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Types |
Key Features |
Applicable Scenarios |
Pros |
Cons |
|
Open |
Designed with openings or vent holes, allowing natural air and sound to enter the ear canal without fully sealing it. |
Suitable for people with mild to moderate hearing loss who want to retain natural hearing, such as first-time wearers or users who are sensitive to the occlusion feeling. |
Reduces the "blocked ear" sensation (occlusion effect), comfortable to wear, well-ventilated, less likely to cause sweating, and ideal for everyday conversations. |
Poor sealing performance and easily affected by environmental noise, not suitable for severe hearing loss, as it cannot provide sufficient amplification. |
|
Tulip |
Tulip-shaped with multiple soft petals, providing a medium seal, it has a vented design but fits slightly tighter than an open fit. |
Suitable for moderate hearing loss and for users who need a balance between sealing and comfort, such as office workers or people who spend time outdoors. |
Offers a better seal than open domes, reduces whistling feedback, is highly comfortable, easy to insert, and provides moderate ventilation. |
Not as sealed as closed domes, with average noise isolation, some users may need time to get used to the petal design. |
|
Closed |
Fully seals the ear canal with no vent holes, providing a high level of isolation. |
Suitable for moderate to severe hearing loss, noisy environments (such as factories or busy city streets), or users who need clear speech. |
Excellent sealing improves amplification and clarity, effectively blocks noise, and reduces feedback whistling. |
May cause a plugged/blocked-ear feeling, poor ventilation, and can trap earwax or sweat, making long-term wear uncomfortable. |
|
Power |
An enhanced version of the closed type, usually larger and thicker, providing maximum sealing and support, commonly used for power hearing aids. |
Suitable for severe to profound hearing loss, users who need strong amplification, or those with large or unusually shaped ear canals. |
Maximizes sound transmission and stability, ideal for high-power hearing aids, reduces sound leakage, and is highly durable. |
Least comfortable, may cause pressure/discomfort, has the poorest ventilation, requires frequent cleaning, and is not suitable for mild hearing loss. |
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