There are different textures to earmolds, some are solid, and others are soft or spongy. There are also varieties in styles of earmolds, the most common being full and half shell. Full shells are generally used to protect against high-level noise exposure, while half shell styles aid in protecting against mid-level noise contact.
Custom Earmolds & Earplugs
Hearing protection can help prevent NIHL. Off-the-shelf earplugs can offer some protection from noise exposure while custom earmolds and earplugs offer maximum protection because they’re designed specifically for each individual ear canal.
Why hearing protection? Noises within an environment are measured in two ways, the intensity of sound (decibels or dB) and frequency (Hertz or Hz), which can both attribute to NIHL. The closer a sound gets to 85 dB, the more it can affect hearing negatively. For example, lawnmowers, truck traffic, chainsaws, snowmobiles, and rock concerts all produce noise way above the 85-dB threshold. Additionally, frequency is a factor in NIHL, generally occurring at a pitch between 2000-4000 Hz. The higher the pitch of the sound, the higher the frequency, and the more likely to affect hearing. Duration matters as well; the longer the noise exposure, the more damaging it can be to healthy hearing.