To select the proper filter for your system, one should use?

Using both a filter placement chart and the manufacturer's recommendation is essential for selecting the proper filter for your system because this combination provides a comprehensive understanding of your specific requirements.

The filter placement chart typically offers generalized data on different types of filters, their efficiencies, and appropriate applications based on airflow, size, and contamination levels. This can help you make a well-informed decision about which filter would best fit the physical and operational parameters of your system.

The manufacturer's recommendation is crucial as it includes specific guidance based on the equipment design and performance standards. Manufacturers often conduct thorough testing and have insights into how filters perform when paired with their systems, ensuring optimal functionality and longevity.

Thus, relying solely on one source may not account for all variables that could affect filter performance. Combining both resources enhances the likelihood of choosing the right filter, promoting system efficiency and reliability while also potentially extending the lifespan of both the filter and the equipment it serves.