Eureka DCF-21 Filter

For optimal suction and air quality, we recommend replacing your filter every 3 to 6 months, depending on your household's usage and the amount of pet dander or dust you typically vacuum.

This specific filter is designed as a disposable replacement part. While some users attempt to clean it, washing can degrade the HEPA material and compromise its ability to capture fine allergens, so it is best to replace it with a fresh unit.

The DCF-21 is compatible with several Eureka model lines, including the 460, 3270, 3280, 4230, 4240, 8810, 8860, 8870, AS1000, and AS1040 series, as well as various AirSpeed models. Check the model number printed on your vacuum's rating plate to confirm it matches one of these series.

Yes, this is a HEPA-grade filter, which is engineered to capture fine dust, pollen, and other common household allergens. Replacing an old, clogged filter with a new one significantly improves the air output quality of your vacuum.

Often, yes. A clogged filter restricts airflow, which forces the motor to work harder and reduces suction at the floor head. Replacing the filter is the first and easiest step in troubleshooting suction loss.