This reusable gadget creates more breathing space to help you breathe easier, while keeping the internal hygiene of the mask. It is uniquely designed according to the curve of the human face. It doesn’t get your glasses foggy.
Can be boiled and sterilized. Food-grade silicone material is resistant to high temperature 230 ℃, wear-resistant, durable and flexible.
Material: Food Grade Perkin Silicone