The Miele Classic C1 Delphi is part of the Vacuum cleaner test program at Consumer Reports. In our lab tests, Canister vacuum models like the Classic C1 Delphi are rated on multiple criteria, such as those listed below.
Carpet: Indicates how much embedded talc and sand a vacuum lifted from a medium-pile carpet.
Bare floors: Shows how well a vacuum picked up sand without dispersing it on bare floors.
Tool airflow: Indicates the strength of airflow through the hose.
Unbiased: Retailers cannot influence placement.
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New products only: You will never find used or refurbished products for sale.
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