Is it okay to throw the mask in the trash can in the temple?

Okay.

The temple is a sacred place, so please do not throw away discarded masks anywhere. Please put them in the designated "waste mask trash can". The temple implements strict garbage classification in the closed trash can for "waste masks only". Please throw away garbage according to categories.

Temple is one of the Buddhist buildings. The temples of Chinese Buddhism are all in Chinese architectural style, and the temples of Tibetan Buddhism are mainly in Chinese architectural style.