Among its facilities, the 285sq metre development boasts free wifi throughout, a work area, an extensive choice of food and a full complimentary bar.The lounge also features new 'air' print technology enabling customers to publish from their mobile devices, and seating for over 80 people.Offering panoramic views of the airfield, the lounge is located airside and adjacent to Door A for direct boarding on to the aircraft.The refurbishment forms part of the airline's massive £5bn investment programme to make travelling more comfortable both in the air and on the ground.British Airways relaunched services between Northern Ireland and London Heathrow in July 2012 after an 11-year gap.Willie Walsh, chief executive of British Airways' parent company, International Airlines Group, officially opened the lounge on Tuesday, saying that it demonstrated British Airways' commitment to its customers from Northern Ireland."British Airways' new lounge represents a significant investment and shows the importance of the Belfast operation within our global network. We want to continue to lead the way in customer service excellence and our lounges play a critical role in delivering a premium experience to our customers," Mr Walsh said."The Belfast City to London Heathrow route remains a vital artery for the flow of business and commerce and is essential to sustain and grow the local economy."Enterprise Minister Arlene Foster said: "The return of British Airways to Northern Ireland has been a great success, both for the airline and for Northern Ireland."The British Airways London Heathrow service not only provides essential access to London, it also provides Northern Ireland with access to key business and tourism markets around the world."The DUP minster said that the airline is to be commended for investing in the lounge, adding that it was "an investment which sends a clear and positive message about BA's commitment to Northern Ireland."