Here’s how the regular elastic Mask should fit….
The sides would be flat against your face along with the top and bottom of the mask.
With the T-shirt elastic ties, tie the bottom in a loose knot till the top is tied then you can untie and retie to tighten.
With the two piece T-shirt Elastic you have to option of tying it in Ear loops. First make loops and tie them in a bow. These are just rough estimates for later.
Once you have the mask on, untie and retie the loops to fit the mask closer and tighter to your face. Now you can slip on and off the mask without pulling it over your head or if you wear glasses, not taking them off first. Same with tying your mask at the top and bottom of your head.