Earplugs for Pressure Equalization in Flight
Westone occasionally makes the Westone style #47 (DefendEar) for this problem. The Style #47 is an industrial hearing protection device with a high frequency acoustic filter that allows slower pressure equalization due to the restricted pathway through the filter installed in the sound bore of the earplugs. This is similar to the way in which the Earplane functions, in that it resists sudden changes in cabin pressure due to the restricting effect of the filter element. Westone does not make a custom earplug to house the Earplane filters, as the manufacturer describes it as a disposable product meant for only a couple of uses.