Compatible filters
Filters for Zehnder ComfoD 350 / 450 / 550
2 filters · 198 × 500 × 14 mm · cardboard frame · G4 or F7
Choose your set
A set contains every filter of the unit. Prices incl. 21% VAT.
Recommended in townG4/F7 set
Higher filtration on the supply side
1 × ISO ePM1 65% (F7) and 1 × ISO Coarse 75% (G4)
Unavailable
A set unavailable? We let you know when it is back.
One email when restocked, nothing else.
- Compatible with Zehnder ComfoD 350 / 450 / 550, matching dimensions and filter class
- Delivery in Belgium, free from €50.00
- Secure payment, Bancontact, cards
- Made in the European Union
The Zehnder ComfoD 350 / 450 / 550 uses 2 filters of 198 × 500 × 14 mm, cardboard frame (Extract air, Supply air (fresh)). Our sets match these dimensions in ISO Coarse 75% (G4) and ISO ePM1 65% (F7). Made in the European Union.
Compatible product. Not manufactured or sold by the brand named. Brand and model names are used solely to indicate compatibility.
What the set contains
Each set delivers every filter of the unit, ready to fit.
| Position | Quantity | Dimensions | Frame |
|---|---|---|---|
| Extract air | 1 | 198 × 500 × 14 mm | cardboard |
| Supply air (fresh) | 1 | 198 × 500 × 14 mm | cardboard |
Manufacturer references
- 400100085
Original references this filter shape corresponds to. Our sets are not Zehnder parts.
Specifications
- Unit
- Zehnder ComfoD 350 / 450 / 550
- Unit brand
- Zehnder
- Number of filters
- 2
- Filter dimensions
- 198 × 500 × 14 mm
- Thickness
- 14 mm
- Frame
- cardboard
- Available classes
- ISO Coarse 75% (G4) and ISO ePM1 65% (F7), ISO 16890 standard
- Matching manufacturer references
- 400100085
- Type
- Compatible filter, not an original part
- Made in
- European Union
- Recommended replacement
- Every 6 months, check every 3 months
G4 or F7?
Both classes exist for this model. The G4/F7 set combines them.
| ISO Coarse 75% (G4) | ISO ePM1 65% (F7) | |
|---|---|---|
| Stops | Dust, insects, lint | Pollen, fine particles, soot |
| Position | Extract and supply air | Supply air, intake side |
| For whom | The unit's standard configuration | Allergies, city, busy road |
| Lifetime | 6 months | 6 months, watch it more closely |
When and how to replace
Every six months in most homes, more often near a road, during building work or with pets. A grey, bulging or smelly filter needs replacing without waiting for the date.
- 01
Switch off the power
Turn the unit off or cut the breaker before opening the hatch.
- 02
Open the filter hatch
Remove the old filters and note their direction: an arrow or label shows the air inlet side.
- 03
Slide in the new filters
If the set mixes two classes, the fine filter (ISO ePM1) goes on the supply side. With two identical filters there is no order to follow. The frame must sit flat, without play.
- 04
Reset the indicator
Close up, switch back on and reset the filter reminder on the controller, if there is one.
Other units using this filter
These models take an identical filter shape.
Frequently asked questions
Are these original Zehnder parts?
No. They are compatible filters, made to the dimensions of the ComfoD 350 / 450 / 550 filter (198 × 500 × 14 mm) and to the stated filter class, by a European ventilation filter manufacturer.
G4/G4 or G4/F7: which set for the ComfoD 350 / 450 / 550?
G4/G4 is the standard configuration: a fine coarse filter on each side. G4/F7 puts a fine filter (ISO ePM1 65%) on the supply air, useful against pollen and fine particles, and keeps the G4 on the extract. The F7 loads faster: keep an eye on it.
How can I be sure the filter fits my ComfoD 350 / 450 / 550?
Compare the dimensions on this page, 198 × 500 × 14 mm, and the frame type with your current filter. If in doubt, write to us with a photo of the filter: we check before shipping.
When will the filters be shipped?
Sets in stock ship within two working days of payment, by parcel, throughout Belgium, with a tracking email. A set shown as unavailable does not ship: leave your email and we will let you know when it is back.
Would you rather we did it?
We replace the filters during the unit's service visit and hand you a written report.