Which hepa filter does the Winix P450 take?

Winix P450 air purifier hepa filter

Winix P450: the hepa filter is part 113250. Source: Winix, checked November 6, 2026.

Air filters load up with dust and smells. The maker lists how often to change it.

1HEPA filter113250

Part numbers come from Winix (source), checked November 6, 2026. Amazon buttons open a search for the part number; we may earn a commission.

On a label on the bottom or the back of the purifier.