AUTOMOTIVE AIR FILTER MEDIA APPLICATIONS

A new line of 0.3 to 0.5 micron nanofiber-treated automotive air filter media has beenspecifically designed to meet the growing needs of OE applications. H&V’s NANOWEB®-coatedmedia offers a four-fold increase in efficiency and double the capacity per unit area when testedagainst NaCl (soot). The material also offers twice the protection of untreated media whentested with current standard AC fine test dust. Only NANOWEB provides all this protection whilestill offering excellent dust-holding capacity for automotive air filtration applications.NANOWEB-coated media is designed to protect automotive engines longer, with more efficientmedia that maximizes energy use.

Increased efficiency. NANOWEB-coated filter media provides improved efficiency whileprotecting automotive engine components from harmful dust particles. When tested with ACfine test dust, NANOWEB media shows a considerable increase in fractional efficiency overuntreated substrates (90% versus 76%). A significant improvement in fractional efficiencyis also seen when tested with 0.3 to 0.4 micron of NaCl particles (78% versus 5%). Theincrease in particle efficiency with NANOWEB coating provides greater filtrationperformance and engine protection.

Lower restriction. NANOWEB filtration media has been specifically designed with high-permeability substrates then coated with NANOWEB fibers to provide lower mediarestriction with higher filtration efficiency. This media combination enables the high-efficiency filtration advantages provided by the nanofiber coating without restricting airflow. The lower element restriction results in reduced in-use filtration energy costs.

Higher dust-holding capacity. NANOWEB auto air media offers improved dust-holdingcapacity, increasing overall filter life. The NANOWEB coating provides double the NaCl (soot)dust-holding capacity and similar media life of typical untreated substrates when testedwith AC fine dust.

Hollingsworth & Vose, aleader in engineered paperand nonwovens since 1843,consistently delivers state-of- the-art solutions toachieve advancedperformance for demandingapplications. Developedunder the HVisionTM

technology platform,NANOWEB-coated media isideally suited to meet thegrowing demands ofautomotive air filter mediaOE applications.

NANOWEB Auto Air MediaPalas NaCl Dust-Holding Capacity (g/m2)

NANOWEB Coated Media

30

20

10

0Standard MediaOWEB C d M S d d M di

NANOWEB Auto Air MediaPalas AC Fine Test Dust-Holding Capacity (g/m2)

NANOWEB Coated Media

200

150

100

50

0Standard MediaSt d d M di

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www.hollingsworth-vose.com

Hollingsworth & Vose Company112 Washington StreetEast Walpole, MA 02032 U.S.A.508-850-2000info@hovo.com

The H&V logo is a registered trademark ofHollingsworth & Vose Company. NANOWEB isa registered trademark of Hollingsworth &Vose Company. HVision is a trademark ofHollingsworth & Vose Company. All othermarks are trademarks of their respectivecompanies.

© 2008 Hollingsworth & Vose. All rightsreserved.

12/08 0821055

NANOWEB Performance with AC Fine Test Dust

•Improved fractional efficiency over untreated substrates (90% versus 76%)

•Similar media life to untreated substrate (50 + minutes)

NANOWEB Performance with 0.3 to 0.4 Micron of NaCl Particles (soot)

•78% fractional efficiency with NANOWEB versus 5% with standard untreated media

•140 minutes lifetime with NANOWEB versus 80 minutes with standard untreated media

NANOWEB Auto Air Filter Media Basis Weight Overall Air Permeability Air Flow Efficiency — 0.3 Max Pore

(g/m2) Caliper (l/m2/sec @ Resistance micron NaCl (% @ Diameter(mm) 20 mm WC) (mm WC @ 5.33 cm/sec) (microns)

5.33 cm/sec)

NANOWEB 126 0.73 691 1.5 39 72TR7330-16

NANOWEB Auto Air MediaPalas AC Fine Test Dust Data

Effi

cien

cy %

Pressure Buildup (Pa)

Time (Min)

100 -

95 -

90 -

85 -

80 -

75 -

70 -0 10 20 30 40 50 60

- 2000- 1800- 1600- 1400- 1200- 1000- 800- 600- 400- 200- 0

StandardMedia Eff.

NANOWEB-Coated Media Eff.

- - - - - - - - - -

Standard Media dP

NANOWEB-Coated Media dP

NANOWEB Auto Air MediaPalas NaCl Test Dust Data

Effi

cien

cy %

Pressure Increase (Pa)

Time (Min)

100 -90 -80 -70 -60 -50 -40 -30 -20 -10 -

0 -0 20 40 60 80 100 120 140

- 2000- 1800- 1600- 1400- 1200- 1000- 800- 600- 400- 200- 0

-

- - - - - - -

-

- 1- 1- 1- 1- 1- 8- 6- 4- 2- 0

- - - - - - - - -

- - -

-

- - - - - -

- - -

StandardMedia Eff.

NANOWEB-Coated Media Eff.

Standard Media dP

NANOWEB-Coated Media dP

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