KNKA APH4000 Air Purifier, White vs Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
KNKA APH4000 Air Purifier, White
Rooms around 350 sq ft where an auto and pet mode matter
KNKA's APH4000 pulls air through front and back filter cartridges and adds a PM2.5 sensor, auto, ECO, pet and sleep modes, and a pop-out aroma box. KNKA lists a 226 CFM smoke CADR and 4.8 air changes an hour in 350 square feet. Plan on two filters every 3 to 6 months.
Published specifications
- KNKA page: CADR smoke/dust 226 CFM, pollen 244 CFM
- KNKA page: 4.8 ACH in 350 sq ft; 1 ACH in 1,695
- Manual: two composite filters, front and back
- KNKA page: replace filters every 3 to 6 months
- Manual: 12.36 x 8.15 x 17.09 in, 9.68 lb, 45 W
- Listing: two-year warranty
Strengths
- Dual intakes and two filter cartridges
- Auto, ECO, pet and sleep modes with a PM2.5 display
- Filter indicator turns red at 5 per cent remaining
Caveats
- Two filters every 3 to 6 months
- Manual gives conflicting washing guidance
- No clearance distance or warranty terms in the manual
Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave
Rooms near 392 sq ft where Wi-Fi control and auto mode are wanted
Winix's 5520 stacks a washable pre-filter, an AOC carbon filter and a True HEPA filter, plus switchable PlasmaWave. It is AHAM Verified for 392 square feet; the 1,882 figure is one air change per hour. Replace Filter Q about yearly, keep 12 to 18 inches clear, and note the two-year warranty with no repair service.
Published specifications
- Winix page: AHAM Verified 392 sq ft at 4.8 air changes per hour
- Winix page: CADR dust 252, pollen 247, smoke 253
- Manual: Filter Q 1712-0123-00, HEPA and carbon about 12 months
- Manual: clean pre-filter every 14 days
- Manual: 12–18 in from walls; 120 V, 65 W
- Manual and Winix page: two-year limited warranty
Strengths
- AHAM Verified room size and CADR published by the maker
- Auto mode, sleep mode and five fan speeds per Winix's page
- One replacement filter SKU listed in the manual
Caveats
- Verified room size is 392 sq ft, far below the 1,882 headline
- Manual says no repair service and no spare parts after warranty
- Needs 12 to 18 inches clear from walls and electronics
Read the full Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave guide
How to choose between them
Choose the KNKA APH4000 Air Purifier, White if your situation matches: Rooms around 350 sq ft where an auto and pet mode matter. Its main caveat: Two filters every 3 to 6 months.
Choose the Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave if your situation matches: Rooms near 392 sq ft where Wi-Fi control and auto mode are wanted. Its main caveat: Verified room size is 392 sq ft, far below the 1,882 headline.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- KNKA product page for the APH4000 air purifier Source for KNKA APH4000 Air Purifier, White
- KNKA APH4000 air purifier user manual Source for KNKA APH4000 Air Purifier, White
- Winix product page for the 5520 air purifier Source for Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave
- Winix 5510 and 5520 user manual supplied with the listing Source for Winix 5520 4-Stage True HEPA Air Purifier with Wi-Fi and PlasmaWave
Primary sources checked .