Accordion Filters

Accordion Filters

Komtfil Accordion Filters offer 98% efficiency pleated air filtration for industrial applications

Komtfil accordion filter element

Maintaining a clean production environment requires capturing liquid particulates before they escape into the exhaust system. Traditional air filter media often clogs rapidly when exposed to sticky overspray from enamel, epoxy, and varnish. Specialized accordion filters—also widely known as pleated paper or baffle series filters—solve this by providing a heavy-duty, high-capacity filtration path designed specifically for industrial spray finishing operations.

How Accordion Baffle Filters Work

Unlike mesh or fiberglass media that rely on straining particles, accordion filters utilize inertial separation.

  • Airflow Dynamics: The exhaust fan forces paint-laden air to change direction rapidly inside the v-shaped pleats.
  • Overspray Collection: Because liquid paint particles are heavier than air, momentum prevents them from turning with the airflow. They crash into the back walls of the filter pockets and settle out of the stream.
  • Continuous Exhaust Flow: This design forces overspray to build up outside the main path of airflow, maintaining stable pressure.

Key Efficiency and NESHAP Compliance Ratings

Industrial coatings must comply with strict environmental policies. Our high-performance baffle filters achieve exceptional arrestance efficiency ratings, frequently capturing up to 98% or more of high-solid overspray depending on the coating chemistry.

  • NESHAP Compliance: Engineered to meet or exceed 40 CFR Part 63 requirements, providing necessary documentation for regulatory oversight.
  • System Protection: Exceptional holding capacity keeps downstream exhaust ducts, compressor blowers, and exhaust fans completely free of hardened paint crust.

Types of Accordion Filters

Standard Baffle Series

Standard Baffle Series

Our standard accordion filter baffle series is the workhorse of the modern paint booth. Built from heavy-duty, self-supporting pleated paper, this series utilizes inertia to separate liquid particulates from the airflow. As paint-laden air enters the filter, it is forced to change direction rapidly. The heavier paint particles strike the deep V-shaped pockets and stick, while the clean air moves freely through the exhaust. This standard efficiency design is perfect for high-volume lines spraying air-dried coatings, enamels, and standard primers where consistent airflow is a top priority.

Poly-Back Baffle Series

Poly-Back Baffle Series for High Efficiency

For shops spraying high-solid coatings, tacky coatings, clear coats, or epoxy varnish, our Poly-Back Baffle Series delivers a significant boost in arrestance efficiency. We bond a high-loft polyester backing to the pleated paper filter media. This creates a multi-stage filtration process: the front paper pleats capture the bulk of the heavy overspray collection, while the synthetic rear layer traps the finest remaining liquid particulates. This dual-stage setup prevents premature face-loading and shields your exhaust fans from fine, sticky mist. If you are struggling with strict environmental regulations, upgrading to this high-efficiency series ensures solid NESHAP compliance.

Custom and Standard Sizes

Custom and Standard Sizes

Every spray booth has its own footprint, which is why we provide complete sizing flexibility:

  • Standard Sizes: We stock all industry-standard dimensions—including the popular 3′ x 30′ and 3′ x 32′ filtration rolls—designed for rapid drop-in carrier replacements.
  • Custom Sizes: If your exhaust plenum features a non-standard configuration, we manufacture custom air filters tailored to your exact height and length specifications.

Instead of dealing with loose or ill-fitting custom air filters that let overspray bypass your system, we cut our media to lock tightly into your specific frame, completely eliminating any air bypass.

Key Benefits of Komtfil Accordion Filters

High Paint Holding Capacity and Longevity

Our accordion filters are engineered to handle heavy overspray collection without breaking a sweat. Thanks to the smart pleated paper design, these filters hold up to five times more liquid particulates, tacky coatings, and enamel epoxy varnish than standard fiberglass mats. By maximizing the surface area, our baffle series keeps your booth running longer between changes, drastically cutting down on maintenance downtime.

High Paint Holding Capacity and Longevity
Performance MetricOur Accordion FiltersStandard Fiberglass Media
Holding CapacityHigh (Up to 18 kg/m²)Low to Moderate
Airflow ResistanceConstant, minimal pressure dropIncreases rapidly as loaded
Arrestance EfficiencyUp to 98.1% (High-Efficiency Poly-Back)Highly variable

Consistent Airflow and Minimal Pressure Drop

Maintaining the right face velocity is critical for a flawless spray finishing job. These exhaust filters use inertia separation to trap paint overspray while allowing air to flow freely through the open geometry. This unique design guarantees consistent airflow and a minimal pressure drop, preventing your exhaust fan from straining and ensuring a cleaner working environment.

Eco-Friendly and Cost-Effective Waste Disposal

Managing hazardous waste shouldn’t drain your budget. Because our filters fold down flat, they take up a fraction of the storage and disposal space required by bulky roll media. Made primarily from structured cardboard, they are far more eco-friendly to incinerate or dispose of, providing a cost-effective waste management solution for your shop.

Knowing when to switch them out is just as important as choosing the right media; just like checking if your furnace filter needs changing, monitoring static pressure ensures you get the absolute most out of every accordion module.

Eco-Friendly and Cost-Effective Waste Disposal

Industrial Applications and Uses

As a leading accordion filter manufacturer, we design our separation systems to handle the heavy demands of commercial finishing. Our pleated paper baffle technology thrives in environments where high-volume overspray collection is required to keep operations running smoothly without frequent downtime.

Spray Finishing Booths

Spray Finishing Booths

Liquid particulates and air-dried coatings can quickly overload standard filtration systems. In a high-production spray finishing booth, our accordion filters utilize inertial separation to trap tacky coatings, enamel, epoxy, and varnish while maintaining a clean exhaust path. For facilities looking to optimize their entire ventilation setup, upgrading your paint booth filters ensures that high-volume overspray is contained before it reaches your external exhaust system.

Automotive and Aerospace Coating

Automotive and Aerospace Coating

Precision is non-negotiable in automotive refinishing and aerospace coating sectors. Our filters deliver the strict arrestance efficiency required to prevent finish blemishes while managing heavy primer and clearcoat overspray.

  • Consistent Air Velocity: Prevents turbulence around the vehicle or aircraft component.
  • High Holding Capacity: Minimizes filter changes during critical, multi-stage coating cycles.
  • Cross-Brand Utility: Functions perfectly as high-performance carrier replacements for standard downdraft and crossdraft exhaust walls.
Woodworking and Manufacturing Industries

Woodworking and Manufacturing Industries

Woodworking shops and industrial manufacturing plants deal with a unique mix of airborne challenges, combining heavy sealers and stains with lingering shop dust. Our baffle series filters excel in these rugged environments by capturing sticky liquid particulates without plugging from fine wood fibers. This durable design prevents premature static pressure spikes, protecting your exhaust fans and keeping your shop floor cleaner and safer.

Frequently Asked Questions about the accordion filter

Getting the right fit is essential for preventing paint overspray from bypassing your exhaust system. As an experienced manufacturer, we design our accordion filters to be highly adaptable, allowing you to customize them to your specific booth dimensions.

  • Measure the Frame: Calculate the exact height and width of your spray booth filter tracks.
  • Calculate the Stretch: Remember that accordion baffle filters rely on a pleated design. Do not pull the filter completely flat; it needs to maintain its pocketed shape to catch liquid particulates effectively.
  • Cut with Precision: Use a sharp utility knife or heavy-duty shears to cut across the pleated paper. Always cut along the valleys of the pleats for a clean, straight edge.

Proper installation ensures optimal airflow and maximum arrestance efficiency. Follow these steps to secure your exhaust filter media correctly:

  1. Clear the Tracks: Remove old, loaded filters and clean any residual paint buildup from the holding frames.
  2. Orient the Pleats: Position the filter so the pleats run vertically. This allows trapped air-dried coatings and heavy enamels to drain downward rather than sagging the media.
  3. Expand and Fit: Stretch the accordion filter across the booth opening. Insert the edges securely into the top and bottom U-channels.
  4. Secure the Ends: Use retention clips or standard booth fasteners to lock the ends in place, ensuring there are no gaps where overspray could escape.

Running a booth with overloaded filters chokes your airflow and risks compliance violations. Keep an eye on these critical indicators to know when it is time for a replacement:

IndicatorConditionAction Required
Draft Gauge / ManometerPressure drop increases beyond the booth manufacturer’s recommended limit.Replace Immediately
Visual Paint BuildupThe face of the pleated paper is completely coated, and the pockets are full.Replace Immediately
Visible Overspray MistNoticeable paint mist escaping through the exhaust stack or settling back onto finished parts.Check Fit or Replace

Pro Tip: Regular replacement not only protects your exhaust fans and compressor blowers but also ensures your shop stays fully compliant with local environmental laws. If you want to better understand how these stack up against other filtration setups, check out our guide to types of air filters.

Send Your Inquire

Let’s Have A Chat