Assistant Laboratory Animal Technician (ALAT) Practice Exam

Which of the following is a method to maintain humidity in animal rooms?

1. Using air conditioning only

2. Using dehumidifiers only

3. Proper ventilation

4. Using both humidifiers and proper ventilation

The correct answer is: Using both humidifiers and proper ventilation

Maintaining humidity in animal rooms is essential for the health and well-being of laboratory animals, as it affects their comfort, behavior, and physiological processes. The best method to achieve the desired humidity levels involves a combination of using both humidifiers and ensuring proper ventilation. Humidifiers introduce moisture into the air, which is vital in maintaining adequate humidity, especially in environments that might otherwise become dry due to climate control systems like air conditioning or inadequate natural humidity. Proper ventilation is equally important; it not only helps in regulating the air quality but also allows for adjustments in humidity levels by facilitating the exchange of air with the surrounding environment. Together, these systems can be calibrated to create an optimal atmosphere within the animal rooms. While the other methods mentioned might contribute to temperature or air quality control, relying only on air conditioning or dehumidifiers can lead to insufficient humidity control. For instance, air conditioning typically reduces humidity and could result in excessively dry conditions without additional moisture being introduced through humidifiers. Conversely, dehumidifiers are designed to remove moisture, which would further lower humidity levels. Proper ventilation, while crucial for airflow and temperature regulation, does not independently address humidity levels. Thus, using both humidifiers and ensuring proper ventilation is the comprehensive approach needed for maintaining suitable humidity