Moisture, body secretions and cerumen can severely impair the function of rechargeable hearing aids and lead to failure. Daily maintenance and care is therefore essential. The new dry-cap uv 3® is the first rechargeable electronic drying cap for all hearing aids. Its smart design based on the golden ratio is optimized in shape and size to fit all hearing aid charging stations. It uniquely combines perfect drying by a fan, gentle hygiene by UV-C light that eliminates up to 99.9% of all viruses, bacteria and fungi within 2 minutes, and an integrated LiPo battery for wireless use.