Yes of course. Individual parts for the Eson Nasal cushion CPAP mask can be purchased on our website. You can purchase the Eson Nasal cushion CPAP mask silicone seal/cushion, the Simplus Full Face CPAP mask headgear and the Eson Nasal cushion CPAP mask diffuser filters. The silicone seal/cushion and headgear, are available to purchase in a number of sizes. Information regarding both products can be found on their respective individual product pages here.