Overview: The document provides technical specifications for Camfil's Absolute™ 1FRSI HEPA filters, designed for high-temperature applications. These filters are part of a continuous improvement program, and specifications may change without notice.

Specifications: The Absolute™ 1FRSI filters are HEPA filters with a stainless steel frame and silicon HT gasket. They use glass fibre media and aluminium separators, sealed with silicon HT. The filters have an efficiency of ≥99.97% at 0.3μm and ≥99.95% at MPPS, measured at 20ºC with DEHS. They are temperature resistant up to 250ºC and can handle 100% relative humidity.

Performance: The filters maintain constant efficiency and high mechanical strength, with a recommended final pressure drop of 500 Pa. They are certified under EN 1822 standards.

Model Variations: The document lists various models with different dimensions, air flow rates, pressure drops, and weights. For example, the 1FRSI-25-1SIHT model has dimensions of 203x203x78 mm, an air flow of 50 m3/h, and a weight of 2.5 kg. The largest model, 1FRSI-1250-1SIHT, measures 762x610x292 mm, supports an air flow of 2500 m3/h, and weighs 21.5 kg.

Installation Options: Filters are available with different gasket configurations: upstream, downstream, both sides, or without a gasket. Custom dimensions can be requested.

Recommendations: Users are advised to follow installation and assembly instructions carefully to ensure optimal performance.