My Origami masks are ultra thin but still giving 85% protection.  
They are fabulously light and comfy for when the weather gets warmer, with plenty of room to breath so ideal for outside exercise or in the gym. They have an optional nose clip that upgrades the mask to 95% filtration. Simply peel off the paper from the back of the clip and carefully place it on the centre of the nose section on the outer edge near the top and shape it around your nose when you put the mask on. If you wear eye glasses then you will probably need the nose clip to stop your glasses fogging up, but try the mask first without. Depending on the different shape of eye glasses not all fog up with this mask.
They are fully washable and reusable, with adjustable ear loops, permanent medical grade filter.
 
Size: Small (fits petite face)
Size: Medium (fits medium to large face)