The ‘PART SPIROMETER AIR FILTER 3U 13MM THICK FSENSORMEDICS – 464441’ is a high-quality, precision-engineered air filter designed specifically for use with Sensormedics spirometers. This air filter is 13mm thick and falls under the 3U size category, ensuring optimal performance and reliability of your spirometry equipment. Its main function is to filter the air efficiently, thereby maintaining the integrity and accuracy of the spirometer readings. This product is sold individually, making it a cost-effective choice for healthcare providers who require a durable and efficient air filter for their Sensormedics spirometers. This product is perfect for ensuring the longevity and functionality of your spirometry equipment, providing accurate and reliable results every time.