When a cheaper concertina filter sits next to a genuine Andreae filter, they can look almost identical on the shelf. The differences show up later, in how long the filter lasts, how consistently it performs, and how clean your finishes stay. If you have been buying generic concertina filters to save money but feel like you are replacing them constantly, this comparison is for you.
We will look at what actually separates genuine Andreae filters from low cost alternatives, and why that matters for your bottom line. The aim is to give you the facts so the performance case speaks for itself.
What you are really comparing
On the surface, both products are accordion pleated paper filters for the inlet position of a dry spray booth. The meaningful differences sit in the details that you cannot always see at the point of purchase. These include the quality and grade of the paper, the consistency of the pleat geometry, the structural rigidity under airflow, the loading capacity and service life, and the availability of compliance documentation.
Each of these factors influences how the filter performs once it is in your booth and air is moving through it. A filter that looks the same can behave very differently under working conditions.
Media quality and pleat consistency
The paper grade determines how well the media captures overspray and how well it resists tearing and collapse. Genuine Andreae filters are made to a consistent standard, which shows in the evenness of the folds and the strength of the media. Pleat geometry matters more than many buyers realise, because uneven pleating creates patches that capture poorly and patches that clog early. When the folds are inconsistent, airflow becomes uneven and overall efficiency drops. Consistent, precise pleating is one of the clearest markers of a quality concertina filter.
Structural rigidity and filter life
Under steady airflow, a filter has to hold its shape to keep working as intended. Generic alternatives that collapse or deform under pressure allow unfiltered air to bypass the media entirely. Genuine Andreae filters are built to stay rigid and load progressively, which extends their useful life. A filter with higher loading capacity simply holds more overspray before it needs changing. That means fewer changeovers, fewer interruptions, and less time spent on filter management during production.
The total cost of ownership case
The sticker price of a cheap filter is only part of the story, and often the smaller part. If a low cost filter needs replacing twice as often as a genuine Andreae filter, the saving disappears quickly once you count labour and downtime. There is also the cost of mid job failures, where a collapsed or overloaded filter forces an unplanned stop.
Genuine Andreae filters last longer and perform more consistently, which reduces both replacement frequency and the risk of those failures. When you total up filter cost, labour, and lost production, the genuine product frequently works out cheaper over time.
The impact on paint finish quality
This is where the difference becomes most visible, because filtration and finish are directly linked. A generic concertina filter that deforms under airflow lets unfiltered air carry dust and contamination into the booth. That contamination shows up as defects in the finish, which means rework, wasted product, and lost time.
A filter that holds its shape and captures consistently protects the clean air environment your finish depends on. Protecting finish quality is the strongest practical reason to choose a filter built to a reliable standard.
How to identify and source genuine Andreae filters
One challenge operators face is telling genuine Andreae filters apart from look alike products. The simplest safeguard is to buy from an authorised supplier who can confirm what you are getting.
AeroFlow Filters is an authorised Andreae filter supplier and holds stock in Australia for fast local dispatch. That means you get the genuine product without waiting on offshore shipments or risking unknown imitations. If a representative has recommended Andreae filters and you want to understand the value, or you simply want a reliable local source, the AeroFlow Filters team can help.
Browse the genuine Andreae filter range or contact AeroFlow Filters for advice on getting consistent performance and better value from your concertina filters.
