Wash the mask and filter (if washable) at 95°F (60°C) before first use and then at least daily after use.
Insert the filter inside the mask paying attention to the correct orientation of the pieces (nose up).
Position the mask over the nose and mouth.
Fold the electrical cable to the shape of the nose.
Position the elastic cords over the ears and adjust length by re-tying if necessary.
Do not give a previously used mask to another person without washing it first.