What is the main drawback of cartridge respirators?

The main drawback of cartridge respirators is the potential for leakage around the face shield. A proper fit is essential for respirators to function effectively, as they are designed to filter out contaminants from the air. If there is any leakage due to improper sealing against the face, the effectiveness of the respirator is compromised, allowing unfiltered air to enter. This leakage can occur due to various factors, such as the shape of the user's face, facial hair, or improper adjustment of the straps. Therefore, ensuring a proper fit is critical for the safety and health of the person using the respirator, as it directly impacts the protection level provided against harmful substances in the environment.

While discomfort, the expense of the cartridge, and difficulty in breathing are valid considerations, they do not directly affect the primary function of the cartridge respirator as critically as leakage issues do. Discomfort can be managed with better-fitting models, expenses can be justified with the necessity of safety, and advances in design have often improved breathability in respirators. However, if a respirator does not seal well, it fails to provide adequate protection regardless of other factors.