How To Clean And Store Brush Heads

Rinse residue and let the head dry. Avoid high heat or a dishwasher unless the maker allows it.

What matters for this question

Rinse paste and debris from the head after brushing and let it air-dry. Store household heads apart so bristles do not touch.
Do not microwave a head or place it in a dishwasher unless the maker expressly permits it; heat may damage the part.

One documented model match per head; not a personal recommendation
Head family	Example fitting handle	Bristle wording	Catalog market
Oclean Classic Delicate Care P3K1	Oclean Air 2	Not recorded	EU
Oclean Classic Delicate Care P3K4	Oclean Air 2	Not recorded	EU
Oclean Classic Gum Care P1S12	Oclean Air 2	Not recorded	EU
Oclean Classic Plaque Control P1C8	Oclean Air 2	Not recorded	EU