For OP, with mild to moderate hearing loss, I think the answer is that it’s not possible with current technology. Even with mics muted and a closed fit, somebody with a mild to moderate loss will be able to hear loud noises with hearing aid microphones turned off (muted). An open fit, as many people with such loss have will make things worse. Hearing aids do not provide the kind of ANC that noise cancelling headphones do.
I’m guessing best option for somebody with mild to moderate loss is just to wear the noise cancelling headphones for reading. Could be worn over hearing aids or without hearing aids depending on comfort.
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