MASKS • Interior pocket to insert filter?• Metal ring at nose level for better adjustment ?• Adjustable elastic for better fit? • Washable & reusable? • 100% polyester / Internal layer : 100% cotton. • Machine wash gentle cycle and hang to dry ?• Non-medical use ?• Wash before use ?• Wash your hands before wearing your mask and after removing it • Keep your mask in a clean, contained space when you are not using it?• Universal kid size • Meet airline travel requirements?• Kids under the age of 8 might need adult assistance to wear the mask properly? • Not for kids under the age of 2 ?FILTER PM2.5 ?• Made of 5 layers of protection • Best protection after the N95 mask • Stop 65% of the particles (Nitrogen dioxide, dust & micro-particle)?• Good for 3 days if worn full time, otherwise change after 5 days? This mask is not manufactured to medical use standards and is not made for medical use. Wearing this mask is not a safe alternative to recommended social distancing measures. The user is strongly urged to follow all recommendations of relevant public health authorities. ?* Final sale - For hygienic reasons, this product can't be returned.