Not bad, can breath easily, have round face, fit is good, elastic seems adequate. have been sewing
1/4" white stretch elastic bands on my masks when the rubber snaps.
Have been using 3 M mask with respirator. I alternate. Pleased with purchase.
Do not use subways,or go in crowds, or work , use just for supermarket, stores, bldg entry and elevators where I ride solo..so not a one time use. Do not use for walking in streets, parks, open air, just enclosed environment.