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Air Filtration Performance
Customers are generally positive about the air filtration performance of the Coway AP-1720H True HEPA Air Purifier. Some have noted that it effectively pulls smells and cleans the air quickly while others mention that it's attractive design makes it a nice addition to their home. However, some customers have mentioned that the unit struggles with filtering out hot drier air at ground level.
Pre-Filter Functionality
Customers have mixed opinions regarding the pre-filter functionality of the Coway AP-1720H air purifier. While some users report positive experiences with the pre-filter and its ease of cleaning, others question its necessity and express skepticism towards its impact on the product's price.

Highlights
Quality
It keeps track of the air quality & it works (it tells you when something is introduce into the air via simple active color bar).
I've had the airmega 250 for over a year now and it has worked flawlessly, quietly (except when it goes into overdrive when i a... Read More
They've become flimsy & flawed (even filters no longer seating well).
Before i even purchase this unit, i spent 2 days in the new apt.
Price
I think the replacement is $26 & you only need 1 every year.
Crazy/ so much cheaper to operate on top of really cleaning lots of air.
Competitiveness
I am almost never aware of the 250, the main exception is when a smoky haze escapes the kitchen, usually when i am grilling or ... Read More
Overview
- How are reviewers describing this item?
down, red, through and high. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 6.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 1,028 reviews as of our last analysis date on Mar 28 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Im very very sick have been for more than a year i needed something effective affordable
Posted by a reviewer on Amazon
Because its ground level what flows in is almost impossible to get out and hot drier air flows in down
Posted by a reviewer on Amazon
Ill tell you what that is in a moment
Posted by a reviewer on Amazon
You have to do deep research on a product like this theres so many options most are useless im sorry but its true
Posted by a reviewer on Amazon
It seems the old honeywell units were legit really pulled dust etc
Posted by a reviewer on Amazon
Theyve become flimsy flawed even filters no longer seating well
Posted by a reviewer on Amazon
I punched the company name in didnt even know what they looked like
Posted by a reviewer on Amazon
A unit is only as good as the convection it can create this is limited by irregularities in any space—lest youre buying a hulking industrial unit
Review Count History
Price History
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