Plain Blue 5 Layer Filter Cotton Mask by Real Hand come with 5 layer filter as suggested in title, but the advantage of 5 layer filter is to keep you safe, it 5 layer filters the air that you inhale removes the germs and bacteria which keeps you fit. It also, give a comfort in wearing around the ears. A decent colour which combines with you dressing everytime. That's why we say protection with style is a perfect way to cheer yourself. It's colour it mostly loved by all people.