"There are various things we've been trying to do to keep our service. Our information librarians who normally sit at a desk in the entrance to the non-fiction section are now sitting at a table on the stairs.
"The New Zealand Room is now a reading space and an overflow for what non-fiction we've got left."
Ms Best said staff were directing people who had specific books they wanted to find to Mount Maunganui, Greerton or Papamoa libraries, or would find the book at another library around the country using the inter-library loan service.
The books in the sealed off section were undamaged by the mould, Ms Best said.
Olive Stanyer, information librarian document delivery, said the mould and resulting closure of the non-fiction section, had changed her job "quite dramatically".
"Last Friday was really busy. Between 9.30am and 12.45pm we had about 90 queries and were running up and down the stairs finding different things for different people.
"One lady came in and wanted to find a certain section.
"I showed her the books we had on one of the returns trolleys from that section in the New Zealand Room." Namrata Banerjee, information librarian technology, said from December 31 to January 12, library staff had dealt with 644 inquiries.
She said people came to the library with the expectation they could browse books or the internet and were "quite disappointed" to find this was not always possible.
"Ninety-nine per cent of them are quite understanding.
"They know why we are shut and are very supportive.
"We try to give them alternative suggestions about how to get the book they want."
Mrs Banerjee said one man had tried to convince her to go into the sealed section to find the book he wanted and she had to explain it was sealed off from everyone.