A convection oven is popularly
known as fan assisted oven which has a function of circulating the air around the
oven cavity. The air circulation ovens
or commonly known as Hot air ovens provides dry heat & are used in
sterilization. The hot air oven machine is used to sterilize the articles
through dry heat. The oven has the hot air inside the oven chamber which is
produced by the forced air circulation. Here are some advantages, disadvantages
and usage of the hot air oven machine.
Hot
Air Oven Advantages
1.
The
hot air oven is advantageous for the sterilization of those particular substances
that gets spoiled during the moist heat sterilization such as powders & oily
materials.
2.
The
method is suitable for sterilization of assembled equipments such as all glass
syringes due to expose to high temperature for a long time.
3.
The
hot air oven is less damaging for glass & metals equipments.
4.
The
dry heat shall not corrode and rust the instruments or needles.
5.
The
dry heat shall also sterilize instruments which contain lots of parts which cannot
be disassembled
Hot
Air Oven Disadvantages
1.
The
hot air oven is not suitable for surgical dressing.
2.
The
hot air oven is also not suitable for the medicaments, plastic & rubber
good since the articles are exposed to high temperature for a longer period of
time.
3.
The
dry heat does penetrate slowly & unevenly.
4.
The
dry heat requires a very long exposure time in order to achieve sterility.
5.
The
dry heat certainly requires a very high temperature and due to this lot of
items can’t be safely exposed to the machine.
6.
Moreover,
dry heat requires special packaging materials which can uphold integrity under very
high heat conditions.
7.
The
dry heat might require a different temperature & exposure time which
depends on the type of item that is being sterilized.
Hot Air Oven Usage
Listed below are few of
the ample usage of air circulation oven.
1.
It
is mainly used for the sterilization of glass wares such as motar & pestle,
flasks, petridishes, bottles, pipettes, test tubes etc.
- It
is used for the sterilization of powders such as sulphadiazenes, sulphacetamides,
zinc oxide, kaolin, starch etc.
- Injections
where fixed oil is used as the vehicle are sterilized by the dry heat
method. Such injections are injections of progesterone, injections of
oestradiols dipropionate & injection of testosterone propionate
- The
hot air oven is used for sterilization of scissors, scalpels, blades,
spatula, & glass syringes.
- The
chemical labs, research institutions, glassware in laboratories, pharmaceutical
industries, R & D centers & hospitals uses hot air ovens as these are
suitable for temperature up to 250 degree Celsius.
- These
ovens suits to numerous applications such as drying, heating, baking &
sterilizing.
You can purchase the air circulation oven or hot air oven
machine through different online websites. These online portals offer huge
discount on the machine very frequently in a year.
