C21 Chapter Xxi Ingenious Murder

After Tao Yunfaan was sure that someone had sterilized the operation room with formaldehyde, he immediately felt like crying. At the same time, his eyes revealed a faint uneasiness and hatred.

Formaldehyde has strong irritation to eyes, respiratory tract and skin. Contact with formaldehyde vapour causes conjunctivitis, keratitis, rhinitis, bronchitis, etc. Throat spasm, glottic edema, pneumonia