Overview
The AAF American AirFilters AstroCel II 905-251-521 is a low-pressure drop minipleat HEPA/ULPA terminal filter engineered for demanding operating conditions in critical applications. The AstroCel II minipleat filter reduces overall operating costs by using the lowest-resistance fiberglass laminar flow HEPA/ULPA media on the market, and provides high-performance protection for cleanrooms and other critical environments. This filter combines compact design with industry-leading efficiency to minimize energy consumption and ownership costs.
Key Features
- AAF Flanders’ mini-pleat AstroCel II filters are ideal for demanding operating conditions in critical applications, with longer service life and lower energy consumption meaning fewer change-outs and lower operating costs.
- Available in depths of 2″, 3″and 4″ in various constructions with media ribbon or hot melt separators.
- Efficiencies from 99.99% on 0.3 micrometer to 99.9995% on 0.1 – 0.2 micrometer particles.
- Available in gasket, gel seal, and knife-edge designs.
- Individual factory testing ensures each filter performs at or better specifications.
Technical Specifications
The AstroCel II 905-251-521 is built to exacting standards for controlled environments. Verify exact dimensions, depths, and efficiency ratings from the manufacturer datasheet corresponding to your specific model configuration (29A87A2P0H0). Each letter and number in the AAF part number corresponds with specific hardware, efficiency, capacity/pack style, frame material, frame style, sealant, gasket material, gasket location, face guard material, face guard location, filter face size and filter depth.
Typical Applications
- Pharmaceutical cleanroom facilities
- Semiconductor manufacturing and data centers
- Hospital isolation rooms and sterile environments
- Food and beverage processing
- Research laboratories and testing facilities
- Controlled contamination environments requiring 99.99% efficiency or higher
Compatibility & Replacements
Compatible With
- AAF cleanroom air handling units and HVAC systems
- Critical environment ventilation systems requiring HEPA/ULPA filtration
- Mini-pleat filter housings accepting standard filter frame sizes
- Cleanroom maintenance protocols per IEST standards
Replaces / Drop-In Replacement For
The AAF 905-251-521 is a specific configuration within the AstroCel II product family. To confirm whether this unit directly replaces a different model number, consult the AAF Flanders technical specifications or contact your system integrator with your original filter part number and model code (29A87A2P0H0).
Works With
- AAF Flanders cleanroom HVAC design and specification tools
- IEST (Institute of Environmental Sciences and Technology) test protocols and certification
- ASME standards for filter performance validation
- FRP (Fiberglass Reinforced Plastic) and other compatible frame materials
