Industrial Finishing Spray Paint Booths – Reverse Air Flow

Marathon’s Reverse Air Flow Series spray booths are designed to be an efficient production finishing solution. The airflow is horizontal (crossflow), but the air flows from the rear of the booth to the front. This booth type can be ordered with a Spray & Cure heater or without.

Automotive Reverse Air Flow Breakout

The Reverse Air Flow Spray Paint Booths are the simplest booths we make, and is one of our most popular styles. The air enters through the front doors, which have filters built into them, and travels horizontally through the booth.

The air exits the booth through the rear exhaust filter plenum, and finally out the back of the booth. This basic design is very popular for it’s simplicity, versatility and economy. If you are considering this design, you must keep in mind that this design cannot have a Spray & Cure heater added as an option. This reverse air flow industrial paint booth model can be any size you need, and is very easy to maintain.

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  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show
  • Automotive Reverse Air Flow Slide Show

The Reverse Air Flow “RAF Series” Spray Booth
This booth is designed so the air enters through the back wall mounted intake filters moving from the back of the spray booth forward while enveloping the product with clean air. Over spray from the painting process is then captured in the exhaust filters located on both side of the front doors of the spray booth.

Marathon Finishing Systems offers a full line of paint booths. Marathon designs and manufactures our entire line of spray booths to meet today’s demanding paint technology. Whether you are spraying solvent-based product (paint), waterborne product only, or a combination of solvent and water borne product, we have the right solution for your application. Our team will help you choose the right spray booth package for your application and facility. We can also custom design a specialized system, based on your specific requirements. In fact, most of the systems built and installed by Marathon Finishing Systems are custom engineered for our customers.

If you are looking for a booth specifically engineered for the task of cars, small or medium sized trucks, motorcycles or ATV’s Marathon Finishing Systems will design, manufacture, deliver, install, and then train your staff to properly operate and maintain the complete system. Or if you choose, you can also install the RAF spray booth yourself with our installation instructions.

Why choose Marathon over our competition?

Here are just a few reasons why:

1. Our spray booths comply with all national (NFPA 33) environmental, fire, and safety codes.

2. Marathon’s spray booths are “Waterborne” ready or always upgradable.

3. Our booths are all Nut & Bolt type construction. No zip (sheet metal) screws!

4. It’s all about the lights! We deisgn our all of our booths with horizontal lighting fixtures (where possible), to help eliminate shadows.

5. We use only “Inspection Grade” LDPI, Inc. brand light fixtures made in the U.S.A. for spray booth applications.

6. Our Spray & Cure heat systems are manufactured in the U.S.A. Energy Efficient and “LISTED” for compliance.

7. All of Marathons products are manufactured with “Top Brand Name” components, made in the U.S.A.


Marathon sets the Benchmark every year with new product releases and smart booth designs, all for an honest price! This is what you can expect from Marathon Finishing Systems.

Intake, heated booth:
Outside air is filtered twice, once as it enters through the air make up unit located at the rear of the booth, and again as it passes through the intake plenum (shown in green) filters. In this example, this booth is equipped with a Spray & Cure heating unit.
Heated Reverse Air Flow Diagram
Intake, non heated booth: The air is filtered once, through the rear intake filter wall before entering the work area.
Non Heated Reverse Air Flow Diagram
Exhaust: Exhaust: The filtered air travels horizontally across the length of the booth (crossflow). Finally, the air is filtered of overspray and particulates by the exhaust filters before exiting the booth. Marathon uses standard size intake and exhaust filter media, readily available from most paint and refinishing suppliers.