F64 Series Intake Air Filter SilencersStoddard Silencers' F64 Series Intake Air Filter Silencers are engineered to protect blowers and compressors from the particulate contamination that causes premature wear. While most competitors filter 98% of 10-micron particles, Stoddard's F64 uses a filter element that arrests 99% of 1-micron particles — a significant advantage that keeps internals cleaner and extends equipment life.F64 Data SheetAir Intake Filter Selection SheetApplications Blower inlet protection Compressor inlet protection Engine air intake filtration Wastewater treatment blowers Industrial air handling equipment Key Features 99% filtration efficiency on 1-micron particles (vs. competitor standard of 98% on 10-micron) 16 to 20 dB noise reduction Mounts directly on inlet of engine, blower, or compressor Paper filter media for high efficiency filtration Filter element can be cleaned by rapping gently or with compressed air (75 PSIG max, reverse flow) Optional Model A40-108 Pressure Drop Indicator available Filter element must be replaced when differential pressure exceeds 15" water column Specifications Series: F64 Models: F64-1, F64-1.5, F64-2, F64-2.5, F64-3, F64-4 (port size in inches) Noise Reduction: 16–20 dB Max differential pressure: 15" water column Filter media: Paper, 99% efficiency at 1 micron Mounting: Direct inlet mount