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53

still air box

Worth a look

Shows a thin review moat (108 avg reviews), but soft demand (+0.7% this quarter) keeps it on the watch list.

Market size 45Growth 26Conversion 34Competition 29Returns 74Price range 93Avg price 95Brand share 48Review moat 95Quality gap 82

Review moat

Great107.56

avg incumbent reviews — the moat a new listing must climb

Avg price

Incredible$37.87

avg listing price — sweet spot $15–$100

Price range

Great$24.70–$102.41

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Returns

Good2.1%

return rate — above 5% kills the launch gate

Brand share

Okay76%

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

Market size

Okay$242K

$242K/yr · 239K searches

Conversion

Okay2.7%

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

Competition

Okay68%

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

Growth

Okay+0.7%

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

According to Flapen's Amazon United States niche tracking, still air box is a $242K/yr Amazon United States market (239K searches/yr). The top 5 brands hold 76% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

still air box market data

Units sold / yr
6K–8K
avg 250–500/product
Revenue / yr
$227K–$303K
units × avg price
Conversion rate
2.7%
Avg BSR
#334
Page quality
0%
Prime
94%
Sponsored
94%
Out of stock
7.7%
Avg brand age
42 months
Avg seller age
169 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

16

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

19%

  • Salcod33%
  • Lovely Ran14%
  • ACOVER13%
  • ToBoom9%
  • A-Premium6%
  • HTZSSON5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.7% search growth over the last 90 days.
4K3KPrime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top still air box search terms

  • still air box85K/yr
  • air filter housing36K/yr
  • air filter box housing assembly14K/yr
  • air filter box21K/yr
  • still air box mycology14K/yr
  • air intake box13K/yr
  • air box14K/yr
  • air box intake10K/yr
  • air filter housing box6K/yr
  • caja de filtro de aire de motor7K/yr
All search terms

Top still air box 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.

0%10%$24K20%$48K30%$73K40%$97K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

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

What buyers say about still air box

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

What buyers love

Value For Money14%

“Worth it”

Quality-Overall14%

“good quality product”

Assembly/Installation9%

“Easy setup”

Ease Of Use9%

“Easy to take out”

Advertised Vs Actual Product8%

“it does exactly what it is meant to do”

Size-Overall8%

“Great size and value”

Plant Growth6%

“Worked very well helped with the process of growing mushrooms”

Strength6%

“This thing is made pretty well it all seemed very sturdy”

Storage Capacity4%

“Very convenient to store vrs my big old tub I've used for years”

Design-Overall4%

“Looks well-designed,”

What buyers complain about

Durability8%

“Not long lasting”

Size-Overall8%

“Huge”

Advertised Vs Actual Product7%

“Removed one star because the dimensions listed in the description are incorrect”

Assembly/Installation6%

“It also ripped while putting it together”

Material Quality6%

“Extremely hard to assemble the fabric over the fiberglass core”

Value For Money6%

“cheap for a reason”

Strength4%

“is really flimsy”

Quality-Overall4%

“Cheap junk,”

Product Condition3%

“Got a used product”

Flammable3%

“the whole thing went up in flames”

Top return reasons

Size-Overall40%
Advertised Vs Actual Product10%
Material Quality8%
Defective Material/Parts6%
Assembly/Installation4%
Product Condition4%
Ease Of Use4%
Functionality-Overall3%
Compatibility-Overall3%
Quality-Overall2%

Common questions

Is still air box profitable to sell on Amazon United States?
The niche generates $242K/yr across 18 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +0.7%. Flapen's verdict: Worth a look (53/100).
How competitive is the still air box niche?
14 brands and 16 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in still air box?
Top complaints mined from reviews: Durability, Size-Overall, Advertised Vs Actual Product. The return rate is 2.1%.
When does demand for still air box peak?
Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the still air box niche?
Listings span $24.70–$102.41; the average listing price is $37.87 (sweet spot $15–$100). The average incumbent carries 108 reviews — the moat a new listing must climb.