Question

which of the following is the frequency for laminar flow hoods to be recertified? every 9 months every 12 months every 6 months every 3 months

Explanation:

Laminar flow hoods are typically recertified every 6 months to ensure they are operating properly and maintaining a sterile environment. This is a common - industry standard in settings such as laboratories and clean - room facilities.

Answer:

C. Every 6 months