These breathable vented masks are made of cotton, with a slot for a filter. (Filter not included).  Perfect for travel, cold and flu season, yard work, and deep cleaning. 
SIZE  
Adjustable straps 
STAND OUT FEATURES 
Breathable and vented 
Slot for filter 
Filter not included
DETAILS
100% Cotton 
Pocket opening to add a filter
Filter options can include additional fabric layers (felt, flannel, cotton) PM2.5 filters, disposable HEPA filters, coffee filters, and vacuum filters are all quite effective).
Please remember to change the filters between each use