When cleaning a cleanroom, what is the recommended order?

The recommended order for cleaning a cleanroom is to start from the cleanest areas and move towards the dirtiest, while also following a top-to-bottom approach. This method is essential for maintaining a sterile environment, as it minimizes the risk of contaminants falling from higher, cleaner surfaces onto those that are lower and potentially dirtier.

By cleaning the upper surfaces first, you ensure that any dust or particles dislodged during the cleaning process will fall onto the surfaces that will be cleaned afterward. This systematic approach is crucial in controlled environments, such as cleanrooms in pharmaceuticals or biotechnology, where even minor contamination can compromise product integrity and safety.

Cleaning from the cleanest to the dirtiest also helps prioritize areas that require more rigorous attention, ensuring that the overall cleanliness level is effectively maintained. By adhering to this logic in cleanroom protocols, facilities can achieve higher standards of cleanliness and operational efficiency.