Andreae Filters – High Holding

Rigid Structure

Fiberglass Layer



Load Efficiency


High Solids

Polyester Bi-Components

The Andreae HH Original filter has a higher filtration efficiency while keeping low airflow resistance. This means the filter lasts longer, ensuring a reduction in maintenance costs. The HH is made out of 2 layers of heavy “kraft” paper punched, pleated and glued together, completed with a fiberglass layer increasing both the filter’s holding capacity and filtration efficiency.


Load lb/ft2

Lacquers 2.14

High Solids 2.57

Polyester 2.79

Efficiency %

Lacquers 97

High Solids 98.50

Polyester 98.50

Recommended Air Velocity

0.5 to 1 m/s

Pressure drop at / by

0.5m/s 20pa

0.75m/s 30pa

1.0m/s 40pa

Ma. recommended pressure drop

128 pa (possible up to 256)