Sistine Chapel ceiling despair or jubilation. Among the artists in whose work can be seen the direct influence of Michelangelo are Pontormo, Andrea del Sarto, Correggio, Tintoretto, Annibale Carracci, Paolo Veronese and El Greco. In January 2007, it was claimed that as many as 10,000 visitors passed through the Vatican Museums in a day and that the ceiling of the Sistine Chapel is the biggest attraction. The Vatican, anxious at the possibility that the newly restored frescoes will suffer damage, announced plans to reduce visiting hours and raise the price in an attempt to discourage visitors. Five hundred years earlier Vasari had said
Restoration of the Sistine Chapel frescoes have been predicted by previous restorers. One of the major dangers to the frescoes is automotive exhaust, and they are also vulnerable to the effects of the crowds of tourists that pass through the chapel every day, bringing with them heat, humidity, dust and bacteria (the latter of which can biodegrade paints and pigments). The clean plaster surfaces are more in danger from these destructive elements than they were when they were covered with a layer of smoky wax. Previously, the Sistine Chapel's only ventilation was from its windows in the upper level of the walls. To prevent exhaust fumes