Are kangaroo masks and Lionel masks formal? Which is better?

Kangaroo masks and Lionel masks are very formal. Nice kangaroo mask. Kangaroo mask is produced by Du Ya Industrial Co., Ltd., which is a professional manufacturer of medical devices. There are many kinds of masks, including medical protective masks, medical surgical masks and medical KN-95 masks. Nolan mask meets the national standards and can block, filter and prevent small particles of impurities and pathogens such as bacteria and viruses. According to the statistics of many spot checks by national and local quality supervision departments, the qualified rate of kangaroo doctors' masks is high and the quality control is stable.