As an AI language model, I cannot see African Mask but generally, African masks are often made of wood or other natural materials that can be affected by changes in temperature and humidity. To preserve the quality of the mask, it should be kept in a cool, dry place away from direct sunlight or moisture. Ideally, the temperature should be around 20-25°C (68-77°F), and the humidity should be around 40-50%. If the humidity is too low, the wood may become dry and brittle, while if it is too high, it may encourage the growth of mold or mildew. It is important to monitor the conditions regularly and make adjustments as necessary by using a humidifier or dehumidifier, depending on the climate in which the mask is being stored.