Peak Flow Meter
FailThe top 5 products take 91% of clicks, so Peak Flow Meter is a Fail.
- Flapen Score
- 49 / 100Ranks 7,059 of 14,768 Health & Household niches · on the category median49
- Market size
- $397K/yr119K searches / yr
- 90-day growth
- -14.0%search demand this quarter
- Competition
- 91%top-5 click share · 6 brands · 16 sellers
Flapen Score
Peak Flow Meter against its category
The dotted line is the Health & Household average. Past it, Peak Flow Meter is stronger. Inside it, weaker.
Market
The Peak Flow Meter market on Amazon at a glance
Shoppers on Amazon United States searched for Peak Flow Meter 119K times last year and spent an estimated $397K. The top 5 brands take 97% of clicks. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 9.9% of those searches ended in a purchase.
Shoppers searched for this 119K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.9% of those searches ended in a purchase. Searches in the last 90 days moved -14.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $397K a year.
- Searches, last 12 months
- 119K
- Growth, 90 days vs prior 90
- -14.0%
- Conversion, latest week
- 9.9%
- Market size, estimated
- $397Ka year
- Peak month
- September1.5× the quietest month
- Top search term
- peak flow meter57K searches a year
02 · Price
A sale here is worth $33.82.
Listings sell for $33.82 on average, from $12.27 to $58.98. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 1,000 to 1,250 of them. At $33.82 that is $34K to $42K a year per listing.
- Average price
- $33.82inside the $15 to $100 sweet spot
- Price range
- $12.27–$58.98
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- $34K–$42K
- Returns
- 3.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 5.1% of listings are out of stock. The average listing ranks #1,032 within Allergy, Sinus & Asthma. It carries 300 reviews at 3.86 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 5.1%
- Average rank
- #1,032in Allergy, Sinus & Asthma
- Average rating
- 3.86 starsAmazon United States average 4.42 stars
- Average reviews
- 300per listing
- Listings tracked
- 8
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top Peak Flow Meter products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Nascool Peak Flow Meter for Adults & Kids
- Price
- $29.41
- Rating
- 4.4/5
- Reviews
- 669
- Age
- 4y ago

Mechanical Peak Flow Meter | PEF Tester - Track & Monitor Peak Expiratory Flow Changes
- Price
- $19.73
- Rating
- 3.9/5
- Reviews
- 86
- Age
- 1y ago

Sonmol Digital Peak Flow Meter PEF FEV1 Tester with Color Indicators
- Price
- $39.98
- Rating
- 4.5/5
- Reviews
- 53
- Age
- 2y ago

Microlife (Deluxe Kit) Digital Peak Flow Meter Tests PEF / FEV1 / Early Detection of Asthma Attacks | Spirometer for Kids & Adults | Perfect for Monitoring Asthma COPD & other Lung Conditions at Home
- Price
- $43.21
- Rating
- 4.3/5
- Reviews
- 1,487
- Age
- 17y ago

Bluetooth Peak Flow Meter Digital PEF FEV1 Monitor for Asthma
- Price
- $58.98
- Rating
- 4.3/5
- Reviews
- 70
- Age
- 3y ago
Trending
estimated 90-day click momentum
Bluetooth Peak Flow Meter Digital PEF FEV1 Monitor for Asthma
- Price
- $58.98
- Rating
- 4.3/5
- Reviews
- 70
- Age
- 3y ago

Mechanical Peak Flow Meter | PEF Tester - Track & Monitor Peak Expiratory Flow Changes
- Price
- $19.73
- Rating
- 3.9/5
- Reviews
- 86
- Age
- 1y ago

Klanata Peak Flow Meter Rotameters Plastic Plastic Tube Type Adult 100 1000L H Water Flow Meter Flowmeter Lzs 15
- Price
- $12.27
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 11mo ago

Microlife Digital Peak Flow Meter Tests PEF / FEV1 / Early Detection of Asthma Attacks (Spirometer for Kids & Adults) Device for Monitoring Asthma COPD & Other Lung Conditions
- Price
- $44.19
- Rating
- 4.0/5
- Reviews
- 7
- Age
- 7y ago

Nascool Peak Flow Meter for Adults & Kids
- Price
- $29.41
- Rating
- 4.4/5
- Reviews
- 669
- Age
- 4y ago
Newest
by launch date
Klanata Peak Flow Meter Rotameters Plastic Plastic Tube Type Adult 100 1000L H Water Flow Meter Flowmeter Lzs 15
- Price
- $12.27
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 11mo ago

Mechanical Peak Flow Meter | PEF Tester - Track & Monitor Peak Expiratory Flow Changes
- Price
- $19.73
- Rating
- 3.9/5
- Reviews
- 86
- Age
- 1y ago

Navnihaal Breath-O-Meter Peak Flow Meter White
- Price
- $22.79
- Rating
- 4.5/5
- Reviews
- 26
- Age
- 2y ago

Sonmol Digital Peak Flow Meter PEF FEV1 Tester with Color Indicators
- Price
- $39.98
- Rating
- 4.5/5
- Reviews
- 53
- Age
- 2y ago

Bluetooth Peak Flow Meter Digital PEF FEV1 Monitor for Asthma
- Price
- $58.98
- Rating
- 4.3/5
- Reviews
- 70
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 91% of clicks. A locked shelf that new listings rarely crack.
Brands
6 falling
Sellers
16
Est. top-5 brand share
97%
Top 20: 100%
Est. top-5 click share
91%
Top 20: 100%
Open market
0%
- Nascool52%
- Holdly25%
- Microlife10%
- Sonmol8%
- Klanata3%
- Navnihaal3%
- Open — no brand owns it (0%)
Demand
Peak Flow Meter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Peak Flow Meter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- peak flow meter57K/yr
- peak flow meter adult33K/yr
- peak flow meter asthma13K/yr
- peak flow meter for kids7K/yr
- peak-flow meter4K/yr
- peak flow4K/yr
Reviews and returns
What reviews say buyers love and hate about Peak Flow Meter
We read the reviews and the return reasons for every product selling here.
“Breaks easily”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Peak Flow Meter questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









