Fantastic fitting Maskit Mask - 3 ply cotton mask with 3 x P M2.5 filters.
Maskit masks are machine or hand washable. The PM 2.5 Filtes are not washable - they are disposable. Tapered at nose and chin to fit to face. Adjustable elastic around ears for a snug fit.
Each mask comes with 3 filters per pack. A pack of 10 filters is also available.