The Bloomfield BLM2I-302579 fryer pre-filter hood capture airborne grease, particles, and contaminants to support cleaner ventilation system operation. Designed in a universal 16\" x 20\" x 2\" size, this filter is installed within a compatible hood system where it acts as the first stage of filtration. It works by trapping larger grease particles and debris from cooking exhaust before they reach downstream filters or ventilation components. By reducing the buildup of contaminants, the pre-filter can help maintain airflow efficiency and support routine hood maintenance. Suitable for commercial kitchen environments, it contributes to cleaner operation, improved filtration performance, and the protection of ventilation system components.