Skip to content
47

2016 toyota corolla cabin air filter

Skip it

A small market ($53K/yr) — this niche doesn't clear our bar today.

Market size 13Growth 66Conversion 98Competition 27Returns 92Price range 39Avg price 61Brand share 45Review moat 22Quality gap 19

Conversion

Incredible16.3%

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

Returns

Great1.1%

return rate — above 6% kills the launch gate

Growth

Good+45.2%

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

Avg price

Good$13.31

avg listing price — sweet spot $15–$100

Brand share

Okay78%

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

Price range

Okay$7.44–$19.87

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

Competition

Okay69%

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

Review moat

Bad9,807.67

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$53K

$53K/yr · 25K searches

Competition

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

28

Top-5 brand share

78%

Open market

17%

  • Carory26%
  • Puroma18%
  • EPAuto15%
  • kurimup11%
  • Bosch8%
  • VASHEN5%
  • Open — no brand owns it (8 brands, 17%)

Product shelf

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

0%10%$5K20%$11K30%$16K40%$21K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 79 weeks — +45.2% search growth over the last 90 days.
1K800Spike '25Prime Day '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jul · busiest ÷ quietest = 1.8×

Reviews

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

What buyers love

Size-Overall33%

“OEM fit”

Quality-Overall15%

“they seem well made”

Value For Money13%

“Excellent value”

Filtration13%

“Good air filter”

Assembly/Installation9%

“ez to install”

Advertised Vs Actual Product5%

“Works as it should”

Efficiency3%

“Works well for a lot less”

Ease Of Use2%

“Easy to use”

Smell2%

“Has a nice smell to it”

Maintenance And Repair1%

“an easy fix to keep your car's HVAC running well”

What buyers complain about

Compatibility-Overall20%

“not compatible at all”

Size-Overall15%

“Doesn't Fit”

Filtration14%

“No good filter”

Smell9%

“It smells like dirt & really bad”

Quality-Overall3%

“cheap and not good quality air filters”

Advertised Vs Actual Product3%

“Does not fit as advertised”

Strength2%

“Flimsy, very cheaply made with prop65 cancer warning”

Instructions/User Manual/Troubleshooting2%

“No instructions”

Functionality-Overall2%

“It didnt perform as well as I hoped in controlling odors”

Thickness1%

“this thing is so dense it's putting serious strain on the HVAC system”

Top return reasons

Size-Overall52%
Compatibility-Overall24%
Filtration10%
Value For Money4%
Advertised Vs Actual Product3%
Product Condition1%
Defective Material/Parts1%
Quality-Overall1%
Assembly/Installation1%
Functionality-Overall1%