Cubicles and Filter Cabinets

To enhance the protection of the animals inside a facility, all animals may be placed behind a glass wall in a number of built-in boxes containing only a limited number of cages. Such "boxes" are called cubicles (Figure 11.8.) Ventilation inlets and outlets are placed inside each cubicle. The advantages of cubicles are that they reduce spread of infection among individual animals as well as the spread of allergens in the room.

As an alternative to a cubicle, which is a stationary part of an animal unit, a transportable filter cabinet may be used (Figure 11.9). This is a closed cabinet supplied with its own ventilation motor or individually plugged into the central ventilation. These cabinets should imply the same advantages as cubicles in relation to reduced spread of infections and allergens. If they are supplied with their own

Figure 11.8 Animals placed behind glass walls in so-called cubicles (University of Washington, Photo Gavin Sisk).
Figure 11.9 A ventilated cabinet for maintenance of laboratory animals (Scanbur, Denmark).

ventilation motor, they may also be advantageous in facilitating setup of animal facilities without expensive investments in central ventilation. They may also be used for protecting animals ,and staff in facilities far from central facilities, e.g., when animals for a 1-day acute study are to be housed in the research laboratory without exposing the animals to stressful noises or the staff to allergens.

Figure 11.10 A cage protected by a lid with a filter, a so-called filter-top (Tecniplast, Italy).
Figure 11.11 An individually ventilated cage (IVC) rack (Tecniplast, Italy).
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