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We take the dust out of industry®

Quality> Final inspection of the fi lters> Our products are tested

according to EN779, EN1822, ARAMCO or ASHRAE 52.2

Satisfi ed customerQuality on time> 95% on-time deliveries. > Focused on continuous improvement

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Material sourcing> Global sourcing of raw material > Vendor and material quality approved before sourcing> Quality inspection upon arrival

R&D> High performing products> Filter life expectancy evalution> Mobile Test Rig

Manufacturing> In-house air fi lter production > Lean manufacturing and

continuous process improvement> Highly trained workers

A GLOBAL FILTER MANUFACTURER DELIVERING HIGH QUALITY ON TIME

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TDC Filter and Nordic Air Filtration are part of Midwesco Filter Resources, Inc.Together, we provide high technology air fi ltration solutions for all operating environ-ments in all parts of the world. Our cartridges are installed on GE, Siemens, Alstom, Turbomach, Solar and many othergas turbines around the world. With our vast gas turbine fi ltration experience and our wide range of high quality fi lter media and material, we offer custom solutions for your specifi c air inlet fi ltration needs, replacement fi lter elements as well as on-site technical fi eld support. We have solutions for all environments. Our R&D departments and manufacturing sites situated in Denmark and in the USA work closely together to ensure our global customers certifi ed high quality products. Ineverything we do, we strive to reach our primary goal: To continuously developinnovative fi ltration solutions that increase performance and reduce cost for ourcustomers.

Solutions for All Environments

Specializing in Gas Turbine Air Inlet Filtration

DESERT Hot and dry with with heavy concentration of blowing sand

OFFSHORE Salty corrosive moisture, high humidity and occasional heavy fog

COASTALCorrosive moisture and high humidity

ARCTICDry air, snow and frost can block fi lters

TROPICALHigh temperature and humidity

URBAN Polluted air and high levels of hydrocarbons and particles

= ISO9001 program guarantees optimized and standardized manufacturing processes.Nordic Air Filtration is ISO9001 certifi ed / TDC Filter is ISO compliant.

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We take the dust out of industry®

Pre-Filter> Panel> Wraps

Plastic ABS Cartridge> Non-corrosive inner liner> 100% incinerable> Exclusively made by Nordic Air Filtration

Conical and Cylindrical Cartridges

Wide Range of High Quality Filters for Every Application

> CERTIFIED PRODUCTS: OUR PRODUCTS ARE TESTED ACCORDING TO EN779, EN1822, ARAMCO OR ASHRAE 52.2> ANTI-COLLAPSE PleatKeeper® FOR OPTIMAL PERFORMANCE> ALL FILTERS CAN BE EQUIPPED WITH TDC FILTER AND NORDIC AIR FILTRATION’S MEDIA SELECTION TO SUIT EVERY APPLICATION> CUSTOMIZED DESIGNS TO MEET YOUR SPECIFIC REQUIREMENTS

Standard Cartridge> Open/close & open/open> Expanded metal outer mesh> Expanded or helix inner mesh

Composite Filter System (CFS) Cartridge

Square FlangeCartridges

Single Panel FilterPulsing Panel fi lter

Twist-LockCartridges

V-Pack Mini Pleat

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We take the dust out of industry®

...for Increased Performance

Filter MediaSolutions

Base Media

Membrane Treated Media

Static

standard premium*

standard premium*

standard premium*

MEDIA TYPE SOLUTIONS FOR PERFORMANCE

* Optimized perform

ance & cost reduction

TurboWeb®-High Effi ciency> Water/Salt repellent and moisture resistant> A cost effective alternative to HEPA fi lter media> Exceptional initial fi ltration effi ciency greater than 95% for 0.3 - 0.4 microns> Special treatment to repel moisture and resist salt from entering the media - ensures cleaner air quality leading to less compressor washing and less down time> Higher compressor effi ciency> Higher power output

Nano Treated Media standard premium*> Increased initial effi ciency> Reduce DP> Excellent dust cake release> Pulsable media

Synthetic Media standard premium*> High durability> Improved dust cake release> Excellent moisture tolerance> Abrasion resistance> Pulsable media

> Blended cellulose with synthetic fi bers> Acceptable fi lter life and fi ltration effi ciency> Pulsable media

> Highest effi ciency> Resistance to water and salt carry over> Pulsable media

Filter Media Solutions for Increased Performance

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

Micron

ASHRAE 52.2 Initial Efficiency Comparision

REPELLENT

W

ATER&SALT

TurboWeb®-High Effi ciency Media. An Alternative to HEPA Filter Media

Water/Salt repellent and moisture resistant> A cost effective alternative to HEPA fi lter media> Static fi lter media> Exceptional initial fi ltration effi ciency greater than 95% for 0.3 - 0.4 microns> Special treatment to repel moisture and resist salt from entering the media - ensures cleaner air quality leading to less compressor washing and less down time> Higher compressor effi ciency> Higher power output

LAYER 1 Proprietary high effi ciency laminateLAYER 2 Special treatment to resist moisture and salt from entering the mediaLAYER 3 100% synthetic media

= TurboWeb®-High Effi ciency = Synthetic base media = Cellulose base media

< LAYER 1 & 2

< LAYER 3

PRODUCT LAUNCH

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We take the dust out of industry®

A B

MESH/CORE

END CAPS

STRAPS

GASKET

Plastic inner core (non corrosive)

Expanded welded metal inner core/outer mesh> Galvanized> Stainless steel> Powder coated steel

Expanded metal helical inner core> Stronger design & no welding

PLEATERA variety of pleating machines enabling> A wide range of fi lter options> High production capacity

HELICAL INNER CORE> No welding> Customized solutions> Greater crush resistance compared to exp. metal

HOTMELT> Effective down to -60° Celsius/ -76° Fahrenheit> Automated application> Accurate high quality adhesion of media to inner

and outer mesh

MEDIA OPTIMIZATIONIn-house production of anti-collapse PleatLock and PleatKeeper® guarantees> Optimum performance> Low pressure drop> Better air fl ow

Galvanized steel

Stainless steel

Powder coated

Plastic ABS (non corrosive)

Seamless polyurethane gasket

EPDM

A

A B C D

A B

B C

A

A

A

A

C

B

B

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In HouseProduction & Control

Strap branded with your logo> Glued strap

WeldTECH® strap - Ultrasonic welded> No glue> Secures consistent pleat spacing > Minimizes trapping of dust behind strap

FilterOptions

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We take the dust out of industry®

We provide fi eld support and guidance by:

> Being present during installation of new fi lters to ensure correct installation

> Providing counseling about the most effi cient use and cleaning of fi lters over their operating life

> Offering on-site testing of fi lter cartridges by way of our Mobile Test Rig

Our new Mobile Test Rig enables test of 2 different fi lter cartridges simultaneously in the actual operating environments of our customers in all parts of the world.

By simulating a complete working Gas Turbine Air Inlet House with pulse cleaning, the Mobile Test Rig offers a unique opportunity to compare the effi ciency of existing fi lter cartridges with new types of cartridges and fi lter media on-site.

Laboratory Testing

Low total cost of ownershipWith our strong technical team and our laboratory facilities in Denmark and in the United States, we act as a counselor to our customers and ad-vise them about the optimum fi lter solution for their specifi c environment with the aim to ensure a lower total cost of ownership.

In our lab, we examine our customers’ current fi lters and establish:> Residual fi lter life> Filter suitability for specifi c operational environment> Suggest alternative media and design to improve fi lter performance, if needed

25+ years in the businessOur know-how and expertise derives from 25+ years in the business and from developing new products in close collaboration with large original manufacturers of gas turbine air inlet houses. Our collaboration with OEMs guarantees that our fi ltration solutions are in line with the latest technologies and optimized for the actual operating environments.

All products are certifi ed in accordance with regulatory requirements (EN779, EN1822, ARAMCO or ASHRAE 52.2)

Field Support and Field Test

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GTOB 0611p a r t o f t h e m i d w e s c o g r o u pp a r t o f t h e m i d w e s c o g r o u p

Gas TurbineAir Inlet Filtration

NORDIC AIR FILTRATIONNORDIC AIR FILTRATION

We take the dust out of industry®We take the dust out of industry®

The Americas 1 888 449 6374Email gasturbine@tdcfi lter.com

Europe +45 50 89 49 16Saudi Arabia +966-50 483 6547Middle East & India +971 50 4566906Asia +45 50 89 49 25China +86 139 1822 7265Email sales@nordic-air-fi ltration.com

Europe

Middle East& India Asia

USA

Midwesco Filter Resources, Inc

MANUFACTURINGSALES / CONTACT

TDC Filter2 Territorial Court | Bolingbrook | IL 60440 | USAPhone 1 630 410 6200Website www.tdcfi lter.comEmail tdcinfo@tdcfi lter.com

Nordic Air Filtration A/S Bergenvej 1 | DK-4900 Nakskov | DenmarkPhone +45 54 95 13 90 Website www.nordic-air-fi ltration.comEmail info@nordic-air-fi ltration.com

SOLUTIONS FOR ALL ENVIRONMENTS