What is the main drawback of cartridge respirators?

The main drawback of cartridge respirators is the potential for leakage around the face shield. This issue can compromise the effectiveness of the respirator, as it allows unfiltered air to enter. Proper fit is crucial for any respirator to ensure it protects the wearer from harmful airborne contaminants. If there is leakage due to improper sizing or adjustment, the respirator will not function as intended, increasing health risks.

While discomfort, expense of cartridges, and difficulty in breathing can be concerns associated with cartridge respirators, they are not as critical as the issue of leakage. Discomfort may lead to a shorter duration of use, but if the fit is correct, discomfort can often be managed. The expense of cartridges is a factor in the overall cost of using these respirators, but it does not affect their functionality directly. Difficulty in breathing can occur when filters are loaded or when the respirator does not fit well, but again, these are secondary to the fundamental issue of ensuring that there are no leaks that could allow contaminants in. Thus, the potential for leakage is the primary concern with cartridge respirators.