The Cypress Medical 39-20 is a set of ISOSAFE masks with ear loops. Each box contains 50 blue masks, and each case contains 6 boxes, for a total of 300 masks per case. These masks are designed to provide a secure and comfortable fit for the user, with ear loops for easy wear and removal. The ISOSAFE design ensures a high level of protection against airborne particles and contaminants. Ideal for use in medical facilities, these masks are an essential tool in maintaining a hygienic and safe environment.