All I wear are your mask with filter. Yes they work and very comfortable. I wear mine 6 hours a day. No problems.
I love Hang face masks. They have great features: adjustable straps, comfortable nose "clip", and removable layers for additional safety.
Love these masks! I bought these for my husband and he really likes them! They are lightweight and you can breathe easily!
Face Mask 3 Pack Black Cotton
This product exceeds expections and keeps my glasses from fogging.