The HF4 Wax Filters protect your hearing aids from becoming blocked by condensation, earwax, or debris. The HF4 filters feature an extended, industry-leading usage time that prolongs the need for frequent filter replacements.

Maintain optimal speech clarity and reliability from your hearing aid by replacing the HF4 black wax guard filters every month, or when your hearing aid is blocked and stops working. Replacing HF4 wax filters routinely allows the speaker opening of your hearing aid to breathe, reducing the likelihood of repairs caused by built-up condensation trapped inside your hearing aid. 


By purchasing this, you agree to the following:
- I understand that the seller cannot be held responsible for any damage to hearing aids during the replacement process.
- I have made sure that I am ordering the correct item and understand that it cannot be returned.
- I am not receiving medical advice by making this purchase.