Andreae AF223 High-Efficiency (HE) Exhaust Filter | 20″ x 20″ (Box of 28)
The Andreae AF223 is a high-efficiency accordion-style filter designed for professionals who cannot compromise on air purity.1 By integrating a high-loft polyester backing with the world-renowned Andreae pleated paper design, the AF223 captures virtually all paint solids, including the microscopic “fines” common in modern high-solids and waterborne coatings.
This 20″ x 20″ model is the preferred choice for standard filter banks, providing a perfect seal and industry-leading longevity.
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Near-Total Efficiency: Achieves up to 99.8% arrestance efficiency.
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Extended Service Life: Holds up to 5 times more overspray than standard fiberglass pads.
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EPA 6H / NESHAP Compliant: Meets federal requirements for hazardous air pollutant (HAP) reduction.
Specifications
| Feature |
Details |
| Model Number |
AF223 (High Efficiency / HE) |
| Dimensions |
20″ x 20″ (Standard Square Frame) |
| Media Construction |
Multi-layer Kraft Paper + Polyester Backing |
| Holding Capacity |
Up to 11 lbs of overspray per filter |
| Efficiency Rating |
99.2% to 99.8% (Variable by coating) |
| Quantity |
Industrial Bulk Pack (Box of 28) |
Why Upgrade to the AF223?
1. Dual-Stage Filtration Technology
The AF223 doesn’t just block air; it cleans it. The front pleated paper uses inertial separation to sling heavy paint particles into deep storage pockets.2 The rear polyester layer then acts as a mechanical strainer, catching the lighter particles that typically escape through standard accordion filters.
2. Stable Airflow and Consistent Static Pressure
In 2025, maintaining consistent booth pressure is critical for avoiding “trash” in your clear coats. The AF223’s unique geometry ensures that as the filter fills, airflow remains stable.3 This prevents the common problem of “booth hunting” where pressure fluctuates as filters reach capacity.
3. Reduced Disposal Costs
Because the AF223 lasts significantly longer than traditional flat media, you generate less hazardous waste. Fewer filter changes mean lower labor costs and less volume in your waste disposal stream.4
Expert Insights: Optimizing Your Exhaust System
The “Fines” Factor in Waterborne Paints
Modern waterborne basecoats produce smaller, drier overspray particles. Standard cardboard filters often let these “fines” pass through to the exhaust fan. The AF223’s polyester backing is specifically engineered to stop these particles, preventing a buildup of dried paint on your fan blades that can lead to vibration and motor failure.
Professional Maintenance Tips
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Correct Orientation: Always install the filter with the white polyester side facing the exhaust fan (the air exit). The brown “V-shaped” paper must face the spray gun.
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Manometer Guidance: For the best balance of motor protection and filter life, change the AF223 when your manometer shows a pressure increase of 0.5″ w.g. over your clean-filter baseline.
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Compression Check: Do not over-compress the filters in the frame. The pleats need to be open to allow the “pockets” to catch and store paint solids effectively.
Why the Box of 28 is the Shop Favorite
The 20″ x 20″ size is ubiquitous in both automotive and industrial settings. Our Box of 28 is designed for high-production environments, ensuring you have enough stock for multiple full-booth changeouts while providing the lowest possible price per unit.5
Looking for a different size? Additional sizes can be found at the links below:
