甲醛是一种常见的有害气体，广泛存在于家居环境中。Formaldehyde is a common harmful gas found widely in home environments.Formaldehyde is a hazardous substance frequently encountered 除甲醛 in residential settings. 暴露于高浓度的甲醛会导致各种健康问题，例如呼吸系统疾病、眼刺激和头痛。Exposu