Categories/Air Purifiers/WINIX 5520 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi
at risk

Buy-box price is 28.0% below MSRP and a 1P seller controls the listing

WINIX 5520 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi

WINIX 5520 Air Purifier for Home Large Room Up to 1881 Ft in 1 Hr, True HEPA with WiFi

Winix·
ID 15963010076

The WINIX 5520 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 $179.99 to $249.99 against an MSRP/MAP of $249.99. The product's pricing health is currently flagged as at risk.

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

Price Overview

FLOOR PRICE ($)

$179.99

MAX PRICE ($)

$249.99

AVG PRICE ($)

$186.99

EROSION (%)

28.00%

MSRP/MAP ($)

$249.99

Price erosion from MSRP
Severe28.00% below MSRP
MinimalModerateSevere

The product hit a low of $179.99, 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 28.00% erosion.

Tracking window: Jul 1, 2026 – Jul 31, 2026

Buy box distribution

90%1P
1P · 1 seller, 90% share3P · 2 sellers, 10% share
Sellers won
2 of 3tracked sellers
Changed hands
2 timesover 30 days
SellerConditionPrice vs MSRPBuy box daysErosion
1PWalmart.com· Top
New
$179.99
−$70.00 below MSRP
27d (90%)
28.00%
3PSylvane
New
$249.99
at MSRP
3d (10%)
0.00%
3PWalmart
New
$161.00
−$88.99 below MSRP
0d (0%)
35.60%
Erosion severity: green under 10%, yellow 10–20%, red above 20%

The Buy Box for WINIX 5520 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 90% share, winning the Buy Box for 27 out of 30 tracked days. Only 2 of 3 total sellers have won the Buy Box.

Seller density vs. price erosion

Buy-box priceActive sellersMSRP $249.99
Peak seller pressure3 sellers on Jul 9Highest count during tracking window
Price impact at peak$0.00$179.99 → $179.99
Price trendRecoveringBased on trailing 30 days
Seller proliferation↑ Increasing+0.0/day avg · +1 net

Buy-box price stayed between $179.99 and $249.99, largely stable over the period. It entered the period already $70.00 below MSRP ($249.99), before any crowding pressure arrived. Seller count peaked at 3 on 07/09 — adding +1 net seller over the full period. Seller activity and pricing have both been steady — no acute competitive pressure detected.

Seller churn and influx

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

New entrants (0)

No new sellers in recent period

Exited (0)

No sellers exited in recent period

Persistent (3)

Key Findings

at risk
Price Erosion

$70.00

Severe28.0% below MSRP

Severe erosion — floor is $70.00 (28.0%) below MSRP; the product is well below its intended price point and brand integrity is at risk.

Seller Activity

2 3P Sellers

ControlledStable

3P activity is limited to 2 sellers — controlled.

Buy Box

Walmart.com

Contested1P · 27 wins

3P sellers win the buy box 10.0% of the time; Sylvane leads with 3 days at $249.99 — easing.

Recommended Actions
1

Immediate pricing intervention required — The lowest price has dropped to $179.99, which is 28.0% below MSRP ($249.99).

2

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

3

Escalate directly with Walmart — The lowest price has dropped to $161.00, which is 28.0% below MSRP ($249.99).

Free 7-Day ReportTrack any product listing

Get a Free MAP & Buy Box Compliance Report for Your Product

Enter your product URL and MAP price. We will monitor 3P seller crowding, Buy Box shifts, and price erosion over the next 7 days and email you a comprehensive compliance report.

Track Your Product

Free