Adding one our face mask filter in your face mask, the protection pad will make you feel more secure when in outdoor or in other dusty or haze position, as our mask pad can reduce the risk of breathing in gases, smells, pollen, smoke, haze, dust and other harmful particles effectively. Feature - Color: Blue. - Material: Non-woven fabric. - Size: About 11x11x2cm. - This mask filter pad can reduce the risk of breathing in gases, smells, pollen, smoke, haze, dust and other harmful particles effectively. - It can give you protection and it will make you feel more secure when in outdoor or in other dusty or haze position. - You can use it to replace your mask inside, this pad is easy nd convenient to ues. - Great mask accessory for you and your family.