The Voldyne 4000 Incentive Spirometer is designed to promote deep breathing and strengthen the muscles used during inspiration. With a capacity of up to 4000ml, it provides visual feedback to encourage patients to take slow, sustained breaths for improved lung function. Featuring a built-in handle, low resistance filter, and compact design, this spirometer is a practical tool for post-operative physiotherapy and respiratory care. Its advanced construction ensures ease of use for patients and healthcare professionals alike. Key Features 4000ml volumetric capacity for deep breathing exercises Compact, ergonomic design with integrated handle Low resistance filter for comfortable use Latex-free and non-sterile construction Suitable for post-operative physiotherapy and respiratory training