Categories/Air Purifiers/WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi
critical

Buy-box price is 50.6% below MSRP and a 1P seller controls the listing

WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi

WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi

Winix·
ID 15906851492

The WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi was tracked for 30 day(s). During this period, the Buy Box price ranged from $123.49 to $249.99 against an MSRP/MAP of $249.99. The product's pricing health is currently flagged as critical.

Tracked 31 days · past 30-day window
Last updated Jul 31, 2026

Price Overview

FLOOR PRICE ($)

$123.49

MAX PRICE ($)

$249.99

AVG PRICE ($)

$195.29

EROSION (%)

50.60%

MSRP/MAP ($)

$249.99

Price erosion from MSRP
Severe50.60% below MSRP
MinimalModerateSevere

The product hit a low of $123.49, following a peak of $249.99 during the tracking period. Compared to its MSRP of $249.99, the floor price reflects a severe variance of 50.60% erosion.

Tracking window: Jul 1, 2026Jul 31, 2026

Buy box distribution

70%1P
1P · 1 seller, 70% share3P · 3 sellers, 30% share
Sellers won
4 of 4tracked sellers
Changed hands
7 timesover 30 days
SellerConditionPrice vs MSRPBuy box daysErosion
1PWalmart.com· Top
New
$179.99
−$70.00 below MSRP
21d (70%)
28.00%
3PSylvane
New
$249.99
at MSRP
5d (17%)
0.00%
3PFour Axis
New
$222.99
−$27.00 below MSRP
3d (10%)
10.80%
3PAGF STORE
New
$229.50
−$20.49 below MSRP
1d (3%)
8.20%
Erosion severity: green under 10%, yellow 10–20%, red above 20%

The Buy Box for WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi is primarily held by Walmart.com (1P) with a 70% share, winning the Buy Box for 21 out of 30 tracked days. All 4 of 4 total sellers have won the Buy Box.

Seller density vs. price erosion

Buy-box priceActive sellersMSRP $249.99
Peak seller pressure3 sellers on Jul 1Highest count during tracking window
Price impact at peak−$20.49$249.99$229.50
Price trendErodingBased on trailing 30 days
Seller proliferation↓ Decreasing-0.0/day avg · -1 net

Buy-box price declined from $229.50 to $179.99 — a $49.51 drop over 30 days. It entered the period already $20.49 below MSRP ($249.99), before any crowding pressure arrived. Seller count peaked at 3 on 07/01, easing off since — adding -1 net seller over the full period. The crowding was short-lived — sellers came in, didn't find enough margin to stay, and pulled back.

Seller churn and influx

Comparing sellers before Jul 29 vs last 3 days of 30-day tracking period

2 3P sellers exited the listing — channel cleanup signal.

2 sellers exited with no new entrants — competitive pressure easing.

New entrants (0)

No new sellers in recent period

Exited (2)
Persistent (2)

Key Findings

critical
Price Erosion

$126.50

Severe50.6% below MSRP

Severe erosion — floor is $126.50 (50.6%) below MSRP; the product is well below its intended price point and brand integrity is at risk.

Seller Activity

3 3P Sellers

Crowded2 exited

3 third-party sellers active — channel showing crowding pressure, exits outnumbering arrivals.

Buy Box

Walmart.com

Hijacked1P · 21 wins

Walmart.com (1P) dominates the buy box with 21 wins at $179.99, 28.0% below MAP — though pressure is easing.

Recommended Actions
1

Immediate pricing intervention required — The lowest price has dropped to $123.49, which is 50.6% below MSRP ($249.99).

2

Monitor buy-box ownership daily — 3P sellers captured 30.0% of buy-box snapshots across the tracking period.

3

Prioritise enforcement action against Sylvane, the highest-frequency 3P buy-box winner.

4

Escalate directly with Walmart — The lowest price has dropped to $123.49, which is 50.6% below MSRP ($249.99).

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