If you are not sure what unit you have, please send us a photo of your unit, your filter, dimensions or your serial # so we can verify with Austin Air
Do you have a Standard Austin Air Unit ?
- Is your unit on wheels
- Does the label say HM400/HM405/HM450/HM402
- Is your current filter 14.5" in height
- Are dimensions of your unit 14.5" x 14.5" x 23"
Few Important Notes
- Is your unit manufactured before 1996?
If yes, your unit can only use the Allergy Machine Hega Filter which you can find by clicking here.
- Is your unit manufactured after 1996?
If yes, your unit can use any of the standard filters as they are interchangeable.