<br><b>1 Dust Face cover (Including 1 Filter) + 6 Filters.Nose to chin length: 5.9 inches ，Nose to rear: 13.9 inches</b> <br> <b>Smooth breathing:Unique ventilation design, excellent permeability, double air breathing valve, air resistance is smaller,smooth breathing</b> <br> <br><b>Unique design：nylon and spandex, very soft and comfortable, light texture, soft texture, fast drying, breathable, comfortable to wear.</b> <br> <br><b>Adjustable Velcro:Velcro neck design ingenious,the size can be adjusted to meet the most head type</b> <br> <br><b>specifications:</b> <br>Type: Dustproof and windproof face cover<br>Size: one size <br>Material:nylon and spandex <br>Function: windproof and dustproof <br>Season: Spring, Summer, Autumn, Winter <br> <br><b>Occasion:</b> Suitable for running, cycling, hiking, skiing, crafts, gardening, anonymity and other outdoor activities, such as tourism,public places. Suitable for children, the elderly, pregnant women, women, men, teenagers, etc. <br> <br><b>The steps about how to replaced the filter:</b> <br>1.Open the face cover to expose the interior of the filter valve. <br>2.According to the OPEN directions on the valve,turn the valve counter(clockwise),to separate the valve. <br>3.Remove the filter. <br>4.Replace the new filter,reverse the above steps,clockwise rotation of the valve,over. <br> <br><b>Packing:</b> <br>1 *Face cover(Included 1 filter ) <br>6* Filters <br> <br><b>Attention: :</b> <br>1.Face cover is washable while filter pads are not, and it is advisable to replace a filter pad after using it for 7 days. <br>2. Please insert filter pad into face cover in the same way as shown in picture before using. <br>3. As different computers display colors differently, the color of the actual item may vary slightly from the above images, thanks for your understanding.