blox N95 (part BLX-9501, medical use) | BloxDirect.com
COMMENTARY: Wear a respirator, not a cloth or surgical mask, to protect against respiratory viruses | CIDRAP
View of Effectiveness of manufactured surgical masks, respirators, and home-made masks in prevention of respiratory infection due to airborne microorganisms | The Southwest Respiratory and Critical Care Chronicles
Prestige Ameritech: ProGear N95 Particulate Filter Respirator and Surg – Armbrust American