Even slight hearing losses of 16-25 dB HL may benefit from hearing aids.

Evidence

Regardless, there is no doubt that hearing aids are beneficial to patients with hearing loss. Almost everyone who has a mild or greater hearing loss should wear one, and we might even be able to argue that people with slight hearing losses (thresholds of 16–25 dB HL) could benefit from hearing aids. Hearing aids compensate for the most important auditory deficit, higher auditory thresholds, by providing amplification. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1713