---
title: "Humidity Dome — $189K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/humidity-dome"
last_updated: "2026-08-05T21:17:30.436Z"
locale: en
meta:
description: "Niche score 59/100 · $189K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $189K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Humidity Dome — $189K/yr Amazon US Niche (2026) - Flapen"
---
# **humidity dome**
**Worth a look**
Shows a sweet-spot price point ($28.29 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 38Growth 20Conversion 28Competition 85Returns 88Price range 88Avg price 95Brand share 87Review moat 49Quality gap 58
**Avg price**
**Incredible****$28.29**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Price range**
**Great****$7.90–$89.78**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****48%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****30%**
top-5 click share — an open shelf
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,566.63**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$189K**
$189K/yr · 298K searches
**Conversion**
**Okay****2.2%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-9.9%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, humidity dome is a $189K/yr Amazon United States market (298K searches/yr). The top 5 brands hold 48% of demand. Demand peaks in Mar–Apr. Verdict: Worth a look — 59/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **humidity dome market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$170K–$226K**
- units × avg price
- **Conversion rate**
- **2.2%**
- **Avg BSR**
- **#85**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **97%**
- **Out of stock**
- **2.1%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **170 days**
## **Competition & brand share**
Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.
**Brands**
**33 **▼falling
**Sellers**
**55**
**Top-5 brand share**
**48%**
Top 20: 92%
**Top-5 click share**
**30%**
Top 20: 67%
**Open market**
**47%**
- Gardzen12% - RooTrimmer11% - AC Infinity10% - JOPY8% - Bonviee7% - SUMGROW5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.9% search growth over the last 90 days.
9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/humidity-dome/trend)
## **Top humidity dome search terms**
- **humidity dome**87K/yr-19.8%2.1% conv. - **humidity domes for plants**53K/yr-0.9%2.5% conv. - **plant dome**20K/yr+26.1%1.1% conv. - **plant humidity dome**20K/yr+10.6%1.3% conv. - **clone dome**20K/yr+0.6%2.0% conv. - **humidity dome for seedlings**11K/yr-41.2%2.7% conv. - **humidity dome for plants**8K/yr+64.2%2.0% conv. - **cloning dome**7K/yr+25.2%1.8% conv. - **humidity domes**9K/yr-30.4%2.3% conv. - **nursery pots with humidity dome**11K/yr-44.0%3.7% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/humidity-dome/search-terms)
## **Top humidity dome 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%2%$4K4%$8K6%$11K8%$15K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JOPY 4 Inch Plastic Nursery Pots with Humidity Dome for Plants Clear Seed Starter Pots Seedlings Planting Pots for Garden Indoor and Outdoor Small Planter Containers with Drainage Holes (10 Pack)**JOPY**$9.95**4.1★227 rev](https://www.amazon.com/dp/B0CRKG3QKP) [2**AC Infinity Humidity Dome Heavy-Duty Germination Kit with 3 mm Thickest Dome Sturdy Drip Tray 5x8 Cell Seedling Tray Vented Height Extension Panels for Seed Starting Propagation Cloning Plants**AC Infinity**$37.35**4.8★586 rev](https://www.amazon.com/dp/B0B3LMQZ91) [3**Gardzen 5-Set Seed Starter Tray Kits Durable Plant Germination Trays with Humidity Vented Domes and Bases Ideal for Seed Starting Indoor Gardening and Greenhouse (Total 200 Cells)**Gardzen**$18.76**4.6★6,530 rev](https://www.amazon.com/dp/B07R9S38VX) [4**Mini Indoor Greenhouse Tabletop Garden Nursery Plant Cover Tent Humidity Domes for Home Gardening Germination and Seedling Propagation - 23x12x16.5 Inches**SUMGROW**$23.88**4.1★368 rev](https://www.amazon.com/dp/B0BDDR5772) [5**Yield Lab 7 Inch Clone Dome - 5 Pack Humidity Vented Domes Plant Growing Propagation Dome for Seedling Germination Soil & Hydroponic Horticulture**Yield Lab**$33.97**4.3★1,966 rev](https://www.amazon.com/dp/B01M3YQRRY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bluepro 36 Packs 5/4/3.5 Inch Clear Plant Pot Humidity Domes Transparent Seedling Domes Compatible with 5/4/3.5 Inch Reinforced Nursery Pots**Bluepro**$15.87**7 revtoday](https://www.amazon.com/dp/B0F32B4VT8) [**RooTrimmer 13 Inch Humidity Domes Garden Cloches for Plant Protection Protectors from Animals Garden Clear Plant Cover with Ventilation Holes 5 Pack**RooTrimmer**$39.46**141 rev1y ago](https://www.amazon.com/dp/B0F3D11F9Y) [**10 D 6.7 H Plant Protectors from Animals Garden Cloches for Seedlings Nursery Pots Durable Humidity Domes with Ventilation Holes Clear Plant Covers Mini Greenhouse for Plants 5-Pack**RooTrimmer**$21.94**140 rev1y ago](https://www.amazon.com/dp/B0DSPV58N5) [**RooTrimmer 6 Inch Clear Nursery Pots with Humidity Dome 15 Pack Durable Seed Starting Pot with Drainage Holes Transparent Plastic Plant Seedling Pots for Indoor Gardening Plants**RooTrimmer**$26.67**722 rev1y ago](https://www.amazon.com/dp/B0DRNZYHH9) [**JOPY 4 Inch Plastic Nursery Pots with Humidity Dome for Plants Clear Seed Starter Pots Seedlings Planting Pots for Garden Indoor and Outdoor Small Planter Containers with Drainage Holes (10 Pack)**JOPY**$9.95**227 rev2y ago](https://www.amazon.com/dp/B0CRKG3QKP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**MorTime 6 Pack Garden Cloche Plant Dome 7.3 D x 6.9 H Plastic Plant Bell Cover Reusable Mini Greenhouse with 18 Ground Securing Pegs & 10 Plant Labels for Outdoors Frost Freeze Protection**MorTime**$13.59**4.4★**▲ 205%**](https://www.amazon.com/dp/B09VS35VRW) [**10 D 6.7 H Plant Protectors from Animals Garden Cloches for Seedlings Nursery Pots Durable Humidity Domes with Ventilation Holes Clear Plant Covers Mini Greenhouse for Plants 5-Pack**RooTrimmer**$21.94**4.4★**▲ 118%**](https://www.amazon.com/dp/B0DSPV58N5) [**RooTrimmer 6 Inch Clear Nursery Pots with Humidity Dome 15 Pack Durable Seed Starting Pot with Drainage Holes Transparent Plastic Plant Seedling Pots for Indoor Gardening Plants**RooTrimmer**$26.67**4.4★**▲ 75%**](https://www.amazon.com/dp/B0DRNZYHH9) [**Yield Lab 7 Inch Clone Dome - 5 Pack Humidity Vented Domes Plant Growing Propagation Dome for Seedling Germination Soil & Hydroponic Horticulture**Yield Lab**$33.97**4.3★**▲ 55%**](https://www.amazon.com/dp/B01M3YQRRY) [**Bonviee 5 Packs Seed Starter Tray with Grow Light Elevated Seedling Starter Trays Kits with Adjustable Humidity Domes and Clear Cell Tray 12 Full Spectrum led lamp Beads for Plants Indoor-Clear**Bonviee**$19.59**4.4★**▲ 50%**](https://www.amazon.com/dp/B0CDX3GLDS)
**~~View all trending →~~**
## **What buyers say about humidity dome**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**22%
*“Grows good”*
**Quality-Overall**15%
*“Quality product; arrived on time”*
**Value For Money**10%
*“Worth every penny”*
**Size-Overall**7%
*“I love the size of these”*
**Strength**7%
*“Sturdy construction and easy to assemble”*
**Advertised Vs Actual Product**7%
*“As Advertised”*
**Ease Of Use**5%
*“EASY TO USE”*
**Durability**3%
*“Super durable”*
**Assembly/Installation**3%
*“Easy set up”*
**Moist/Dry**2%
*“the lid stays moist”*
### **What buyers complain about **
**Size-Overall**19%
*“Really small”*
**Strength**9%
*“Not sturdy”*
**Quality-Overall**9%
*“Poor quality”*
**Plant Growth**5%
*“seeds have sprouted”*
**Thickness**5%
*“lids were thicker”*
**Value For Money**5%
*“a little pricey”*
**Functionality-Overall**3%
*“Item did not function properly”*
**Durability**3%
*“would break easy”*
**Heating**3%
*“It got really hot”*
**Moist/Dry**2%
*“Already wet”*
### **Top return reasons **
**Size-Overall**56%
**Advertised Vs Actual Product**9%
**Value For Money**5%
**Defective Material/Parts**5%
**Functionality-Overall**4%
**Material Quality**3%
**Strength**3%
**Quality-Overall**3%
**Plant Growth**3%
**Heating**2%
## **Common questions**
- **Is humidity dome profitable to sell on Amazon United States?**
- The niche generates $189K/yr across 64 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is -9.9%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the humidity dome niche?**
- 33 brands and 55 sellers compete. The top 5 products take 30% of clicks and top 5 brands hold 48% of demand.
- **What do buyers complain about in humidity dome?**
- Top complaints mined from reviews: Size-Overall, Strength, Quality-Overall. The return rate is 1.3%.
- **When does demand for humidity dome peak?**
- Demand peaks in Mar–Apr; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the humidity dome niche?**
- Listings span $7.90–$89.78; the average listing price is $28.29 (sweet spot $15–$100). The average incumbent carries 1,567 reviews — the moat a new listing must climb.
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