Much more convenient to purchase
Written By: Vint 3, Henderson, NV. 3/23/2014
These products are the same products supplied by Pulmonary Companies, but less expensive to purchase, as well as more convenient to purchase from the comfort of home.
Comfortable sometimes leaky
Written By: PlanoSleeper, TX 10/1/2013
Generally a good seal, fairly quiet too. As they age skin oils reduce elasticity, so periodic repositioning is required or they leak. Expect 90+ days of use, with quick delivery of replacements!