d like to learn more about the features and applications of this unit and discuss its available options, please contact our sales team today.


Pressurization of enclosures up to 3000 ft³ (85 m³) @ 50/60Hz calculations based on 10% of room volume leakage per minute
Pressurization level of 0.05 inches W.C. (12.5Pa)
Total capacity: 600-900CFM
For additional pressurization levels, contact Lintern Corporation


Heavy gauge steel, epoxy coated
Optional 316 stainless steel


Variable Frequency Drive package with pressure transducer to automatically maintain internal room pressure


208-230/460/575/3/60 Hz VAC
380-415/500/3/50 Hz VAC
240 VDC with VFD


Adjustable slide plate located on return air opening


Motorized impeller, backward curved


No. 1 filter: Electrostatic pre-filter, washable
No. 2 filter: Disposable 2” (50mm) pleated filter
No. 3 filter: Absolute HEPA filter using a disposable glass medium; 99.97% efficiency on particulates .3 microns or larger
No. 4 filter: Six (6) cells (20lbs. each) with disposable media designed for your specific application


Optional with additional control package
13,660 BTUH (4 kW)
Filter: 470 lb/213 kg
Panel: 20 lb/9 kg
Total: 490 lb/222.26 kg


Vertical floor mount only
Direct to interior or exterior wall of enclosure or remote mount not exceeding 10’ (1.8m) away from enclosure
*See mounting page for configurations


Larger rooms can string up to 3 filters