Question 66

Avoid direct contact with the HEPA filter.

Avoiding direct contact with the HEPA filter is essential when cleaning a horizontal laminar flow hood to prevent damage and ensure the filter continues to function effectively. Maintaining the integrity of the HEPA filter is crucial for the hood's ability to provide a sterile environment.

A) Spray the cleaner directly into the hood.

Spraying the cleaner directly into the hood can lead to contamination of the sterile environment and may not effectively target the surfaces that require cleaning. It is better to apply the cleaner to a cloth first to control the amount used and prevent overspray.

B) Clean the hood sides from bottom to top.

Cleaning from bottom to top is not advisable because it can cause contaminants to fall onto already cleaned surfaces. The best practice is to clean from top to bottom, ensuring that any debris or contaminants are removed in a controlled manner.

C) Use a clean fabric cloth.

While using a clean fabric cloth is important, it is not the best practice in this context. The method of cleaning and the order of operations are more critical to maintaining the cleanliness and functionality of the hood than the type of cloth used.

D) Avoid direct contact with the HEPA filter.

Avoiding direct contact with the HEPA filter is the best practice because it prevents damage to the filter and maintains its filtration efficiency. This action preserves the sterile environment that the hood is designed to provide.

Conclusion

The best practice when cleaning a horizontal laminar flow hood is to avoid direct contact with the HEPA filter, as it protects the filter's integrity and ensures the hood operates effectively. The other options either risk contamination or do not follow the proper cleaning protocols necessary for maintaining a sterile environment.