Air purifier · Confirmed for this model

Philips AC4550 replacement filter

We found one replacement that the manufacturer lists for this model.

Confirmed for this modelManufacturer-confirmed relationshipThe manufacturer source we used lists this model or part relationship.

Brand: PhilipsModel: AC4550Category: Air purifierChecked: 2026-08-22

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The exact model number is best, but brand names and filter part numbers work too.

Other ways this model may be written

AC4550/60AC4550/30AC 4550

Confirmed for this modelAir purifier filterGenuine manufacturer part

Philips NanoProtect HEPA filter

Part / reference

FY3433/10

This is the genuine Philips replacement listed for this model.

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Useful checks

height: 370 mm
length: 50 mm
width: 290 mm

Source for these specifications →

Replacement guidance: Up to 2 years

Reference sourcesManufacturerPhilips manufacturer page

Before ordering

Check that the full model name or code on your appliance matches the one above. If your old filter has a reference printed on it, compare it with FY3433/10.

Why we think this fitsManufacturer evidence is available

Manufacturer replacement-filter compatibility listing.

The manufacturer replacement-filter page explicitly lists this model as compatible.

See the manufacturer source →

Specialist parts sites may be used as a second reference for factual details such as dimensions, alternate part-number formatting or model-family clues. They do not upgrade an uncertain match to “confirmed” on their own.

Same replacement

Also fits these checked models

These models use the same replacement in our checked catalogue. Their confidence labels are shown individually.

Philips AC3256Air purifier · Confirmed for this model · FY3433/10 Philips AC3259Air purifier · Confirmed for this model · FY3433/10 Philips AC4558Air purifier · Confirmed for this model · FY3433/10