Is zehnder filter comfoair 350 profitable to sell on Amazon Germany?

The niche generates €87K/yr across 23 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.3%. Flapen's verdict: Worth a look (53/100).

How competitive is the zehnder filter comfoair 350 niche?

12 brands and 25 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in zehnder filter comfoair 350?

Top complaints mined from reviews: Dünn, Qualität insgesamt, Dicke. The return rate is 0.3%.

When does demand for zehnder filter comfoair 350 peak?

Demand peaks in Nov; the busiest month runs 1.6× the quietest.

What does it cost to enter the zehnder filter comfoair 350 niche?

Listings span €11.67–€145.40; the average listing price is €40.11 (sweet spot $15–$100). The average incumbent carries 131 reviews — the moat a new listing must climb.

zehnder filter comfoair 350

Worth a look

Shows low returns (0.3%), but a small market ($87K/yr) keeps it on the watch list.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Avg price

Incredible€40.11

avg listing price — sweet spot $15–$100

Review moat

Great131

avg incumbent reviews — the moat a new listing must climb

Conversion

Great10.8%

search→purchase rate — share of searches ending in a sale

Price range

Good€11.67–€145.40

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Okay57%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Growth

Bad-3.3%

90-day search growth — must beat 0% to launch

Market size

Bad€87K

€87K/yr · 20K searches

According to Flapen's Amazon Germany niche tracking, zehnder filter comfoair 350 is a €87K/yr Amazon Germany market (20K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Nov. Verdict: Worth a look — 53/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

zehnder filter comfoair 350 market data

Units sold / yr: 2K–3K; avg 0–100/product
Revenue / yr: €80K–€100K; units × avg price
Conversion rate: 10.8%
Avg BSR: #1,093
Page quality: 0%
Prime: 52%
Sponsored: 100%
Out of stock: 6.0%
Avg brand age: 44 months
Avg seller age: 234 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

57%

Top 20: 97%

Open market

13%

Zehnder38%
Caehomly16%
Hafeehoo15%
KWL-FilterOnline8%
TOPS6%
Monkraft4%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.3% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.6×

Open Trend

Top zehnder filter comfoair 350 search terms

zehnder filter comfoair q3509K/yr +5.7%10.8% conv.
zehnder filter comfoair 3505K/yr +19.0%9.5% conv.
zehnder filter6K/yr -29.6%8.0% conv.

All search terms

Top zehnder filter comfoair 350 products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Zehnder-Filterset G4 (Aufnahme) und F7 (Förderstrom) für die Zehnder Lüftungsgeräte Comfoair Q 350/450/600

Zehnder€31.904.7★481 rev

Luftfilter für Zehnder ComfoAir Q 350/450/600 | 3 Filtersets | Filterset G4 | 6x Paneelefilter Z/Line Karton 160x500x23 mm. G4 | 400502012

Hafeehoo€50.594.6★119 rev

Zehnder - 2x Filter für ComfoAir Q350/Q450/Q600 G4 Lüftungsgeräte

Zehnder€31.044.7★407 rev

2x Filterset für Zehnder ComfoAir Q350/450/600 Lüftungsgeräte G4 (Aufnahme) und F7 (Förderstrom) für Zehnder Filter Comfoair Q350 Ersetzt Original für Zehnder 400502013

Caehomly€32.144.9★7 rev

KWL Luftfilter für Zehnder ComfoAir Q 350/450/600 | 3 Filtersets | Pollenfilterset G4+F7 | 3x Paneelefilter Z/Line Karton 160x500x23 mm. G4 + 3x Paneelefilter Z/Line Karton 160x500x23 mm. F7 400502013

KWL-FilterOnline€56.234.2★26 rev

Newest

by launch date

Filterset für Zehnder ComfoAir 350/500/550 Standard 300/375 Wernig G90-380 G90-500 Lüftungsgerät Luftfilter G4 / F7 (2 Stück) filter lüftungsanlage 400100084

Monkraft€18.743 rev

4mo ago

2x Filterset für Zehnder ComfoAir Q350/450/600 Lüftungsgeräte G4 (Aufnahme) und F7 (Förderstrom) für Zehnder Filter Comfoair Q350 Ersetzt Original für Zehnder 400502013

Caehomly€32.147 rev

7mo ago

2 Stück Lüftungsanlage Filter für Zehnder ComfoAir 350/550 Lüftungsgerät Ersatzluftfilter G4/F7 Ersetzt 400100084(Nicht für Q350)

Caehomly€17.267 rev

7mo ago

25 kegelfilter DN 125 G4 filtermatte filter lüftungsanlage Ersatz für Zehnder Maico Pluggit Helios Disc Valves ersatzfilter für lüftungsanlage mit Durchmesser 125 mm Länge 180 mm Dicke 8 mm

VILLAPOOL€17.3355 rev

1y ago

KWL Luftfilter für Zehnder ComfoAir Q 350/450/600 | 1 Filterset | Pollenfilterset G4+F7 | 1x Paneelefilter Z/Line Karton 160x500x23 mm. G4 + 1x Paneelefilter Z/Line Karton 160x500x23 mm. F7 400502013

Hafeehoo€25.19112 rev

1y ago

What buyers say about zehnder filter comfoair 350

What buyers praise and complain about, mined from review topics.

What buyers love

Gesamtgröße33%

“Passt alles”

Filterung19%

“Die Filter passen perfekt”

Qualität insgesamt16%

“Super Qualität”

beworben Vs Tatsächliches Produkt11%

“Wie beschrieben, alles super”

Preis-Leistungs-Verhältnis10%

“Faire Preise”

Montage/Installation3%

“Der Einbau war werkzeuglos mit wenigen Handgriffen erledigt”

Benutzerfreundlichkeit2%

“lassen sich leicht austauschen.”

What buyers complain about

Dünn15%

“Zu dünn”

Qualität insgesamt15%

“Fragliche Qualität”

Dicke10%

“Etwas dünn”

Kompatibilität – insgesamt10%

“Nicht kompatibel mit Zehnder ComfoAir Q350”

Defekt Material/Teile10%

“Endstücke nicht aus Kunststoff”

Materialqualität5%

“Das Material ist im Vergleich zu meinen bisherigen Filtern deutlich dünner, die Aussenseite flust”

Geräuschpegel5%

“Lüftungsanlage wurde von Tag zu Tag immer Lauter”

Filterung5%

“Wie original - sollte aber besser klar sein wo welcher Filter rein kommt”

Einfache Reinigung3%

“Das ist dann ärgerlich, wenn man die alten, verschmutzten Filter entsorgen will”

Top return reasons

Gesamtgröße53%

Kompatibilität – insgesamt22%

Filterung10%

Dünn5%

beworben Vs Tatsächliches Produkt3%

Qualität insgesamt3%

Dicke3%

Defekt Material/Teile1%

Materialqualität1%

Common questions

Is zehnder filter comfoair 350 profitable to sell on Amazon Germany?: The niche generates €87K/yr across 23 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.3%. Flapen's verdict: Worth a look (53/100).
How competitive is the zehnder filter comfoair 350 niche?: 12 brands and 25 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 83% of demand.
What do buyers complain about in zehnder filter comfoair 350?: Top complaints mined from reviews: Dünn, Qualität insgesamt, Dicke. The return rate is 0.3%.
When does demand for zehnder filter comfoair 350 peak?: Demand peaks in Nov; the busiest month runs 1.6× the quietest.
What does it cost to enter the zehnder filter comfoair 350 niche?: Listings span €11.67–€145.40; the average listing price is €40.11 (sweet spot $15–$100). The average incumbent carries 131 reviews — the moat a new listing must climb.