Andreae Filters – High Efficiency

Rigid Structure

Polyester Layer


Load Efficiency


High Solids

Polyester Bi-Components

The Andreae HE Original Filter will bring a filtration efficiency near 100% while keeping the high loading capacity of the Andreae Original filter. The HE is made with 2 layers of heavy “kraft” paper, punched, pleated and glued together completed with a polyester layer on its back increasing its filtration efficiency

Load lb/ft2

Lacquers 2.24

High Solids 2.70

Polyester 2.93

Efficiency %

Lacquers 97.90

High Solids 99

Polyester 99.40

Recommended Air Velocity

0.5 to 1 m/s

Pressure drop at / by

0.5m/s 21pa

0.75m/s 32 pa

1.0m/s 42 pa

Ma. recommended pressure drop

128 pa (possible up to 256)