I love 💘 the way theas 3.0 masks have a dual use! I can use this 3.0 mask for working 💪out. But a super awesome benefit is theas 3.0 Masks can be filtered with the training mask filters!! In like 10-30 seconds you can add the small front face filters right into the front face grill of your mask. I can't say scientifically. But I have remained covid-19 free because I have consistently used the filters in my Training mask 3.0 without ceasing. I believe theas filters have protected me from covid-19!!
And a nice little benefit is the increase tinsel strength of my lungs 🫁 and can now hold my breath for 2 minutes plus!! The filters are a must in in my opinion it perfects the effective and efficient manner in which I use this INCREDIBLE product 👌😎