The Bacti-Cinerator IV sterilizes by infrared heat. Organic material is incinerated deep in a ceramic funnel tube. To use, simply insert loop or needle into the heating element cavity. Complete sterilization takes only 5 to 7 seconds at optimum sterilizing temperature of 1600°F. No need to wait for loops or needles to turn red. Unit is not affected by air mixtures or drafts. Base is weighted for stability. Temperature (1600°F/871°C) is reached within 6 minutes.