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Equipment Sound Power: air terminal grille
Equipment sound power levels (Lw) by octave band for HVAC and mechanical equipment, used in acoustic analysis per ASHRAE Applications Handbook
| equipment type | Lw 125Hz (dB) | Lw 1kHz (dB) | Lw 250Hz (dB) | Lw 2kHz (dB) | Lw 4kHz (dB) | Lw 500Hz (dB) | Lw 63Hz (dB) | Lw 8kHz (dB) | Lw dBA (dBA) | capacity range | equipment description | location | standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| air terminal grille | 32 | 25 | 30 | 22 | 18 | 28 | 33 | 13 | 30 | 100-1000 CFM | Return air grille | wall | ASHRAE Applications Handbook 2023 Ch.49 |
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