Is flutter valve profitable to sell on Amazon United States?

The niche generates $631K/yr across 22 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is -10.8%. Flapen's verdict: Worth a look (57/100).

How competitive is the flutter valve niche?

11 brands and 22 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 79% of demand.

What do buyers complain about in flutter valve?

Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Breathability. The return rate is 2.4%.

When does demand for flutter valve peak?

Demand peaks in Nov–Dec; the busiest month runs 2.8× the quietest.

What does it cost to enter the flutter valve niche?

Listings span $16.18–$68.22; the average listing price is $35.86 (sweet spot $15–$100). The average incumbent carries 1,084 reviews — the moat a new listing must climb.

flutter valve

Worth a look

Shows a sweet-spot price point ($35.86 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Incredible$35.86

avg listing price — sweet spot $15–$100

Price range

Incredible$16.18–$68.22

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

Conversion

Good6.5%

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

Market size

Good$631K

$631K/yr · 270K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Good2.4%

return rate — above 5% kills the launch gate

Review moat

Good1,084

avg incumbent reviews — the moat a new listing must climb

Competition

Okay56%

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

Brand share

Okay79%

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

Growth

Bad-10.8%

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

According to Flapen's Amazon United States niche tracking, flutter valve is a $631K/yr Amazon United States market (270K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 57/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

flutter valve market data

Units sold / yr: 15K–20K; avg 750–1,000/product
Revenue / yr: $538K–$717K; units × avg price
Conversion rate: 6.5%
Avg BSR: #131
Page quality: 0%
Prime: 95%
Sponsored: 100%
Out of stock: 6.0%
Avg brand age: 50 months
Avg seller age: 160 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

56%

Top 20: 97%

Open market

14%

Vopacare22%
AirPhysio19%
TyeinGo16%
AiraVentus13%
NebuAksol9%
MILL .STEPS7%
Open — no brand owns it (5 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.8% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 2.8×

Open Trend

Top flutter valve search terms

flutter valve device for lungs33K/yr -7.9%10.6% conv.
flutter valve40K/yr -23.9%7.5% conv.
aerobika breathing device30K/yr -16.7%2.1% conv.
aerobika29K/yr -10.1%1.7% conv.
airphysio30K/yr -8.2%6.4% conv.
air physio14K/yr -3.9%7.3% conv.
aerobika flutter valve mucus removal device7K/yr +13.0%3.3% conv.
aerobika device10K/yr -3.6%0.8% conv.
air physio lung device15K/yr -14.1%7.4% conv.
airphysio lung cleaning device9K/yr +7.2%10.2% conv.

All search terms

Top flutter valve 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 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Flutter Valve Breathing Exercise Device for Lungs Mucus Removal Device Adjustable Resistance Breathing Trainer Portable Lung Exerciser for Mucus Clearance

Vopacare$29.044.6★362 rev

AirPhysio | Drug-Free Portable Breathing Trainer Device for Lungs | Breathe Better Improve Lung Health & Mucus Clearance | Average Lung Capacity Device | Made in Australia

AirPhysio$56.084.0★1,590 rev

Flutter Valve Device for Lungs Breathing Exercise Devicefor Lungs Adjustable Resistance for Natural Mucus Removal Portable Lung Exerciser Device | Breathing Trainer

TyeinGo$22.764.4★1,182 rev

MILLSTEPS Breathing Exercise Device for Lungs Flutter Valve Expiratory Breathing Exerciser - Clear Mucus from Airways Naturally & Build Stronger Lungs (Blue)

MILL .STEPS$17.074.3★506 rev

Flutter Valve Device for Lungs Breathing Exercise Device Adjustable Resistance Breathing Trainer for Natural Mucus

AiraVentus$58.844.5★239 rev

Newest

by launch date

Giyosk Breathing Exercise Device for Lungs Mucus Removal Flutter Flutter Valve Mucus Removal Device with A Set of Accessories Breathing Trainer for Lung Cleanse(Blue)

Giyosk$25.691,687 rev

4mo ago

Breathing Exercise Device Non-Measuring Exerciser & Portable Lung Exerciser with Adjustable Resistance Flutter Valve Respiratory Muscle Trainer for Mucus Clearance & Better Breathing

Willnice$41.7318 rev

7mo ago

Flutter Valve Breathing Exercise Device for Lungs Exerciser Non-Measuring - Breathing Trainer Mucus Removal Device

Vopacare$52.56362 rev

7mo ago

Flutter Valve Device for Lungs Breathing Exercise Devicefor Lungs Exerciser Non-Measuring - Breathing Trainer Natural Mucus Removal Device

AiraVentus$16.18239 rev

9mo ago

Flutter Valve Device for Lungs Breathing Exercise Device Exerciser Non-Measuring - Breathing Trainer Adjustable Resistance Breathing Trainer for Natural Mucus

AiraVentus$54.81239 rev

9mo ago

What buyers say about flutter valve

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

What buyers love

Breathability16%

“Breather easier”

Quality-Overall13%

“Excellent build quality”

Ease Of Use12%

“Easy to use”

Cough Relief12%

“Helped clear up my cough”

Efficiency9%

“Very effective for him”

Advertised Vs Actual Product6%

“Item as described”

Ease Of Cleaning4%

“also is easy to take apart for cleaning”

Value For Money4%

“well worth it”

Instructions/User Manual/Troubleshooting3%

“The instructions are easy peasy”

Sinus Relief2%

“Great for mucus clearance”

What buyers complain about

Functionality-Overall13%

“Ineffective”

Quality-Overall11%

“Quality Could Be Better”

Breathability7%

“have problems breathing”

Value For Money6%

“Not worth paying for”

Instructions/User Manual/Troubleshooting4%

“Complicated instructions”

Material Quality4%

“This thing feels incredibly cheap”

Cough Relief3%

“had to cough we got her this”

Durability3%

“Broke”

Strength2%

“Very ineffective product”

Ease Of Use2%

“Was difficult to use”

Top return reasons

Functionality-Overall28%

Breathability21%

Advertised Vs Actual Product11%

Ease Of Use4%

Product Condition4%

Size-Overall3%

Value For Money3%

Comfort-Overall2%