👉 Respirators are medical devices used to protect individuals from inhaling toxic or harmful gases, particles, or other substances. They are designed to provide a breathable environment for breathing, allowing air to pass through the mouth and nose without being blocked by foreign objects or substances. Respirators can be classified into two main types: full-face respirators (FFR) and partial-face respirators (PFRR). The FFR is typically worn over the mouth and nose, while the PFR includes a