Dust prevention is also very important. There is a lot of microbial food in the dust.
Ultraviolet protection is also a very important aspect, which leads to the fading of ancient books and the brittleness of paper. The measures are simple, anti-ultraviolet curtains
In addition, many ancient books are also preserved in ancient buildings and cannot be moved or changed. The original environment is prone to fire and water leakage, which is also very harmful. For example, the National Library of China is near Beihai, which is not unreasonable.
Even if the new National Library is built, it will take half a year to observe whether there are hidden dangers of fire prevention and water leakage.
The national map ancient books warehouse is kept at a constant temperature of 16-20 degrees (foreign standard is 18 degrees), with a humidity of 50%, which is light-proof, insect-repellent, waterproof and preserved.
There are other specific protection measures for important ancient books such as Sikuquanshu.
Digitization of ancient books is the ultimate way to protect ancient books.