Check the listing for details. Interspiro Spiromatic Breathing Valve. Condition: Used. Listed at 125.00 USD. This Interspiro Spiromatic Breathing Valve is a high-quality product that ensures proper airflow and breathing while wearing a mask or respirator. It is designed with the utmost care and precision to provide maximum comfort and safety to the user. Whether you work in a hazardous environment or need protection in your daily life, this breathing valve is a great addition to your protective equipment. With a focus on quality and reliability, this breathing valve is made by Interspiro, a trusted brand in the field of masks and respirators. It is suitable for use in a range of settings, including facility maintenance, safety, and industrial applications. Invest in this reliable breathing valve today to ensure the safety and protection of yourself and those around you.