The SDI Diagnostics PulmoGuard II PFT Filter Kits with The Klip are high-efficiency, single-use respiratory safety packages designed to optimize clinical workflow during pulmonary function testing (PFT). Engineered by SDI Diagnostics, this clinical convenience kit combines a pleated electrostatic barrier filter with a matching nasal clamp inside a single hygienic wrapper, eliminating the need to source or open separate accessory packs.