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BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ Auto

4.5 4.5 out of 5 stars 6,353 ratings

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211+ Auto

Purchase options and add-ons

Color White
Brand Blueair
Product Dimensions 13"D x 13"W x 20"H
Floor Area 550.0
Specification Met Energy Star Certified, AHAM Certified, CARB Certified
Power Source
Corded Electric
Item Weight
3.33 Kilograms
Control Method
Touch
Filter Type
Activated Carbon

About this item

  • AUTO ADJUSTS SO YOU CAN REST EASY: One touch auto mode uses a particle sensor to monitor pollutant levels and adjusts fan to ensure optimal air quality; LED indicator displays air quality status as excellent (blue), moderate (orange) or polluted (red)
  • CLEAN AIR IN MINUTES: Blueair’s HEPASilent dual filtration delivers up to 45% faster cleaning and up to 67% less noise than traditional HEPA filtration alone; Quickly cleans 550sqft large room in about 12.5 min or up to 2640sqft XL space in 60min, on high
  • RATED BEST FOR LOWEST ANNUAL ENERGY CONSUMPTION: Quieter (23 dB) than whisper on low; ENERGY STAR rated - uses less energy (4W) than an LED lightbulb on low so it’s kind to your wallet and the planet
  • REMOVES 99.99% OF COMMON ALLERGENS: Helps reduce allergens and pollutants that trigger allergy and asthma symptoms
  • REMOVES ODOR & PARTICLES DOWN TO 0.1 MICRON: Ideal for smoke & smog during wildfire season; Removes 99.97% of airborne particles like smoke, dust, viruses and pet dander, while the carbon filter traps light household odors from smoking, pets and cooking
  • MOST AWARDED AIR PURIFIER BRAND IN THE US: Blue Pure 211 plus Auto has won Good Housekeeping – 10 Best Air Purifiers of 2021, Best Overall Air Purifier
  • INDEPENDENTLY TESTED FOR PERFORMANCE & SAFETY, ZERO OZONE: AHAM Verifide for CADR; Ozone Safety Standards Certified by CARB; Zero Ozone Verified (<5 ppb) by Intertek Sustainability Program; Trusted Education Partner of British Health Professional Academy
  • GENUINE FILTERS FOR OPTIMAL PERFORMANCE: Replace your filter every 6 months to ensure proper functionality & only use genuine Blueair filters; Shop 211 plus Auto replacement filter: B08WWS6XSG; Upgrade to SmokeBlock filter for enhanced removal: B0B453ZDZ6

Customer ratings by feature

Sleep mode
4.4 4.4
Noise level
4.4 4.4
Maneuverability
4.3 4.3
Easy to use
4.3 4.3

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BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ Auto
Blueair BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ Auto
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Price$339.99-12% $220.00
List:$249.99
$189.99-8% $110.00
List:$119.99
-23% $267.89
List:$349.99
-20% $79.99
List:$99.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Noise level
4.4
4.4
4.5
4.2
4.2
4.2
Easy to use
4.3
4.3
4.7
4.7
4.7
4.1
Maneuverability
4.3
4.3
4.4
4.4
4.5
Sleep mode
4.4
4.4
4.7
4.6
Scent
4.1
4.1
4.2
4.2
Sold By
Amazon.com
wacky jacky
NEW66
Amazon.com
Amazon.com
Amazon.com
filter type
Activated Carbon
Pre-Filter
HEPA
Activated Carbon
Activated Carbon
Activated Carbon
floor area
1086 square feet
100 square feet
635 square feet
432 square feet
control method
touch
touch
touch
touch
application
touch
power source
Corded Electric
Corded Electric
ac
Corded Electric
Corded Electric
Corded Electric
particle retention size
0.1 micron
0.01 micron
0.3 micron
noise level
23 decibels
23 decibels
22 decibels
46 decibels
23 decibels
24 decibels

From the brand

Product guides and documents


From the manufacturer

Features

Low noise and energy consumption

low noise

Low noise level

Cleans the air with noise levels no louder than a whisper on low (23 dB) and with less noise than a normal conversation on high (56 dB).

low energy

Low energy consuption

ENERGY STAR certified for energy efficiency (4-38 W) - certified room air purifiers are 40% more energy-efficient than standard models.

prefilters

Compare Blue family air purifiers

211+ Auto

211+ Auto

211+

211+

311

311 Auto

411auto

411 Auto

411+

411+

411

411

121

121

Customer Reviews
4.5 out of 5 stars
6,353
4.7 out of 5 stars
12,301
4.5 out of 5 stars
6,353
4.6 out of 5 stars
7,024
4.5 out of 5 stars
2,312
4.6 out of 5 stars
9,556
4.5 out of 5 stars
576
Recommended Room Size
550 ft² 540 ft² 388 ft² 190 ft² 185 ft² 161 ft² 620 ft²
CADR - Smoke
353 cfm 350 cfm 250 cfm 123 cfm 119 cfm 105 cfm 400 cfm
Auto Mode
AQI
Included Pre-Filter
Arctic Trail Dark Shadow, Diva Blue Arctic Trail Arctic Trail Dark Shadow Dark Shadow, Diva Blue Dark Shadow, Diva Blue
Metal Filter Housing
AHAM Verifide

Product Description

"Blue Pure 211+ Auto air purifier quickly cleans 550sqft large room in about 12.5 min or up to 2640sqft extra-large space in 60min, on high. Only Blueair air purifiers use HEPASilent™ technology, delivering maximum filtration with minimum noise. Combining mechanical filtration with electrostatic charging of particles produces clean air up to 45% faster with up to 67% less noise than traditional HEPA filtration alone. Delivers high performance with automated one-button control in a lightweight, compact package and includes a washable, pre-filter in Arctic Trail (Gray). It can also be customized in other Swedish-inspired pre-filter colors that are sold separately. Carbon filter traps light household odors from smoking, pets, cooking, and more. Award-winning, sleek, Swedish design compliments your aesthetic while working hard to clean your air so you can place where it will be most effective at capturing airborne particles & odors without worrying about it cramping your style. Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide® Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 353 for fine smoke particles, 380 for pollen particles, and 347 for dust particles.

CLEAN AIR IN A MATTER OF MINUTES: Comparing CADR performance of Blueair models vs same models with only H13 HEPA. At similar CADRs, Blueair models achieved less noise than same models with only H13 HEPA. Noise refers to the dB(A) difference in acoustic power. Tested on Blue Pure 211+ Auto, DustMagnet™ 5400i, Protect 7400 series. Performance may vary. According to AHAM, air changes per hour (ACH) is the measure of the outside air volume added to a space divided by the volume of that space over a set amount of time.

REMOVES ODOR & PARTICLES DOWN TO 0.1 MICRON: Blueair models with HEPASilent's mechanical and electrostatic filtration produced higher CADR, lower noise, and had lower energy consumption vs. the same models with only mechanical filtration (H13 filter). Tested on PM2.5 (0.1 - 2.5 μm) up to 90min; Tested on Influenza A (H1N1) with a minimum reduction rate of 99.99% in 60min.

REMOVES 99.99% OF COMMON ALLERGENS: Tested on pollen particles 5.048 - 11.14 μm on Blue Auto, DustMagnet™ and Protect.

MOST AWARDED AIR PURIFIER BRAND IN THE US: Based on survey of over 50 awards, accolades, and recommendations issued by independent consumer associations, media publications, and industry competitions from January 1, 2022, through August 16th, 2022, for products sold in the US by top 10 air purifier brands according to NPD Group Retail Tracking Service, Small Appliances, U.S. sales dollars June 2022 YTD.

BACTERIA, VIRUS & MOLD SPORE REMOVAL: Tested to reduce E.coli and Influenza A (H1N1) with minimum reduction rate of 99.9% in 60min; Tested on A.niger with minimum reduction rate of 99.9% in 60min."

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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BLUEAIR

BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ Auto


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
6,353 global ratings

Customers say

Customers like the quiet operation and quality of the air purifier. For example, they say it blends in and does a good job of purifying the air. That said, opinions are mixed on appearance, smell and performance.

AI-generated from the text of customer reviews

315 customers mention227 positive88 negative

Customers like the noise level of the air purifier. They say it really is quiet, blends in like a nice white noise, and is whisper soft. Some mention that the night feature is completely silent.

"...touch control on the top, along with it's light indicators, are super smooth and pretty F'n awesome (can I swear here?). It looks great, too...." Read more

"...It is extremely quiet during normal operation...." Read more

"...I would say auto mode is more quiet or no louder than an average fan that's on it's lowest speed and everyday mode is maybe as loud as a fan on..." Read more

"...the sensor detects too many particulates, this one has a constant relatively loud hum, which I find annoying in my office." Read more

224 customers mention197 positive27 negative

Customers like the quality of the air purifier. For example, they say it does an okay job of purifying the air, reduces dust and dander, and clears the air on the entire floor. Some say it autodetects the quality and adjusts the fan speed accordingly. That said, most are happy with the product and recommend it to others.

"This is a really good air filter. I’ve tried a bunch and this one is the best. Clears out cooking smells within hours...." Read more

"...So, I was able to match it to the decor. It absolutely works, helps with the air quality, AND really cut down on the dust!" Read more

"...Filters are easy to change and the cover washes well." Read more

"...This one really reduces the dust and dander in the room...." Read more

294 customers mention204 positive90 negative

Customers are mixed about the performance of the air purifier. Some mention that it works well, while others say that it stopped working.

"...This thing is perfect and I love it. It has auto mode (sets fan speed according to measured air quality) and three different manual speeds...." Read more

"...It's been about a year and it works pretty well - I haven't even changed the filter, I just lint-roll off all the accumulated cat hair from the..." Read more

"...cleaning that the light goes on, can tap to choose levels, but fan no longer works. Unable to reach customer service for support" Read more

"Excellent Results" Read more

108 customers mention72 positive36 negative

Customers are mixed about the smell of the air purifier. Some mention that it works great to remove odors and gives them peace of mind about the air quality, while others say that the smell was overwhelming.

"...I’ve tried a bunch and this one is the best. Clears out cooking smells within hours...." Read more

"...at keeping the quality of air inside our home filtered, clean and smelling fresh during the seasonal bad air quality...." Read more

"...It may have produced a slight scent in the first few days but I haven't noticed anything since...." Read more

"...It is unbelievably good at monitoring air quality, and the slightest pollutant (smoke, dust, etc.)..." Read more

102 customers mention70 positive32 negative

Customers are mixed about the appearance of the air purifier. Some like the look and style of the unit, saying it looks minimalist and blends with any decor. However, others are not pleased with the product design, saying the LCD screen seems cheap and started malfunctioning. They also say the gray fabric is very cheap.

"...It looks great, too. I got a green cover and a blue cover, for the two different rooms (I have two units). So, I was able to match it to the decor...." Read more

"...I also like the quality of the upgraded cover. It's a bit thicker and looks nice.The set up was simple...." Read more

"...The exterior filter design also makes the unit more fragile; filters can get smashed if the unit is bumped into or knocked over...." Read more

"My Blueair Purifier is a flat-out beast! The design is minimalist, yet functional...." Read more

This purifier is amazing! Allergies, be gone!
5 Stars
This purifier is amazing! Allergies, be gone!
This is now our 2nd Blue air purifier. I originally bought the smaller Blue 411+ for our bedroom and I was very impressed with how having that in our bedroom improved my lifelong allergies that I take a daily pill for. Prior to getting the smaller 411+ I would very often wake up with a stuffed nose. Yes, we do have 2 dogs but they are not allowed in the bedroom due to my allergies. I honestly didn't have high hopes for the smaller unit but after a couple days of it purifying the bedroom air, I noticed a huge difference. I began waking up with clear sinuses and the room smelled "different". Not a bad smell but maybe just NO smell? Anyhow, after giving the little Blue a good 30 days to prove itself, I knew I needed a larger one for our living room. This is also where our dogs (golden retriever and black lab) spend most of their time with us when they are inside. And having these 2 dogs and allergies doesn't make life super easy as cleaning goes. I have to vacuum daily or every other day (minimum) and will at times pull up what looks like a small dog inside my vacuum canister. Especially, when my golden is blowing her coat.Finally after comparing, I went ahead and ordered the Blue 311 Auto for our living room which is approximately 420sf.I also bought a separate filter cover that's shown in my pictures and an additional filter to have on hand.The unit arrived well packaged and without damage.It came with a main filter installed and a a light gray filter cover but tbh, I will use the light gray cover while cleaning and drying the dark gray cover I have on it now. I as I prefer the dark (name is actually Winter Reed) over the lighter gray. I also like the quality of the upgraded cover. It's a bit thicker and looks nice.The set up was simple. It's really just plug it in and go.I like that this unit has 4 mode settings and indicator lights to show air quality and when the filter needs replaced.I have noticed one time when out of nowhere the air quality sensor light briefly turned from blue to orange then back to blue.The light sensor color indicators and level info are Blue (good), Orange (moderate), and Red (polluted).The main filter change sensor is supposed to switch on after 6 months of use but I haven't had it long enough to confirm if that works yet.For maintenance, I do run my vacuum brush over the outer filter cover once a week to clean any dust off of it which, there always is. This was also an immediate indicator to me that this fella is doing its job!I will also run a damp cloth on the the plastic exterior at the same time just to keep it clean and in the best working condition.Noise Level:This 311 Auto unit has 4 modes.✔Auto Mode: (fan speed will change depending on the air quality it senses).✔Night Mode: (whisper quiet, low speed)✔Everyday Mode: (medium speed)✔Boost Mode: (fastest speed and very loud).Boost mode is like, wind tunnel loud! Way too loud for us to watch TV in the same room if it was on. But this mode is not for everyday use. The only time I've used boost mode is when there is a specific reason i.e.,dogs came in from rain or I may have cooked/baked something that has a lingering smell, etc. I would just turn it on boost for 10 minutes or so to dissipate whatever the odor issue may be.We typically have it set on auto mode or everyday mode and it's very, very quiet. I would say auto mode is more quiet or no louder than an average fan that's on it's lowest speed and everyday mode is maybe as loud as a fan on medium setting.▪️Please see video I took of the different modes to show the sound difference between all four settings▪️I have now had this particular unit running 24/7 for about 2 months and we love it! We live in Washington State so when it rains and our fur babies go out for break, any "wet dog" smell is gone in minutes if I kick in the boost mode but everyday mode will also take care of that within an hour or so.Sadly, I also know fire season will soon be upon us for summer and I have no doubt both units will do a fantastic job at keeping the quality of air inside our home filtered, clean and smelling fresh during the seasonal bad air quality.We will be tackling a full home remodel next year which we'll be adding central heating and air but even then, I plan on keeping both these units up and running!Would I recommend this Blueair 311 Auto?Absolutely 100%.Summary: All in all, if you suffer from allergies/asthma like me, have animals, or simply a home without filtered air and are teetering on whether or not to purchase, go for it! You won't regret it! Personally, these air purifiers have honestly changed my life! I wish I would've found this company sooner! I HIGHLY recommend!If I must find something negative, I guess I would have to say their OEM filter replacements are pricey but this was not a deterrent for me. They also offer an auto ship filter service for a discount.I give this an easy 5 star!(I was NOT paid for this review and was not asked to leave one. I have no affiliation with this company other than being a new-ish forever customer)!Hopefully this will help someone!
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Top reviews from the United States

Reviewed in the United States on February 10, 2024
Style: 211+ AutoVerified Purchase
One person found this helpful
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Reviewed in the United States on May 24, 2023
Style: 311 AutoVerified Purchase
25 people found this helpful
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Reviewed in the United States on February 16, 2024
Style: 311 AutoVerified Purchase
Reviewed in the United States on March 11, 2024
Style: 311 AutoVerified Purchase
Reviewed in the United States on June 30, 2021
Style: 311 AutoVerified Purchase
Customer image
5.0 out of 5 stars This purifier is amazing! Allergies, be gone!
Reviewed in the United States on June 30, 2021
This is now our 2nd Blue air purifier. I originally bought the smaller Blue 411+ for our bedroom and I was very impressed with how having that in our bedroom improved my lifelong allergies that I take a daily pill for. Prior to getting the smaller 411+ I would very often wake up with a stuffed nose. Yes, we do have 2 dogs but they are not allowed in the bedroom due to my allergies. I honestly didn't have high hopes for the smaller unit but after a couple days of it purifying the bedroom air, I noticed a huge difference. I began waking up with clear sinuses and the room smelled "different". Not a bad smell but maybe just NO smell? Anyhow, after giving the little Blue a good 30 days to prove itself, I knew I needed a larger one for our living room. This is also where our dogs (golden retriever and black lab) spend most of their time with us when they are inside. And having these 2 dogs and allergies doesn't make life super easy as cleaning goes. I have to vacuum daily or every other day (minimum) and will at times pull up what looks like a small dog inside my vacuum canister. Especially, when my golden is blowing her coat.
Finally after comparing, I went ahead and ordered the Blue 311 Auto for our living room which is approximately 420sf.
I also bought a separate filter cover that's shown in my pictures and an additional filter to have on hand.

The unit arrived well packaged and without damage.
It came with a main filter installed and a a light gray filter cover but tbh, I will use the light gray cover while cleaning and drying the dark gray cover I have on it now. I as I prefer the dark (name is actually Winter Reed) over the lighter gray. I also like the quality of the upgraded cover. It's a bit thicker and looks nice.
The set up was simple. It's really just plug it in and go.

I like that this unit has 4 mode settings and indicator lights to show air quality and when the filter needs replaced.
I have noticed one time when out of nowhere the air quality sensor light briefly turned from blue to orange then back to blue.

The light sensor color indicators and level info are Blue (good), Orange (moderate), and Red (polluted).

The main filter change sensor is supposed to switch on after 6 months of use but I haven't had it long enough to confirm if that works yet.

For maintenance, I do run my vacuum brush over the outer filter cover once a week to clean any dust off of it which, there always is. This was also an immediate indicator to me that this fella is doing its job!
I will also run a damp cloth on the the plastic exterior at the same time just to keep it clean and in the best working condition.

Noise Level:
This 311 Auto unit has 4 modes.
✔Auto Mode: (fan speed will change depending on the air quality it senses).
✔Night Mode: (whisper quiet, low speed)
✔Everyday Mode: (medium speed)
✔Boost Mode: (fastest speed and very loud).
Boost mode is like, wind tunnel loud! Way too loud for us to watch TV in the same room if it was on. But this mode is not for everyday use. The only time I've used boost mode is when there is a specific reason i.e.,dogs came in from rain or I may have cooked/baked something that has a lingering smell, etc. I would just turn it on boost for 10 minutes or so to dissipate whatever the odor issue may be.

We typically have it set on auto mode or everyday mode and it's very, very quiet. I would say auto mode is more quiet or no louder than an average fan that's on it's lowest speed and everyday mode is maybe as loud as a fan on medium setting.
▪️Please see video I took of the different modes to show the sound difference between all four settings▪️

I have now had this particular unit running 24/7 for about 2 months and we love it! We live in Washington State so when it rains and our fur babies go out for break, any "wet dog" smell is gone in minutes if I kick in the boost mode but everyday mode will also take care of that within an hour or so.
Sadly, I also know fire season will soon be upon us for summer and I have no doubt both units will do a fantastic job at keeping the quality of air inside our home filtered, clean and smelling fresh during the seasonal bad air quality.
We will be tackling a full home remodel next year which we'll be adding central heating and air but even then, I plan on keeping both these units up and running!

Would I recommend this Blueair 311 Auto?
Absolutely 100%.

Summary: All in all, if you suffer from allergies/asthma like me, have animals, or simply a home without filtered air and are teetering on whether or not to purchase, go for it! You won't regret it! Personally, these air purifiers have honestly changed my life! I wish I would've found this company sooner! I HIGHLY recommend!
If I must find something negative, I guess I would have to say their OEM filter replacements are pricey but this was not a deterrent for me. They also offer an auto ship filter service for a discount.
I give this an easy 5 star!

(I was NOT paid for this review and was not asked to leave one. I have no affiliation with this company other than being a new-ish forever customer)!

Hopefully this will help someone!
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
659 people found this helpful
Report
Reviewed in the United States on January 24, 2024
Style: 211+ AutoVerified Purchase
Reviewed in the United States on March 8, 2024
Style: 311 AutoVerified Purchase
Reviewed in the United States on March 7, 2024
Style: 211+ AutoVerified Purchase

Top reviews from other countries

Translate all reviews to English
George in Canada
5.0 out of 5 stars Efficient purifier, good appearance, easy filter replacement, cumbersome controls.
Reviewed in Canada on August 26, 2023
Style: 211+ AutoVerified Purchase
Unboxing
5.0 out of 5 stars Sleek and quiet
Reviewed in Canada on March 7, 2023
Style: 311 AutoVerified Purchase
Customer image
Unboxing
5.0 out of 5 stars Sleek and quiet
Reviewed in Canada on March 7, 2023
I own 3 of the 411+ that are used in bedroom/office for last few years and I’ve have been very pleased with the 411+ air quality performance so when I saw a deal on the 311+ Auto for $195 I snatched it up instantly. Its a lot bigger then the 411+ but the fan sound is just as quiet if not quieter then the original 411+. It’s just the right size for the living room/kitchen. We always leave all of them running on second speed and you honestly don’t hear them at all but the air quality is much fresher and cleaner. Cooking smells are gone within an hour and lot less dust during the winter months when the furnace is running and no allergies in the summer months. Would recommend any of the blue-air filters when they go on sale from time to time or even buy an warehouse deal open box one on Amazon as most of the time it’s just a return that someone changed their mind. The only con is the original filters can get a little expensive but you can buy third party for a lot less if you choose too but I did notice a difference in the air quality from the original filters vs third party so just a heads up if choosing third party filters for any blue-air air filters.
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Customer image
15 people found this helpful
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Luis Miguel Covarrubias Méndez
3.0 out of 5 stars Tengo 2, creo tener mi favorito…
Reviewed in Mexico on July 2, 2022
Style: 311 AutoVerified Purchase
Lane
5.0 out of 5 stars Incredible
Reviewed in Canada on November 25, 2023
Style: 211+ AutoVerified Purchase
Gerry
5.0 out of 5 stars Breathing in Clean Air Feels Good
Reviewed in Canada on August 13, 2023
Style: 311 AutoVerified Purchase