Tips for buying an autoclave

Tips for buying an autoclave

In this blog post we are going to share some of our tips for buying an autoclave. The Midmark brand of autoclaves are popular in medical, dental, and veterinary offices.  In this example we’ve decided to look at the Midmark M9-020 thru -022 and M11-020 thru -022 models.

1. Where is this autoclave going to fit?

The size of an autoclave should not be overlooked when making a purchasing decision.  It isn’t a good feeling to order an autoclave only to realize that it doesn’t fit in the designated area.  Here are some guidelines for getting the right autoclave for your space using an example.

They say a picture is worth a thousand words, and we couldn’t agree more for this example.

Tips for buying an autoclave example

In the diagram above you’ll notice that there are differences in the minimum surface depths for each model of autoclave ranging from 21 inches or 53 cm for the Midmark M11 and 18 inches or 46 cm for the Midmark M9 along with additional clearances of 5 inches or 13 cm from the top to any shelf and 2 inches or 5 cm from either the left, right, and back of the autoclave.

It’s also important that the autoclave remain on a level surface near the proper receptacle. The Midmark M11 and M9 are available in 115 and 230 VAC.


  • Before you buy an autoclave make sure it is going to fit in the designated area
  • Ensure the autoclave is on a level surface
  • Buy an autoclave with the proper power rating for your receptacle

2. What instruments am I going to sterilize?

It’s important to buy an autoclave that suits the sterilization of the instruments you use.  Here are some general guidelines:

  • Items must fit within the tray and not extend over the lip of the sterilizer tray.
  • Instruments must not scrape the chamber walls when sliding the tray into the chamber.
  • Jointed items must be sterilized in an open poistion so all surfaces are exposed to the steam.
  • Handpieces and instruments must be arranged in a single layer on the trays (not piled or stacked), to permit proper steam flow and drying.
  • Glassware or utensils capable of holding water, e.g. bottles, basins, beakers, etc., should be positioned on the tray with the open side down so any water condensate drains from the container.  When sterilizing glasswware check with the manufacturer to make sure it is compatible with steam sterilization.

3. Should I buy a new, refurbished, or used autoclave?

Customers should understand what they’re getting when buying new, refurbished, or used autoclaves.  New autoclaves typically carry the longest warranty, but many sellers offer extended warranties to match the warranty of a new unit.  We are one such seller.  Our standard warranty period is 90 days for autoclaves, but we also offer extended warranties of 6 months and 1 year.