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Laboratory ovens designed to provide forced-air convection in the working chamber, increasing the uniformity of heating. They usually operate (frequently using a computer program) at temperatures in a range from ambient to a maximum of between 200 and 300 degrees Celsius (392 to 572 degrees Fahrenheit). These ovens typically consist of a thermal isolated chamber made of corrosion-proof materials and, frequently, a big glass window, a blower that circulates heated air through the chamber. and air intake and exhaust ports. The ovens also include time-and-temperature sensors and controls (either manual or automated), temperature protection, and alarms. Forced-air laboratory ovens are used mainly in procedures (e.g., conditioning, sterilizing, quality control) involving cultures and samples when accurately controlled uniform heating is required. They are available in many different capacities (typically from 27 to 135 cubic dm/1 to 5 cubic feet) and configurations (e.g., tabletop, upright, undercounter). Tabletop units intended for thawing and/or warming plasma and/or other related products (e.g., whole blood, erythrocytes) are also available.
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