Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply
- Brand:
- Coway
- Model Number:
- AIRMEGA 400 FILTER SET
- UPC:
- 826439150044
- EAN:
- 0826439150044
- ASIN:
- B01C9RIAE4
- Walmart SKU:
- 134675268
Key Takeaway
Current pricing at $114.52 reflects recent market activity, running 0.0% below the 90-day average.
Third-Party Seller Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$114.99 | |
|
Lowest Price
|
$89.00 | |
|
Most Recent Price
|
$99.27 |
- Average Price
- $105.21
- First Tracked
- Last Update
Walmart.com Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$114.52 | |
|
Lowest Price
|
$73.72 | |
|
Most Recent Price
|
$114.52 |
- Average Price
- $83.92
- First Tracked
- Last Update
Price Analysis
Tracking History: We have tracked Coway Airmega 400/400S Air Purifier Genuine Replacement Filter Set, HEPA and Active Carbon Filter, 1-Year Supply since 12/21/2022. The most recent price update was on Oct 25, 2025.
Price Range: Over the past 90 days, the price has ranged from $73.72 (lowest on 12/21/2022) to $114.52 (highest on 10/25/2025). The average price during this period is $83.92.
Current Trend: No Walmart.com pricing data available for analysis.
Customer Insights: Rated 4.6/5 from 69 reviews.
Customer Reviews
69 reviewsCustomer Reviews
4.6
Based on 69 reviews
Filter Reviews:
Sort By:
Showing 10 of 69 reviews
Super Impressive Filters
Acquired a 400s from a small business that was shutting down and clearing house. It needed new filters, which came very quickly upon ordering. I am amazed at how quickly the air space in my apartment air became clean. I am grateful to have this device, especially now with the fires in Los Angeles. Our indoor air quality has been prestine, despite all the smoke, duct & Ash floating about outside
Was this review helpful?
Yearly Filter Change
It's amazing how a simple filter change can transform the air in my entire home. A friend who regularly visits, stopped in about a week after the filter change and instantly commented on how fresh my home smelled. He''s a person living with asthma and truly appreciates clean air. That's why I never miss the yearly filter change. It seems expensive, but for a year of fresh, healthy air, that even my guests can appreciate, it a very small price to pay.
Was this review helpful?
It Works
I have allergies and the Airmega filters help keep the air inside my house free of pollen, dust, and any other allergens lurking in the air. I have a small house and it works for the entirety.
Was this review helpful?
Get the job done
The filters for the air filter model 400S do their job providing better air quality especially we have an open kitchen.
Was this review helpful?
Great Filters
I'm very please with these filters! They fit extremely well, nice and snug, no dust is getting by them.
Was this review helpful?
Well worth the money!
I love these filters. We have 3 dogs & a cat inside and you can't smell them when I keep the filters clean! I sweep these with our shop vac when the other (washable) filters need cleaned and I change these once a year.
Was this review helpful?
Best filters
OEM replacement with no odors as the original ones lasted pretty long
Was this review helpful?
Helps A Lot
Meets or exceeds all expectations, runs quiet, easy to install
Was this review helpful?
Affordable and long lasting!
Super easy to swap out and long lasting HEPA filters.
Was this review helpful?
Great product
Exactly as ordered. My allergies have been so much better since I purchased the air purifier. Worth ever penny
Was this review helpful?
Price History
Recent Price Changes
Detailed price history for the past 90 days
Walmart.com Pricing
0 recordsNo Walmart.com pricing data available for analysis.
No Walmart price history available in the past 90 days
Third-Party Seller Pricing
18 recordsThird-Party Sellers prices have ranged from $99.27 (Jul 27) to $109.99 (Jul 21) over the past 90 days. Current price is close to the 90-day average of $106.98.
| Date | Price | Change | % Change |
|---|---|---|---|
| $99.27 | $+0.00 | +0.0% | |
| $99.27 | $+0.00 | +0.0% | |
| $99.27 | $-5.22 | -5.0% | |
| $104.49 | $-5.50 | -5.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+5.50 | +5.3% | |
| $104.49 | $+0.00 | +0.0% | |
| $104.49 | $+0.00 | +0.0% | |
| $104.49 | $-5.50 | -5.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | $+0.00 | +0.0% | |
| $109.99 | — | — |
