protec humidifier filter
Skip itSoft demand (-54.4% this quarter) — this niche doesn't clear our bar today.
Conversion
Incredible16.5%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Avg price
Great$19.69avg listing price — sweet spot $15–$100
Price range
Great$10.99–$32.60cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,159.38avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Market size
Bad$41K$41K/yr · 13K searches
Competition
Bad92%top-5 click share — a locked-up shelf
Growth
Bad-54.4%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, protec humidifier filter is a $41K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 34/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
protec humidifier filter market data
- Units sold / yr
- 3K–3K
- avg 250–500/product
- Revenue / yr
- $49K–$59K
- units × avg price
- Conversion rate
- 16.5%
- Avg BSR
- #2,163
- Page quality
- 0%
- Prime
- 63%
- Sponsored
- 75%
- Out of stock
- 11.1%
- Avg brand age
- 86 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
16
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
92%
Top 20: 100%
Open market
0%
- Protec41%
- Alocs28%
- Ximoon23%
- UpStart Components8%
Demand & seasonality
Weekly Amazon search volume, last 109 weeks — -54.4% search growth over the last 90 days.Peak months: Jan, Feb, Mar · busiest ÷ quietest = 6.9×
Top protec humidifier filter search terms
- protec pwf2 replacement wicking filter6K/yr
- protec humidifier filter4K/yr
- protec pwf2 filter for vicks humidifier2K/yr
Top protec humidifier filter 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.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Protec Extended Life Humidifier Replacement Filter 1 Count
Protec$11.764.5★6,332 rev
WF2 Humidifier Filter for Kaz Vicks - V3100 V3500 V3700 V3800 V3900 3020 Series Protec PWF2 VEV400 Cool Mist Vaporizer Humidifiers (Pack of 4) White
Alocs$19.074.7★370 rev
Ximoon WF2 Humidifier Filter Replacement for Vicks Kaz Humidifier 4 Pack
Ximoon$20.104.7★2,117 rev
Protec Extended Life Humidifier Replacement Filter 3 Pack
Protec$22.994.5★6,332 rev
Ximoon WF2 Humidifier Filter Replacement for Vicks Kaz Humidifier 2 Pack
Ximoon$15.174.7★2,117 rev
Newest
by launch date
6x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$24.861 rev
8x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$32.602 rev
2x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$10.994 rev
WF2 Humidifier Filter for Kaz Vicks - V3100 V3500 V3700 V3800 V3900 3020 Series Protec PWF2 VEV400 Cool Mist Vaporizer Humidifiers (Pack of 4) White
Alocs$19.07370 rev
Ximoon WF2 Humidifier Filter Replacement for Vicks Kaz Humidifier 4 Pack
Ximoon$20.102,117 rev
Trending
90-day click momentum8x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$32.605.0★
6x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$24.865.0★
2x WF2 Filter Fits Protec PWF2 Wicking Filter For Vicks Humidifier VEV400
UpStart Components$10.995.0★
Ximoon WF2 Humidifier Filter Replacement for Vicks Kaz Humidifier 4 Pack
Ximoon$20.104.7★
Protec Extended Life Humidifier Replacement Filter 1 Count
Protec$11.764.5★
What buyers say about protec humidifier filter
What buyers praise and complain about, mined from review topics.What buyers love
“Just what i needed”
“Amazing fit”
“We have had no issues with these filters”
“Great deal”
“No complaints”
“Fits in my humidifier”
“nice color”
“Worked perfectly with my humidifier”
What buyers complain about
“Did not fit”
“Wrong advertising information”
“Perfect replacement, wife bought wrong humidifier. wrong being one that needs a filter to begin with”
“The filter did not fit my humidifier”
Top return reasons
Common questions
- Is protec humidifier filter profitable to sell on Amazon United States?
- The niche generates $41K/yr across 8 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -54.4%. Flapen's verdict: Skip it (34/100).
- How competitive is the protec humidifier filter niche?
- 4 brands and 16 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in protec humidifier filter?
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Filtration. The return rate is 0.8%.
- When does demand for protec humidifier filter peak?
- Demand peaks in Jan–Feb–Mar; the busiest month runs 6.9× the quietest.
- What does it cost to enter the protec humidifier filter niche?
- Listings span $10.99–$32.60; the average listing price is $19.69 (sweet spot $15–$100). The average incumbent carries 2,159 reviews — the moat a new listing must climb.