💨 Elevate Your Sleep Game with Nispira Filters! Individually sealed for maximum freshness. Change filters weekly for peak performance. Perfectly fits Z1, Z2, and Dreamstation machines. Transform your CPAP experience with optimal humidity! Connect and go—no tools required! Moisture retention Weekly replacement Individually sealed The Nispira HME Heat Moisture Exchanger Filter is an essential inline humidification solution designed for use with Z1, Z2, and Dreamstation CPAP and BiPAP machines. Each pack contains 12 individually sealed filters, ensuring optimal moisture retention and hygiene. With easy installation and a recommended weekly replacement schedule, these filters enhance your sleep therapy experience.