3D Fashion Black Mask. *Nano-silver has become one of the most widely used nano-materials in consumer products because of long standing proven research of its antimicrobial properties. Silver nano-particles work against bacteria only in ion form — there must be a loss of an electron to become positively charged. Silver ions pierce through the external surfaces of the cells and damage their DNA, as well as the protein structure, halting their metabolism and reproduction until they die. After the cells have become inactive, silver ions leave but continue to act against microbes, delivering a constant antimicrobial performance with no toxicity or side effects. Natural Silver’s antibacterial properties have a proven long-standing reputation as an effective way to resist and kill more than 650 kinds of harmful bacteria. New soft, comfortable and breathable fashion mask. Washable, reusable and stretchable fabric mouth cover. 3 Dimensional design: better fits facial contour. Protect you from dust, pollution, passive smoking, etc. Suitable for various activities including sports, traveling, daily use, etc Material: Polyester + Spandex One Size: fits most adults (Approximately 12 inches X 5 inches) Imported It only needs to be gently rubbed to wash it and air dry it. Detergent is not recommended. Don't bleach, iron or dry the mask with a dryer as it may destroy the fabric. Due to current hygiene issues, we do not accept returns for the mask. *Please bear in mind that those masks do not block all the bacteria. This mask does not block the current virus. |