The Best HEPA Air Purifier

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What is CADR?


Clean Air Delivery Rate (CADR) is the rating method assigned by the Association of Home Appliances Manufacturers. It portrays the apt suggestion of which air purifier is considered best depends on the size of the room. The five purifiers were tested out that guaranteed to clean around 360 sq. feet of tobacco smoke, dust, and pollen. I’ve considered the opinion of air specialists and physicians about the importance of HEPA filters before picking up the top two choices.


Best Choice:

·         Winix 5500-2 Air Cleaner with PlasmaWave Technology

Second Best Choice:
·         Coway 4-Stage Filtration System with Air Quality Indicator


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The Coway (top) has a nearly identical filtering system as the Winix (bottom).


What’s the need of it?


Studies conducted by the Environmental Protection Agency (EPA) shows that the air inside a home could be 4-5 times more contaminated than the air outside of the house. It is highly beneficial for patients suffering from Asthma or has an allergy. It is also beneficial for people living near a highway or other highly polluted area. These air purifiers use fans to cycle air through a series of filters to soak in the impurities and provide people with clean air to breathe in. But how do we know which filter would be the best choice? That all comes down to High-Efficiency Particulate Air (HEPA) and to make sure that it would fulfill the requirement of the size of the room to work optimally.



Why is Winix 5500-2 Air Cleaner with PlasmaWave Technology the best choice?

In reality, it was nearly impossible to distinguish between the two top choices. The performance is almost the same. The costs, in the long run, would even out. It’s just that Winix’s lower up-front costs and higher quality construction have made it to the top. Pre-filters are nearly the same with the same HEPA filters as their basic filters and special kind of charcoal filter to absorb distinct smells.
The sound registered at 61-64 decibels at maximum and usually silent in normal circumstances. Both the air purifiers have sensors and timers to measure air purity, with LED lights that shift from blue to red depends on the contamination of the air. On an auto setting, Winix uses its fan at the lowest when air quality is good, whereas Coway’s Eco setting just turns its fans off completely.
But there are also some differences among our top two picks. The advertising campaigns of both the purifiers make a unique differentiation between both of the purifiers. Winix claims in its advertisement that is “instantly neutralize airborne viruses, bacteria, chemical vapors, odors, and gases”, whereas Coway’s advertisers only seem to claim that its vital ion filter would only freshen the air. But the marketing slogans and techniques don't actually make them different than the other ones. But another major difference is that Winix actually priced itself $50 cheaper than the Coway, and we’ve seen its retail price for $100 less at Home Depot and on Amazon.

The other difference is related to looks and maintenance but even that isn't big of a difference. I would prefer the matte charcoal Winix as compared to the glossy Coway. Although the Coway is cuter in an alien-TV sort of way, the taller, slimmer Winix ended up a more discreet room addition.
The opening of Winix was easy. The cover uses magnets to snap in and out of place and all the filters lock inside the next — the shape of all the pieces of filters is different altogether. This is not the case with the Coway, as it takes a couple of tries to put the front back on after you remove it. It’s not entirely difficult, but if you’re taking it apart every two weeks to clean then the Coway is more of a hassle.


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From left to right: The Winix U450, the GermGuardian AC9200WCA, the Honeywell HPA300, the Winix 5500-2, and the Coway 4-Stage Filtration System.

How much would the other three air purifiers cost you?

After comparing the features with the prices of five purifiers, the three was simply eliminated because of the somewhat unreasonable high price.
The Winix U450 (priced: $440) is slim and have a glossy white color, and the distinguished part is that its filters fit into a frame compared to the Winix 5500-2 whose filters you just measure one on top of the other inside the unit. But what the price is all about is 450 square feet of coverage, a full 100 more than the Winix 5500-2, and a pre-filter treated with Antimicrobial CleanCell Protection, which helps the reproduction of bacteria, fungi, and other polluted hazards.
Air purifier GermGuardian AC9200WCA (priced: $360) is just 18 extra square feet short in coverage than our best choices, but makes up for it in early-’90s Apple aesthetics and doubling down on germ phobia. It includes UV-C light technology, considered viable to eliminate microbes, but the jury is not convinced on its effectiveness.
The air purifier Honeywell was consistently recommended by our experts, and the Honeywell HPA300 (priced: $300 and $180 exclusively on Amazon) excels on paper. Its CADR ratings qualify it for the coverage of 465 square feet. But having this purifier, people would be only paying for the size of the air purifier and nothing else. The plastic grill can be snapped in half while trying to take it on and off. Another drawback is an unresponsive touch panel, and the same charcoal and HEPA filters as similar as of our best choices.

Source: Reviews

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