Designed specifically for use with PARI Nebulizers for children who use masks with their nebulizer therapy. A key feature of this mask is the aerosolized medication enters the front of the mask as opposed to entry from the bottom, this allows the aerosol to ride in on the patient's breath stream and helps minimizes medication waste. The PARI aerosol mask is a good alternative for children of 4 years and up who are unable to utilize a mouthpiece for good deep breaths. You will need to order this mask in addition to your Pari Nebulizer. This mask may also be used with our disposable kits. An Aerosol mask is available for adult use also.