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Custom hearing device products do not have IP (Ingress Protection) ratings, only behind-the-ear devices do. For moisture, the highest score a product can receive is an 8, which means it is waterproof. Custom devices between ReSound or Phonak are likely to be similar, with a rating of 7, which means it can be submersed in water for up to 30 min and still work. Because the battery door is not sealed, the custom device cannot be waterproof. If your custom device is submerged in water, it will likely be functional, but you'll want to be sure to throw out... Read more
I am familiar with Eargo and the idea behind it is to allow some ventilation around and through those little tendrils that cover the end of the hearing aid. It's a good theory and certainly may create less surface contact on the skin in the ear canal. As others have noted, your underlying problem may be a skin issue that needs to be treated. The challenge with the Eargo tendrils is that they can harbor infectuous cells from any skin or fungal infection. You'll have to clean those tendrils thoroughly and often in order to prevent recurrence. A better... Read more
This is a great question! I used to practice in Southern California and work with a lot of surfers. I am an amateur surfer myself! There is no hearing aid currently available that's marketed as completely waterproof, so it's best to leave your hearing aids on the beach. Some of the rechargeable hearing aids, like the Signia Cellion, come with an IP-68 rating. IP stands for the International Protection marking, a standard of the International Electrotechnical Commission (IEC). The first digit (6) stands for its resistance to dust, dirt, and sand. The... Read more