Gas Fitter Practice Test

How many times should disposable filters generally be cleaned before being replaced?

1. One time

2. Two times

3. Three times

4. Never

The correct answer is: Never

Disposable filters are designed for one-time use and are not intended to be cleaned or reused. Cleaning a disposable filter can compromise its structure, effectiveness, and ability to properly filter out contaminants. When a disposable filter becomes dirty or clogged, the correct and safe action is to replace it with a new one to ensure optimal performance and maintain system efficiency. Continued use of a filter beyond its intended capacity can lead to reduced air quality and increased strain on the system it is part of. Therefore, the idea of cleaning a disposable filter is not only impractical but also counterproductive to its purpose.