Andreae cardboard filters – paint stop filters for spray booths and paint walls

Andreae cardboard filters – effective paint stop filtration for spray booths

Andreae cardboard filters are paint stop air filters designed for use in spray booths, paint walls and spray stations where overspray particles must be efficiently captured before air is discharged.

These filters are widely used in industrial painting processes due to their simple installation, high paint absorption capacity and cost-effective performance. Andreae cardboard filters serve as the first filtration stage in many spray applications, protecting downstream filtration stages, ducting and fans from paint contamination.

Filtration principle and performance

The filtration performance of Andreae cardboard filters is based on the principle of centrifugal force.
As paint-laden air flows through the filter, particles are forced to change direction multiple times within the labyrinth-shaped cardboard structure.

This causes paint droplets and particles to separate from the airflow and settle on the internal surfaces of the filter, while the cleaned air continues its path. Collected paint residues accumulate at the lower edges of the cardboard structure, reducing re-entrainment and improving overall capture efficiency.

Structure and construction

Andreae cardboard filters are manufactured from pleated recycled cardboard, forming a rigid labyrinth structure that ensures:

• Stable airflow during operation

• High paint absorption capacity

• Reduced risk of clogging compared to conventional flat filters

The pleated design prevents excessive overspray buildup in a single location, helping maintain consistent airflow velocity throughout the service life of the filter.

First-stage filtration concept

In most spray installations, Andreae cardboard filters are installed as the primary filtration stage.
Where higher capture efficiency or additional protection is required, they are commonly combined with a secondary filtration stage, such as paint stop mats or exhaust air filters.

<p> In multi-stage paint booth systems, Andreae cardboard filters are often combined with <a href="/collections/filtration-mats-roll-filters">paint stop mats</a> as a secondary filtration stage. </p>

Key advantages

• Effective capture of paint overspray

• Stable airflow throughout filter lifetime

• Easy and quick installation

• High absorption capacity

• Cost-effective solution for industrial painting

• Manufactured from recycled paper and water-based adhesives

• Environmentally responsible design

• Manufactured in Europe

Typical applications

Andreae cardboard filters are widely used in:

• Paint shops

• Spray booths

• Paint walls

• Spray stations and spraying machines

• Furniture industry

• Metallurgical industry

• Automotive industry

• Industrial processes involving paints, adhesives, oils and coatings

Custom dimensions – made to order

Andreae cardboard filters are supplied in custom dimensions, allowing precise integration into existing spray booths and paint walls.

• Custom length × width × height (mm)

• Suitable for retrofit and new installations

• Available in required quantities on request

This flexibility ensures optimal performance across a wide range of industrial painting systems.

Product configuration & quotation

Andreae cardboard filters are supplied on a quotation basis, allowing configuration of:

• Exact filter dimensions

• Required quantity

This ensures the filter solution is fully aligned with your spray booth design and operating conditions.