Travel: Athletes who travel on airplanes often experience discomfort. Some become ill.  The Honeycomb Mask with activated carbon filters recycled air. The filtration reduces irritation of nasal passages and of the eustachian tube to the middle ear, thus minimizing a build up of pressure and ear pain.  Customers who used to be ill for a week or more after flying now report they wear the I Can Breathe! Honeycomb Mask with filter, don't get sick so enjoy their travel.

To humidify dry air on long flights, take along the Cold Weather Mask to wear once the cabin gets dry.  Wash and rinse, then hand wring the mask and wear it damp.  The polar fleece is spongy so stays damp, humidifying as well as filtering the air you breathe.  When it dries out, wash and wring the mask again.  Both the fleece and the silk act as filters of particles.  Before descent, change to the Honeycomb Mask.

Exercising: For exertion in urban air pollution combined with high humidity and heat, runners and bicyclists may want to have a second filter along in case the first becomes saturated.  After exercising, hang the filters to dry  before reusing.  For indoor or outdoor exercise, the Silk Comfort Mask is the lightest mask and clears the air of particles, such as pollen, dust and larger molds.