Question

what is the key difference between a vertical and horizontal laminar flow hood?
noise level produced
type of filters used
energy consumption
direction of air flow
question 61
1 point
drug_classification
which type of otc medication is typically kept behind the pharmacy counter?
natural health products
skin creams
nasal decongestants

Explanation:

1. For the first question about laminar - flow hoods: The terms "vertical" and "horizontal" refer to the direction of air flow in laminar flow hoods. Other factors like noise level, filter type, and energy consumption can vary but are not the key differentiators based on the naming convention.
2. For the second question about OTC medications: Nasal decongestants often contain ingredients that can be misused, so they are typically kept behind the pharmacy counter for better control and to provide advice to customers.

Answer:

1. Direction of air flow
2. Nasal decongestants