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Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6

Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6

Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6
$252.99
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Features

  • Coway Mighty (AP-1512HH) is designed to accommodate room sizes up to 361 sq.ft (CADR: Dust 246 / Pollen 240 / Smoke 233 cb. ft.).
  • 4 Stage Filtration System (Pre-filter, Deodorization filter, True HEPA filter, Vital Ion) captures and reduces up to 99.97% of particles 0.3 microns in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds and reduces odor.
  • Coway Mighty pollution sensor communicates indoor air quality in real-time. The brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. And it features a timer, and filter lifetime indicator.
  • Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.
  • Timer feature allows the machine to run 1/4/8 hours before automatically powering off.
  • Filter replacement indicator checks both Pre-filter and HEPA filter respectively to let users be aware of when to wash or replace the filter.
  • 77 W power consumption and quiet operation with noise level ranging from 24.4 dB to 53.8 dB.

Description

The mighty air purifier is compact by design but is equipped with cutting edge features to keep your indoor air clean. Equipped with a HEPA efficiency rating of 99. 97 percent, it uses a four-stage filtration system to effectively eliminate odors and pollutants. This mighty machine includes an air quality indicator through our particle sensing technology that will kick your air purifier into high gear when needed. And when pollution is not detected for 30 minutes, the fan will automatically stop to save energy. CFM 268.39


Product Dimensions 9.6 x 16.8 x 18.3 inches


Item Weight 12.76 pounds


Manufacturer Coway


ASIN B01728NLRG


Item model number AP-1512HH


Customer Reviews 4.7 out of 5 stars 2,774 ratings 4.7 out of 5 stars


Best Sellers Rank #286 in Home & Kitchen (See Top 100 in Home & Kitchen) #13 in HEPA Filter Air Purifiers


Is Discontinued By Manufacturer No


Material Care Instructions User Manual


Is Assembly Required? No


Number of Pieces 1


Warranty Description 3 year manufacturer's limited warranty.


Batteries Required No


Included Components AP-1512HH(W) Filter Set, User Manual


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • Coway Mighty (AP-1512HH) is designed to accommodate room sizes up to 361 sq.ft (CADR: Dust 246 / Pollen 240 / Smoke 233 cb. ft.).
  • 4 Stage Filtration System (Pre-filter, Deodorization filter, True HEPA filter, Vital Ion) captures and reduces up to 99.97% of particles 0.3 microns in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds and reduces odor.
  • Coway Mighty pollution sensor communicates indoor air quality in real-time. The brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. And it features a timer, and filter lifetime indicator.
  • Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.
  • Timer feature allows the machine to run 1/4/8 hours before automatically powering off.
  • Filter replacement indicator checks both Pre-filter and HEPA filter respectively to let users be aware of when to wash or replace the filter.
  • 77 W power consumption and quiet operation with noise level ranging from 24.4 dB to 53.8 dB.

Description

The mighty air purifier is compact by design but is equipped with cutting edge features to keep your indoor air clean. Equipped with a HEPA efficiency rating of 99. 97 percent, it uses a four-stage filtration system to effectively eliminate odors and pollutants. This mighty machine includes an air quality indicator through our particle sensing technology that will kick your air purifier into high gear when needed. And when pollution is not detected for 30 minutes, the fan will automatically stop to save energy. CFM 268.39


Product Dimensions 9.6 x 16.8 x 18.3 inches


Item Weight 12.76 pounds


Manufacturer Coway


ASIN B01728NLRG


Item model number AP-1512HH


Customer Reviews 4.7 out of 5 stars 2,774 ratings 4.7 out of 5 stars


Best Sellers Rank #286 in Home & Kitchen (See Top 100 in Home & Kitchen) #13 in HEPA Filter Air Purifiers


Is Discontinued By Manufacturer No


Material Care Instructions User Manual


Is Assembly Required? No


Number of Pieces 1


Warranty Description 3 year manufacturer's limited warranty.


Batteries Required No


Included Components AP-1512HH(W) Filter Set, User Manual


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • Coway Mighty (AP-1512HH) is designed to accommodate room sizes up to 361 sq.ft (CADR: Dust 246 / Pollen 240 / Smoke 233 cb. ft.).
  • 4 Stage Filtration System (Pre-filter, Deodorization filter, True HEPA filter, Vital Ion) captures and reduces up to 99.97% of particles 0.3 microns in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds and reduces odor.
  • Coway Mighty pollution sensor communicates indoor air quality in real-time. The brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. And it features a timer, and filter lifetime indicator.
  • Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.
  • Timer feature allows the machine to run 1/4/8 hours before automatically powering off.
  • Filter replacement indicator checks both Pre-filter and HEPA filter respectively to let users be aware of when to wash or replace the filter.
  • 77 W power consumption and quiet operation with noise level ranging from 24.4 dB to 53.8 dB.

Description

The mighty air purifier is compact by design but is equipped with cutting edge features to keep your indoor air clean. Equipped with a HEPA efficiency rating of 99. 97 percent, it uses a four-stage filtration system to effectively eliminate odors and pollutants. This mighty machine includes an air quality indicator through our particle sensing technology that will kick your air purifier into high gear when needed. And when pollution is not detected for 30 minutes, the fan will automatically stop to save energy. CFM 268.39


Product Dimensions 9.6 x 16.8 x 18.3 inches


Item Weight 12.76 pounds


Manufacturer Coway


ASIN B01728NLRG


Item model number AP-1512HH


Customer Reviews 4.7 out of 5 stars 2,774 ratings 4.7 out of 5 stars


Best Sellers Rank #286 in Home & Kitchen (See Top 100 in Home & Kitchen) #13 in HEPA Filter Air Purifiers


Is Discontinued By Manufacturer No


Material Care Instructions User Manual


Is Assembly Required? No


Number of Pieces 1


Warranty Description 3 year manufacturer's limited warranty.


Batteries Required No


Included Components AP-1512HH(W) Filter Set, User Manual


abunda_amazon_reviews Had this air purifier for all of 4 months. I was desperate to get an air purifier at the time because my allergies were so bad I was going several nights with little to no sleep. I had researched obsessively as I always do but a big hindrance was my budget which could only allow for $200 or less. Enter Coway... Worked immediately for my allergies but even from day one I noticed how loud it got when it was working on max speed. I delt with the noise since it helped clear the air until a few days ago it turned on as it does since it's on auto. It ramped up to max speed where it was loud as usual. A few moments later it started shaking violently, smoking and soon after started shooting out plastic shards through the top vent. It wouldn't stop until we had to unplug it. Scary situation especially when this happens around my pregnant wife. To compound the issue I tried contacting Coway about this with zero response. Then I tried contacting Amazon and and they had to tell me is that they couldn't help because it's already been 4 months. So now what do I do? I'm stuck $180 paperweight. You get what you pay for. You can get cheaper air purifiers without an auto setting but if you want the auto sensing feature pay more and get a quality unit.;;Reviewed in the United States on September 14, 2018;;1.0 out of 5 stars;;Cheap is cheap;;Michael Baxi;;;Bought open box from Amazon warehouse in November with the description, "like new, product will be in original packing, box is damaged". Came with all the plastic on it, filters still in bags. Initial setup was great, and it ran fine for about six months. Then one day my girlfriend and I were cooking dinner and a horrible noise came from the bedroom. At first it sounded like the cat knocked a bunch of CDs off of something but it kept going. We ran into the bedroom and it was shooting plastic shrapnel everywhere from the squirrelcage fan that was in the process of disintegrating. I shielded my face with a coat and dove into the room and yanked the cord. Took it apart to see what the hell happened and document the damage (it's really well put together, actually - six screws and two plugs). Took pics and called/emailed coway. They said they don't sell replacement parts and no RMA because it was used and because I took it apart. So I said that's too bad, and I won't be able to recommend this product or justify buying another one from them.;;Reviewed in the United States on May 6, 2019;;1.0 out of 5 stars;;Exploding fan and shrapnel;;Andrew Ritchie;;;I purchased this purifier to replace a very large and very loud Honeywell unit. While I suspect the throughput of the Honeywell was greater, the dramatic decrease in noise is a worthy trade off. The Conway's replacement filters are also significantly cheaper. I would purchase again. The addition of a few carefully placed vinyl stickers also creates the worlds largest iPod Nano (see pic);;Reviewed in the United States on June 19, 2017;;5.0 out of 5 stars;;Quiet, reasonable maintenance costs, great iPod;;Stig;;;Extremely dissatisfied by my "bad faith" experience with Coway. Since I live in China, a high-quality air purifier is extremely important to me. I had this Coway unit shipped to me in Beijing. After a period of weeks, my unit started making popping noises which I viewed as extremely dangerous. I contacted customer support and received the following response: Thank you for your patience. We do empathize with your situation, unfortunately, by using the unit in China you have voided your warranty. We apologize, but your Coway model is only available for sale and use in the US and Canada. Please note: Using the Coway outside the US or Canada will void your warranty. Fine print aside, I ordered directly from Coway and it was shipped to me here in China. There was no obvious disclaimer at any time that this would void the warranty. I view this as being very much in bad faith and highly inconsistent with the company's stated values and the CEO's public expressed desire to regain consumer trust in the wake of a 2016 scandal over product defects.;;Reviewed in the United States on June 19, 2018;;1.0 out of 5 stars;;Bad Faith;;Matthew Graham;;;I read quite a lot of reviews about this particular air purifier, and while they were all glowing and guided me to purchase one of these I was very disappointed with the one that I received (which I returned for a refund). This doesn't seem like a common complaint so I'm likely the victim of a damaged unit (perhaps during shipping), but the when the fan was on high it was obnoxiously loud and vibrated so hard that it scooted across the floor. I had the unit in my daughters upstairs room and we could hear the vibrations downstairs with music playing and loud talking. I suspect that the fan/motor may have come out of alignment at some point during the shipping process, or perhaps it was just a defective product. Whatever the case, this thing was twice as loud as our Honewell 50250 which has a reputation for being among the loudest air purifiers. Also, the air quality sensor seems sub par at the factory setting. I purposely dropped some dust around the unit to see if it would pick up anything and it never did. I also huffed directly into the sensor, beer breath and all, to see if I could active it. It wasn't until I adjusted to use the highest sensitivity settings that the unit finally started (quickly) picking up changes in air quality, and from that point on it had no issue switching gears when air quality degraded (like when my wife burns bacon every morning). Not a huge deal, but certainly something to be aware of. Finally, the air quality display light on the top is way too bright (illuminating nearby walls and ceilings) and can't be turned off. This seems to be common with most, if not all air purifiers, but one has to wonder what in the world these companies are thinking given that these things are expected to run 24/7 in bedrooms, particularly for allergy sufferers. Luckily this is easy to fix if you have a small book laying around (or duct tape), but still annoying, particularly since night lights affect quality of sleep. All that said, I'm strongly considering ordering another one and hoping that the first one that I got was just a fluke. I've spent weeks reading reviews and the test results of the Coway are very, very impressive. If not for the noise and vibration, I'd give it 4/5 stars.;;Reviewed in the United States on May 19, 2018;;2.0 out of 5 stars;;Obnoxiously loud and vibrated so hard (on high) that it danced across the room.;;Markus F. Hay

Shipping

This product includes free shipping to all US addresses.


Delivery

Orders placed now will arrive in 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Top Amazon Reviews


1.0 out of 5 stars
By Michael Baxi - Reviewed in the United States on September 14, 2018
Cheap is cheap
Had this air purifier for all of 4 months. I was desperate to get an air purifier at the time because my allergies were so bad I was going several nights with little to no sleep. I had researched obsessively as I always do but a big hindrance was my budget which could only allow for $200 or less. Enter Coway... Worked immediately for my allergies but even from day one I noticed how loud it got when it was working on max speed. I delt with the noise since it helped clear the air until a few days ago it turned on as it does since it's on auto. It ramped up to max speed where it was loud as usual. A few moments later it started shaking violently, smoking and soon after started shooting out plastic shards through the top vent. It wouldn't stop until we had to unplug it. Scary situation especially when this happens around my pregnant wife. To compound the issue I tried contacting Coway about this with zero response. Then I tried contacting Amazon and and they had to tell me is that they couldn't help because it's already been 4 months. So now what do I do? I'm stuck $180 paperweight. You get what you pay for. You can get cheaper air purifiers without an auto setting but if you want the auto sensing feature pay more and get a quality unit.

1.0 out of 5 stars
By Andrew Ritchie - Reviewed in the United States on May 6, 2019
Exploding fan and shrapnel
Bought open box from Amazon warehouse in November with the description, "like new, product will be in original packing, box is damaged". Came with all the plastic on it, filters still in bags. Initial setup was great, and it ran fine for about six months. Then one day my girlfriend and I were cooking dinner and a horrible noise came from the bedroom. At first it sounded like the cat knocked a bunch of CDs off of something but it kept going. We ran into the bedroom and it was shooting plastic shrapnel everywhere from the squirrelcage fan that was in the process of disintegrating. I shielded my face with a coat and dove into the room and yanked the cord. Took it apart to see what the hell happened and document the damage (it's really well put together, actually - six screws and two plugs). Took pics and called/emailed coway. They said they don't sell replacement parts and no RMA because it was used and because I took it apart. So I said that's too bad, and I won't be able to recommend this product or justify buying another one from them.

5.0 out of 5 stars
By Stig - Reviewed in the United States on June 19, 2017
Quiet, reasonable maintenance costs, great iPod
I purchased this purifier to replace a very large and very loud Honeywell unit. While I suspect the throughput of the Honeywell was greater, the dramatic decrease in noise is a worthy trade off. The Conway's replacement filters are also significantly cheaper. I would purchase again. The addition of a few carefully placed vinyl stickers also creates the worlds largest iPod Nano (see pic)

1.0 out of 5 stars
By Matthew Graham - Reviewed in the United States on June 19, 2018
Bad Faith
Extremely dissatisfied by my "bad faith" experience with Coway. Since I live in China, a high-quality air purifier is extremely important to me. I had this Coway unit shipped to me in Beijing. After a period of weeks, my unit started making popping noises which I viewed as extremely dangerous. I contacted customer support and received the following response: Thank you for your patience. We do empathize with your situation, unfortunately, by using the unit in China you have voided your warranty. We apologize, but your Coway model is only available for sale and use in the US and Canada. Please note: Using the Coway outside the US or Canada will void your warranty. Fine print aside, I ordered directly from Coway and it was shipped to me here in China. There was no obvious disclaimer at any time that this would void the warranty. I view this as being very much in bad faith and highly inconsistent with the company's stated values and the CEO's public expressed desire to regain consumer trust in the wake of a 2016 scandal over product defects.

2.0 out of 5 stars
By Markus F. Hay - Reviewed in the United States on May 19, 2018
Obnoxiously loud and vibrated so hard (on high) that it danced across the room.
I read quite a lot of reviews about this particular air purifier, and while they were all glowing and guided me to purchase one of these I was very disappointed with the one that I received (which I returned for a refund). This doesn't seem like a common complaint so I'm likely the victim of a damaged unit (perhaps during shipping), but the when the fan was on high it was obnoxiously loud and vibrated so hard that it scooted across the floor. I had the unit in my daughters upstairs room and we could hear the vibrations downstairs with music playing and loud talking. I suspect that the fan/motor may have come out of alignment at some point during the shipping process, or perhaps it was just a defective product. Whatever the case, this thing was twice as loud as our Honewell 50250 which has a reputation for being among the loudest air purifiers. Also, the air quality sensor seems sub par at the factory setting. I purposely dropped some dust around the unit to see if it would pick up anything and it never did. I also huffed directly into the sensor, beer breath and all, to see if I could active it. It wasn't until I adjusted to use the highest sensitivity settings that the unit finally started (quickly) picking up changes in air quality, and from that point on it had no issue switching gears when air quality degraded (like when my wife burns bacon every morning). Not a huge deal, but certainly something to be aware of. Finally, the air quality display light on the top is way too bright (illuminating nearby walls and ceilings) and can't be turned off. This seems to be common with most, if not all air purifiers, but one has to wonder what in the world these companies are thinking given that these things are expected to run 24/7 in bedrooms, particularly for allergy sufferers. Luckily this is easy to fix if you have a small book laying around (or duct tape), but still annoying, particularly since night lights affect quality of sleep. All that said, I'm strongly considering ordering another one and hoping that the first one that I got was just a fluke. I've spent weeks reading reviews and the test results of the Coway are very, very impressive. If not for the noise and vibration, I'd give it 4/5 stars.

Recent Reviews


1.0 out of 5 stars
By Michael Baxi - Reviewed in the United States on September 14, 2018
Cheap is cheap
Had this air purifier for all of 4 months. I was desperate to get an air purifier at the time because my allergies were so bad I was going several nights with little to no sleep. I had researched obsessively as I always do but a big hindrance was my budget which could only allow for $200 or less. Enter Coway... Worked immediately for my allergies but even from day one I noticed how loud it got when it was working on max speed. I delt with the noise since it helped clear the air until a few days ago it turned on as it does since it's on auto. It ramped up to max speed where it was loud as usual. A few moments later it started shaking violently, smoking and soon after started shooting out plastic shards through the top vent. It wouldn't stop until we had to unplug it. Scary situation especially when this happens around my pregnant wife. To compound the issue I tried contacting Coway about this with zero response. Then I tried contacting Amazon and and they had to tell me is that they couldn't help because it's already been 4 months. So now what do I do? I'm stuck $180 paperweight. You get what you pay for. You can get cheaper air purifiers without an auto setting but if you want the auto sensing feature pay more and get a quality unit.

1.0 out of 5 stars
By Andrew Ritchie - Reviewed in the United States on May 6, 2019
Exploding fan and shrapnel
Bought open box from Amazon warehouse in November with the description, "like new, product will be in original packing, box is damaged". Came with all the plastic on it, filters still in bags. Initial setup was great, and it ran fine for about six months. Then one day my girlfriend and I were cooking dinner and a horrible noise came from the bedroom. At first it sounded like the cat knocked a bunch of CDs off of something but it kept going. We ran into the bedroom and it was shooting plastic shrapnel everywhere from the squirrelcage fan that was in the process of disintegrating. I shielded my face with a coat and dove into the room and yanked the cord. Took it apart to see what the hell happened and document the damage (it's really well put together, actually - six screws and two plugs). Took pics and called/emailed coway. They said they don't sell replacement parts and no RMA because it was used and because I took it apart. So I said that's too bad, and I won't be able to recommend this product or justify buying another one from them.

5.0 out of 5 stars
By Stig - Reviewed in the United States on June 19, 2017
Quiet, reasonable maintenance costs, great iPod
I purchased this purifier to replace a very large and very loud Honeywell unit. While I suspect the throughput of the Honeywell was greater, the dramatic decrease in noise is a worthy trade off. The Conway's replacement filters are also significantly cheaper. I would purchase again. The addition of a few carefully placed vinyl stickers also creates the worlds largest iPod Nano (see pic)

1.0 out of 5 stars
By Matthew Graham - Reviewed in the United States on June 19, 2018
Bad Faith
Extremely dissatisfied by my "bad faith" experience with Coway. Since I live in China, a high-quality air purifier is extremely important to me. I had this Coway unit shipped to me in Beijing. After a period of weeks, my unit started making popping noises which I viewed as extremely dangerous. I contacted customer support and received the following response: Thank you for your patience. We do empathize with your situation, unfortunately, by using the unit in China you have voided your warranty. We apologize, but your Coway model is only available for sale and use in the US and Canada. Please note: Using the Coway outside the US or Canada will void your warranty. Fine print aside, I ordered directly from Coway and it was shipped to me here in China. There was no obvious disclaimer at any time that this would void the warranty. I view this as being very much in bad faith and highly inconsistent with the company's stated values and the CEO's public expressed desire to regain consumer trust in the wake of a 2016 scandal over product defects.

2.0 out of 5 stars
By Markus F. Hay - Reviewed in the United States on May 19, 2018
Obnoxiously loud and vibrated so hard (on high) that it danced across the room.
I read quite a lot of reviews about this particular air purifier, and while they were all glowing and guided me to purchase one of these I was very disappointed with the one that I received (which I returned for a refund). This doesn't seem like a common complaint so I'm likely the victim of a damaged unit (perhaps during shipping), but the when the fan was on high it was obnoxiously loud and vibrated so hard that it scooted across the floor. I had the unit in my daughters upstairs room and we could hear the vibrations downstairs with music playing and loud talking. I suspect that the fan/motor may have come out of alignment at some point during the shipping process, or perhaps it was just a defective product. Whatever the case, this thing was twice as loud as our Honewell 50250 which has a reputation for being among the loudest air purifiers. Also, the air quality sensor seems sub par at the factory setting. I purposely dropped some dust around the unit to see if it would pick up anything and it never did. I also huffed directly into the sensor, beer breath and all, to see if I could active it. It wasn't until I adjusted to use the highest sensitivity settings that the unit finally started (quickly) picking up changes in air quality, and from that point on it had no issue switching gears when air quality degraded (like when my wife burns bacon every morning). Not a huge deal, but certainly something to be aware of. Finally, the air quality display light on the top is way too bright (illuminating nearby walls and ceilings) and can't be turned off. This seems to be common with most, if not all air purifiers, but one has to wonder what in the world these companies are thinking given that these things are expected to run 24/7 in bedrooms, particularly for allergy sufferers. Luckily this is easy to fix if you have a small book laying around (or duct tape), but still annoying, particularly since night lights affect quality of sleep. All that said, I'm strongly considering ordering another one and hoping that the first one that I got was just a fluke. I've spent weeks reading reviews and the test results of the Coway are very, very impressive. If not for the noise and vibration, I'd give it 4/5 stars.