| Properties | Details |
|---|---|
| SFDA Classification | Class B * *Biosafety Cabinet (Class II type A2) |
| Purpose of Use | A biosafety cabinet is a ventilated lab workspace that serves as a means to provide three types of protection: • Protection of individuals from harmful factors inside the treasury. • Protect the sample from unsterilized room air to avoid contamination of the experiment. • Protecting the environment from harmful bacteria and viruses inside the cabinet |
| Work Location & End-User | Workplace: Medical laboratory designed with Biosafety Level: 1, 2, or 3 (working with low to moderate risk biological agents) End-User: Medical laboratory staff. |
| Parts & Accessories | The safety cabinet consists of an electric safety lock, fluorescent lamp (behind the cover), water socket, drain valve, water and gas tap, UV lamp, control panel and LCD screen , HEPA filter for exhaust, HEPA filter for supply, fan.  |
| Operation | An indoor fan draws polluted room air into the cabinet through the front vent and then into the front intake grille. The intake air is drawn under the worktop and forced into the rear air package, where (30%) of the total air is discharged through the HEPA filter to the exhaust. The remaining air (70%) is recirculated to the working chamber through a supply HEPA filter in a laminar flow (one-way). Downward air splits as it approaches the work surface. Part of the air passes through the front grille, providing personal protection from polluted work surface air, and the rest through the rear grille. The air is then recirculated through the HEPA filter to the work area or exhausted to provide the highest level of product protection. Class A2 Biosafety Cabinets may exhaust filtered air back into the room or drain it out of the building.  |
| Common Problems | Signs that a biosafety cabinet has failed include blackouts, lack of airflow, unusual noises, and unusual odors. If any of these signs are observed, the operator must stop operating as soon as possible. Modern biological safety cabinets are equipped with audible or visual alarm systems to warn the operator when a malfunction occurs in the cabinet. The most common alarm in a biosafety cabinet is the window position alarm. The operator must keep the window at an appropriate height to maintain a balanced airflow. Because unbalanced airflow velocities can increase risks to operators when working with infectious materials. |
| Manufacturers | • LABCONCO • AIRTECH • Heal Force |
| Sources | • Saudi Food and Drug Authority • LABCONCO • BAKER • LABOGENE • JAYPEEDIGITAL • TUBERCULOSIS PROGRAMME • NUAIRE • ILLINOIS • UNIVERSITY OF MANITOBA • Biocompare • AIRTECH • HEALFORCE |
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