The DNA MER-0194 air filter is a high-flow filter designed to fit in the factory airbox. It is washable and reusable, and is designed to increase horsepower and acceleration while filtering the air.
- Type: High-flow air filter
- Manufacturer: DNA Filters
- Part number: A6540940004
- Compatibility: Mercedes-Benz E-Class W213, E 450 (2020–2023)
- Model years: 2016–2023
- Features: Washable, reusable