Since the outbreak of the new type of coronavirus pneumonia, BBN Health Co., Ltd has urgently invested tens of millions of RMB on the basis of the original two KN95 mask production lines to expand the production capacity of masks to protect the demand for epidemic prevention. At present, BBN Health Co., Ltd has three KN95 mask production lines, the daily production capacity has increased from less than 10,000 to 30,000; the number of disposable flat mask production lines has more than 10, with a daily output of one million.