designed for people with mild to moderate hearing loss but do not offer a permanent solution to hearing loss. Sometimes billed as "one size fits all," disposable hearing aids actually fit about 80% of adult male ears and about 60% of adult female ears. Most of the disposable aids have a very soft mushroom like cap that fits about halfway into the ear canal, just reaching the bony part of the ear canal. When the aid fits properly, an acoustic seal is obtained which minimizes feedback. Disposable hearing devices come with a number of possible prescriptions, which a hearing health care professional can select according to a patient's hearing loss. Hearing loss must be accurately assessed prior to a hearing health care professional choosing the device; otherwise the wrong 'prescription' may be selected. The disposable hearing device lasts for 30 to 40 days at which time the encapsulated battery expires. At this point, the user simply disposes of the old one and purchases a new replacement device.
Advantages of the disposable hearing aids
You can have a hearing device immediately after a hearing test. There is no waiting period for manufacturing the device. It does not require battery changing. Because of their short life expectancy, mechanical and electrical breakdown or blockage with earwax is not as likely, and if it does occur, the device can either be returned to the audiologist for a full refund or thrown out and replaced. No additional costs for battery replacements, repair and maintenance, or insurance.
Disadvantages of the disposable hearing aids
With the advantages disposable hearing aids also have some disadvantages. Disposable hearing aids have a short life expectancy. They do not offer a custom fit. Acoustic programming is not nearly as flexible as programmable and digital hearing aids. They are not a long-term solution to hearing loss. By the time one replaces the disposable hearing instrument once a month for two years one would have already paid for the hearing instrument with a life expectancy.

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