The BUFF® Filter Tube perfectly covers the user's nose, mouth, cheeks and neck. When putting on and taking off the BUFF® filter neck gaiter you should do so with the utmost care, to avoid contaminating yourself.
How to put it on, step by step:
Before putting on the neck gaiter, wash your hands thoroughly with soap and water, or disinfect them with antiseptic gel.
Place the filter in the inner pocket of the neck gaiter with clean hands as indicated in the instructions.
Place the neck gaiter on the face making sure to cover the nose and mouth.
Once in place, try not to touch the neck gaiter with your hands while wearing it. If you do, immediately wash your hands with soap and water, or use antiseptic gel.
You can see a step-by-step video of how to put on the neck gaiter here.