Passengers and cabin crew on board future Aer Lingus services will have to wear face masks or face coverings, according to new plans published by the airline.
However, the rules will not apply to small children or those who cannot wear a face mask for medical reasons. The company said the coverings can be either a reusable cloth mask or a disposable mask.
It is urging customers to wear them from the moment they enter the airport they are leaving from, until they exit the airport they are flying to.
The airline said the measures will apply to anyone travelling on the limited number of services it is currently operating. They will also apply to all Aer Lingus services once business and leisure flying resumes, it said.