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- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
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- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
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Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.

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Defender Air Purifier For Home, Black Base with Red, 3x HEPA, FDA Cleared, Lab Tested, For Large Rooms, Office, Pets, Smoke
Purchase options and add-ons
Color | Black - Red |
Brand | Filter Queen |
Product Dimensions | 12"D x 12"W x 15"H |
Floor Area | 700 Square Feet |
Noise Level | 46 dB |
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About this item
- CLEAN AIR. CLEAN HOMES. SINCE 1928 - For almost 100 years FilterQueen has been manufacturing products in the USA built to make a healthier home. This air purifier is 100% assembled in the USA.
- BECAUSE IT MATTERS - The Defender air purifier is FDA-Cleared, Class II Medical Device. It has had this designation for over 20 years.
- RISK AND WORRY FREE - The Defender air purifier comes with a 30 day in-home trial then is backed up with a lifetime perpetual warranty
- TRUSTED BY MILLIONS - The FilterQueen line of products have been enjoyed by millions of customers in countries worldwide.
- BACKED BY VERIFIED RESULTS - The Defender has been independently tested to eliminate harmful pollutants from the air. See Efficacy Report link on this listing to see lab results.
- CARB Certified for Sale in California - CARB EO Number G-14-081
Buy it with

Frequently purchased items with fast delivery
From the brand

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Clean Air. Clean Homes. Since 1928.
For 90+ years, FilterQueen has prioritized global well-being. We offer life-changing products like the FilterQueen Indoor Air Quality System, which includes the Majestic Vacuum and Defender Air Purifier. These solutions efficiently eliminate allergens, dirt, dust, and harmful pollutants, fostering a healthier indoor environment.
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360° Intake & Exhaust
Polluted air is pulled in from all sides through both filters.
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Lightweight & Portable
Moves easily from room to room, providing a healthier home environment.
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Help keep your family healthy
Does not produce harmful ozone or use UV lights.
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Superior Filtration
Provides 3x times better-than-HEPA filtration to remove harmful airborne pollutants.
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Combat Odors
Captures numerous types of harmful VOCs and unwanted odors from the room.
Looking for specific info?
Product information
Color | Black - Red |
---|---|
Brand | Filter Queen |
Product Dimensions | 12"D x 12"W x 15"H |
Floor Area | 700 Square Feet |
Noise Level | 46 dB |
Particle Retention Size | 0.1 |
Controller Type | Button Control |
UPC | 692769221125 |
Manufacturer | Health-Mor Inc |
Item Weight | 12.75 pounds |
ASIN | B00BL9R76E |
Country of Origin | USA |
Item model number | AM4000 |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #450,449 in Home & Kitchen (See Top 100 in Home & Kitchen) #499 in HEPA Filter Air Purifiers |
Is Discontinued By Manufacturer | No |
Assembly required | No |
Number of pieces | 1 |
Warranty Description | Lifetime Perpetual Warranty |
Batteries required | No |
Warranty & Support
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Defender Air Purifier For Home, Black Base with Red, 3x HEPA, FDA Cleared, Lab Tested, For Large Rooms, Office, Pets, Smoke
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Product Description





Videos
Videos for this product
1:28
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Breathe deeply with this great product
Laura Beth and Ethan Kaste
Videos for this product
1:18
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The FilterQueen Defender Air Purifier
Health-Mor
Videos for this product
0:45
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Filter Queen Defender Air Purifier HEPA Air Cleaner
Health-Mor
Compare with similar items
This Item Filter Queen Defender Air Purifier For Home, Black Base with Red, 3x HEPA, FDA Cleared, Lab Tested, For Large Rooms, Office, Pets, Smoke | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | |
Price | $429.00$429.00 | $249.99$249.99 | $179.12$179.12 | $599.99$599.99 | -10% $314.99$314.99 List: $349.99 | $598.00$598.00 |
Delivery | Get it Apr 10 - 14 | Get it as soon as Monday, Apr 7 | Get it as soon as Monday, Apr 7 | Get it as soon as Monday, Apr 7 | Get it as soon as Monday, Apr 7 | Get it Apr 11 - 14 |
Customer Ratings | ||||||
Sold By | Health-Mor | FURGO-US | Amazon.com | Puraclenz | Amazon.com | CLEANFORCE AIR |
filter type | 3x HEPA | HEPA+Carbon | HEPA | HEPA | Side Bio-Guard, Stainless Steel Prefilter, Cylindrical Bio-Guard | HEPA |
floor area | 700 square feet | 153.8 inches squared | 1881 square feet | 1500 square feet | 966 square feet | 1160 square feet |
control method | touch | touch | touch | touch | touch | remote, touch |
power source | AC | ac | Electric | Corded Electric | Electric | AC |
particle retention size | — | 0.3 micrometer | 0.01 micrometer | — | 0.1 micrometer | 0.1 micron |
noise level | 46 decibels | 49 decibels | 27 decibels | 23 decibels | 21.4 decibels | 35 decibels |
specification met | — | CARB Certified, ETL Certified, RoHS Certified, DOE Certified | AHAM Certified, CARB Certified, UL Certified | Energy Star Certified | Energy Star Certified, CARB Certified, EPA Certified, UL Certified, ETL Certified | ETL Certified, CARB Certified, Energy Star Certified, FCC Certified, CP65 Compliant |
weight | 12.75 pounds | 18 pounds | 13.3 pounds | — | 13.2 pounds | 36.4 pounds |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the air purifier effective and appreciate its ability to eliminate house smells and reduce dust in the air. The device receives positive feedback for its air purification capabilities, with one customer noting it's the best HEPA class purifier available. The noise level receives mixed reviews, with some finding it barely audible on low settings while others report it's very noisy on low. Value for money opinions are divided between those who find it worth the price and those who consider it pricey.
AI-generated from the text of customer reviews
Customers appreciate the air purifier's ability to remove dust from the air.
"...If you can bare the hum on high it will greatly improve air quality. Learned this through experience...." Read more
"...eliminated all odors, not to mention my entire 3rd floor has significantly less dust than before. Saras Vac Shack is second to none !..." Read more
"We like it very much. It is doing a great job of keeping the air cleaner, have much less dust...." Read more
"So far this unit cleans the air of dust particles and allergens quite well. They have high ratings and good reports...." Read more
Customers report that the air purifier effectively eliminates house smells.
"...if competing next to others, this filter will leave a room smelling like fresh paint...." Read more
"...Completely eliminated all odors, not to mention my entire 3rd floor has significantly less dust than before. Saras Vac Shack is second to none !..." Read more
"Man this thing is amazing, keeps the room clean smelling and kills the germs. I never felt so safe when I sleep. Sound is like the wind blowing" Read more
"The best air cleaner-purifier on the market. It eliminates house smells, dust, molds and mildews common in areas of the country with raining weather...." Read more
Customers find the air purifier effective, with one mentioning it's the best HEPA class purifier available.
"...I have tried Holmes, Filtrete etc... and this is the best HEPA class purifier in terms of build quality, efficiency, and effectiveness...." Read more
"The best air cleaner-purifier on the market. It eliminates house smells, dust, molds and mildews common in areas of the country with raining weather...." Read more
"Best filter available...." Read more
Customers find the air purifier effective, with one describing it as extremely powerful.
"...HEPA class purifier in terms of build quality, efficiency, and effectiveness. It is also very quiet, or extremely powerful when you want it to be...." Read more
"product works well for used product." Read more
"Works excellente..." Read more
Customers have mixed opinions about the air purifier's noise level, with some finding it barely audible on low settings while others report it being very noisy even on low.
"...It is also very quiet, or extremely powerful when you want it to be. To top it off, this is a US made product!..." Read more
"It's loud on high, barely audible on low. If you can bare the hum on high it will greatly improve air quality. Learned this through experience...." Read more
"...I never felt so safe when I sleep. Sound is like the wind blowing" Read more
"...The only thing I don't like is that it is very noisy on low setting and way too loud on high. We let it run on low 24-7. Very satisfied." Read more
Customers have mixed opinions about the air purifier's value for money, with some finding it worth the price while others consider it pricey.
"...I was glad to find this one at a good price. The filter which are costly will need changing yearly." Read more
"...Worth the price!" Read more
"...After owning a previous generation, this unit is by far cheaper and obviously poorly made...." Read more
"Cheap product...." Read more
Reviews with images

The Best!
Top reviews from the United States
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- Reviewed in the United States on February 5, 2024Color: White - BronzeVerified PurchaseIt's loud on high, barely audible on low. If you can bare the hum on high it will greatly improve air quality. Learned this through experience. Like any filtration system, the only flaw with filtering is circulation. You can never put a filter in a corner, obstruct circulation with furniture or expect instant results. That being said, if competing next to others, this filter will leave a room smelling like fresh paint. I leave it tucked into a corner while the living room is being used, but once we go to bed I pull it out. Partner this with their "surface cleaner." They don't call it a vacuum because it cleans so well. Partnered together and now I haven't dusted in a few months because of the lack of dust in the air.
- Reviewed in the United States on September 12, 2024Color: Black - SilverVerified PurchaseI just got a new cat who adopted our family by leaving his previous home. I'm 100% allergic to cats. Since I bought this Air Purifier by Filter Queen, I'm breathing normally even with the cat in the room. It does an excellent job of capturing cat hair and dander. I'm waiting to see how it handles normal dust collection.
I have had a cough caused by allergies for a few months, the cough is also beginning to go away since I bought this. I just wish I could have one for every room I'm in but I can't. It is lightweight. I like knowing I can take it with me when I travel.
- Reviewed in the United States on March 14, 2023Color: Black - BronzeVerified PurchaseThis is, by far, the best air purifier I have ever used. I have tried Holmes, Filtrete etc... and this is the best HEPA class purifier in terms of build quality, efficiency, and effectiveness. It is also very quiet, or extremely powerful when you want it to be. To top it off, this is a US made product!
So too, remember to buy the OEM filters here -- and avoid the aftermarket filters. None of the aftermarket HEPA or carbon filters have an official medical grade rating like these filters do.
This is, by far, the best air purifier I have ever used. I have tried Holmes, Filtrete etc... and this is the best HEPA class purifier in terms of build quality, efficiency, and effectiveness. It is also very quiet, or extremely powerful when you want it to be. To top it off, this is a US made product!
So too, remember to buy the OEM filters here -- and avoid the aftermarket filters. None of the aftermarket HEPA or carbon filters have an official medical grade rating like these filters do.
Images in this review
- Reviewed in the United States on January 31, 2017Color: Black - RedVerified PurchaseFantastic air purifier! I bought it to set on top of a cabinet that houses my cats litter box. Completely eliminated all odors, not to mention my entire 3rd floor has significantly less dust than before. Saras Vac Shack is second to none ! I would have never known it was Refurbished. It arrived clinically clean and wrapped in plastic. I own a filter queen vacuum as well and will never own anything else besides filter queens. This defender was a great addition.
- Reviewed in the United States on May 8, 2017Color: Black - RedVerified PurchaseWe like it very much. It is doing a great job of keeping the air cleaner, have much less dust. The only thing I don't like is that it is very noisy on low setting and way too loud on high. We let it run on low 24-7. Very satisfied.
- Reviewed in the United States on November 9, 2013Color: Black - RedVerified PurchaseSo far this unit cleans the air of dust particles and allergens quite well. They have high ratings and good reports. But they are some times sold in a deceptive manner by traveling salesmen at high prices. I was glad to find this one at a good price. The filter which are costly will need changing yearly.
- Reviewed in the United States on December 16, 2020Color: Black - RedVerified PurchaseMan this thing is amazing, keeps the room clean smelling and kills the germs. I never felt so safe when I sleep. Sound is like the wind blowing
- Reviewed in the United States on April 7, 2023Color: Black - BronzeVerified PurchaseThe media could not be loaded.
Expect way better from a product of this level.
After owning a previous generation, this unit is by far cheaper and obviously poorly made.
Tried to return or exchange and my only option is return and wait 30 days for a refund.
Horrible experience. Would not recommend. They are not what they were in the past. Would avoid at all cost.
Arrived broken. No damage to the box, looks like it was packed this way.
Expect way better from a product of this level.
After owning a previous generation, this unit is by far cheaper and obviously poorly made.
Tried to return or exchange and my only option is return and wait 30 days for a refund.
Horrible experience. Would not recommend. They are not what they were in the past. Would avoid at all cost.
Images in this review
Top reviews from other countries
- traceyReviewed in Canada on July 27, 2017
5.0 out of 5 stars Five Stars
Color: Black - RedVerified PurchaseSo far so good!