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

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at risk
walmart.comID 15963010076
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

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 Buybox price ranged between 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.

Showing Results for Past 31 days
Last updated Jul 31, 2026
Price Overview
Severe erosion

FLOOR PRICE ($)

$179.99

MAX PRICE ($)

$249.99

AVG PRICE ($)

$186.99

SEVERE EROSION

28.00%

MSRP/MAP ($)

$249.99

Price erosion from MSRP28.00% below MSRP
Jul 1, 2026Jul 31, 2026

The product is currently selling at $179.99, following a peak of $249.99 during the tracking period. Compared to its MSRP of $249.99, the current price reflects a severe variance of 28.0% erosion.

Buy Box Distribution

Buy Box Share

1P90% · 27d
3P10% · 3d

1P leads with 90% of Buy Box days

1P 1 seller3P 2 sellers
Seller
Condition
Current Price ($)
Buy Box Days
Erosion (%)
1PWalmart.com· Top
New
$179.99
−$70.00
27(90%)
28.00%
3PSylvane
New
$249.99
+$0.00
3(10%)
0.00%
3PWalmart
New
$161.00
−$88.99
0(0%)
35.60%
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 sellers (scaled)MSRP $249.99

Peak Seller Pressure

3 sellers on Jul 9

Price held at $179.99

Price Trend

Stable

5.6% recovery vs floor

Seller Proliferation

→ Stable

+0.03/day avg · +1 net

Peak +2 on 07/09

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)
1PWalmart.com

27d · avg $179.99 · 27 Buy Box Wins · stable

3PSylvane

22d · avg $249.99 · 3 Buy Box Wins · stable

3PWalmart

6d · avg $161.00 · 0 Buy Box Wins · stable

New Entrants — Sellers who appeared for the first time in the recent period.Exited — Sellers active earlier but absent in the recent period.Persistent — Sellers present throughout both the early and recent periods.
Key Findings
at risk
Price Erosion

$70.00

Severe · 28.0% 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

Controlled

3P activity is limited to 2 sellers — controlled.

Buy Box

Walmart.com

1P · 27 wins · $179.99

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).