HOT AIR OVEN
High temperature and comparatively long exposure times are required for hot air oven. Various types of powders, glass materials, etc. are sterilized by this method
Mechanism of Hot Air Oven
- It works on the principle of sterilization by dry heat
Temperature: 160 degree celcius
Time: one hour
- Articles sterilized include glassware, forceps, scissors, scalpels, syringes, liquid paraffin and dusting powder
Advantages
- All types of microorganisms including spores are killed by this method
- It is safest method of sterilization
Disadvantage
- It is costly method of sterilization
General Instructions
- Glassware should be perfectly dry before placing in the oven
- Oven must be allowed to cool down for 2 hours before door is opened after sterilization
- It should not be overloaded
- Articles should be arranged in such a manner that free circulation ofd air is possible
