Total package price & “ADD TO CART” button are found under the last product. Subscriptions include: REDUCED RATES and FREE SHIPPING on FUTURE SUBSCRIPTION DELIVERIES. WHEN SELECTING RESPIRATOR STYLES & SIZES The larger the respirator one can fit into properly, the more comfort. In general, most men will wear large, where-as most women wear medium. Small sizes usually work for people with a very short distance from the bridge of the nose to the bottom of the chin.