Travelers who need to borrow a stroller, wheelchair or hearing aid should first check which airports support advance booking. Korea Airports Corporation's centralized service accepts online equipment reservations at Gimpo, Gimhae and Jeju airports. Eligibility is strollers for travelers with infants under 24 months, wheelchairs for people with disabilities, and hearing aids for hearing-impaired passengers; a caregiver may reserve certain items on their behalf. Apply no later than one day before the intended use, then present your reservation and identification at the airport information desk. Equipment can be used for up to three hours and must be returned to recover the deposited ID. Use is limited to public halls before security screening. Same-day walk-ins may be possible but stock is not guaranteed; other airports offer walk-in loans only. Check local desk arrangements and available inventory.