The Suggest Retail Price given by the Department of Trade and Industries (DTI) is Php 28 per piece Disposable Black protective mask Color: black/blue Quantity: 50pcs/package 1. 3 layers of protection: non-woven outer layer + filter paper layer + skin friendly non-woven inner layer. Breathable and comfortable, low breathing resistance. 2. The strip of nose bridge is adjustable, hides the side of nose bridge. More suitable for all face types. 3. High elastic flat earloops. Does not strain the ears. 4. Inner layer: skin friendly non-woven fabric. Soft and comfortable to reduce the possibility of skin allergies. 5. Physical ultrasonic welding, densification of welding points, strong and durable, fine workmanship.