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OUR PROMISES

Alen Lifetime Limited Warranty

Lifetime Limited Warranty
At Alen, we’re all about helping people Live Better. We do that by creating high-quality air purifiers to help you find relief from allergies, asthma, pet concerns, secondhand smoke, troublesome odor or other respiratory issues. Our commitment to you doesn’t stop there. When you buy an Alen HEPA Air Purifier, we promise to keep you breathing pure air for a lifetime. This is a promise we stand by.


Fast Free Delivery

Free UPS Ground Shipping
Alen offers FREE UPS ground shipping to destinations within the Continental US for all products sold through AlenCorp.com. Alen Air Purifiers and Filters arrive to most destinations within 3 to 4 business days when ordered by 2:00pm CST.

To see other available shipping options, add your product to your cart and view the shipping drop-down menu. Please note that UPS does not deliver on the weekends, so all days noted are business days and exclude Saturdays and Sundays.


60 Day Satisfaction Guarantee

60 Day Guarantee
Every product purchased through Alencorp.com comes with a 60 Day Guarantee so you can see for yourself the impact of pure air on improving your health and the air quality in your home.

If for any reason you are not fully satisfied with your purchase within 60 days of receipt of shipment, we’ll refund your money — no questions asked. All you pay is return shipping.


RETURNS ARE EASY

Alen Returns are Easy

4 Easy Steps To Return

1 Call customer service within 60 days from the date you received your air purifier at 800-630-2396 or fill out our online form to get a return authorization label.

2 Repackage your air purifier in its original Alen box.

3 We can either send you a return UPS label or issue a call tag for UPS to pick up the package and ship it back to Alen.

4 Your full refund minus return shipping costs (approximately $20-$30, depending on the unit and origination) is usually processed within 2-3 weeks once we receive the unit.


Ship your returns to:

Alen Corporation
2929 Longhorn Blvd, Suite 103
Austin, TX 78758


Refund Process and Timeframe

Refunds will be processed to the original method of payment minus return shipping costs within 2-3 weeks after the unit is received back into Inventory. Return shipping costs are approximately $20-$30, depending on unit and origination.

Once the return has been processed, you will receive a return email confirmation. Depending on the credit card company, it may take an additional 2-10 business days after the credit is applied for it to post.

Please note: This applies to products purchased from AlenCorp.com. If the item was ordered through a reseller, you will need to return the product according to their return policy.


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A Lifetime of Pure Air Made Simple

Join the Alen Autoship program today to experience convenience and savings. Choose the subscribe option at checkout, and let us know how often you want new filters delivered. We do the rest!
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FREQUENTLY ASKED QUESTIONS

Don’t see your question on our list? Just contact us and we’ll be happy to assist you!




Choosing Your Air Purifier

If you’ve already done your research and you know exactly which purifier and filters are right for you, then our customizable options will allow you to configure the air purifier that meets your exact specifications. If you’re still a bit lost, our pre-configured options are designed to take the guesswork out of compositing your own air filter from scratch. Each pre-configured option is designed with a different set of needs in mind, from allergies to pet odor, and it contains the specific combination of air purifier and filter to fit the job. These options are still customizable from an aesthetic standpoint - you can still choose your own panels - but they are not otherwise customizable.
When you choose the best air purifier to meet your needs, there are two main factors you’ll be considering: room size and air quality concern. Your room size will have perhaps the largest impact on your selection process, since each air purifier is designed to move a different amount of air throughout the room, which the more powerful units covering a larger area. Before choosing your air purifier, measure your room size in square footage and compare it with the listed coverage areas on our different units.

The other factor you’ll want to consider is your air quality concern. Are you worried about odors, allergies, smoke, mold, dust, pet dander, or asthma? Air purifiers and filters vary in the problems they are designed to address. As a general rule, for example, HEPA filters provide the most thorough particle filtration, whereas models with carbon filters are better at addressing odors or chemicals. We also have units that meet multiple needs or are more general-purpose.
The efficacy of an air purifier is typically measured in air exchanges per hour, or how many times within an hour the air in a room is completely replaced. A rate of six exchanges per hour or more is considered very good and would meet our standards. If your square footage exceeds the listed square footage for your air purifier, it can still clean your room, but the rate at which it can do so decreases. When the air exchanges per hour drop to a certain point, you won’t be receiving all of the benefits of allergen-free, breathable air. For optimal performance, a good rule of thumb is to find an air purifier that can cover more than the square footage of your room.
Although your air purifier may still do some good in your entire apartment due to natural air circulation, air purifiers work best in the room they’re placed in. Air purifiers can’t work through walls or doorways, nor can they typically travel up stairs for loft-style apartments. It’s best, then, to get two smaller units and place one in each room. If you can only get one air purifier, place it in the room where you spend the most time, as this is the room that will see the most reliable results. We usually recommend the bedroom, since air quality and allergies can often drastically affect your quality of sleep. Your air purifier is portable and can be moved from room to room as needed, too.



How to Use Your Air Purifier

Don’t worry about it! Our product manuals are online, and you can always contact us if you need additional help.
If you only own one air purifier, the ideal place to put the unit is in your bedroom. This is the room in your home where you spend the most time out of each day. An air purifier in the bedroom can contribute to a better night's sleep by reducing the allergy symptoms that make a good night's sleep difficult. In addition, the white and pink noise produced by an air purifier can help you sleep more soundly.
Try to keep your unit at least one foot away from walls and furniture, and never block the air entrance and exit vents. This will allow air to circulate properly around the room and into the air purifier.

For Tower units, directing the air out into the room is best. Do not direct the clean air at a wall or furniture, as this can interrupt the airflow in the room. For box units that direct air upwards, do not place them under a table or shelf, which can block the airflow. Allowing the airflow to blow to the ceiling is best, as it will circulate along the ceiling and around the room, bringing dirty air back towards the unit.
We recommend that you run your air purifier 24 hours a day. Although an air purifier may clean a room up to 95% in only an hour, it can only keep the room clean while it is running. In a home with a HVAC system circulating air, the air coming out of your vents will be significantly dirtier than the air in the room with the air purifier. The filters in HVAC systems in homes or offices are not meant to purify the air for you to breathe, but only to remove the largest dust particles to protect the mechanical operation of the HVAC system. Over time, the HVAC system accumulates dust particles in the vents and ducts. When it turns on, it will be circulating this dust throughout your house. You will notice the best results from your air purifier when it can catch the dust and other particles as your HVAC system runs.

However, if running your air purifier 24 hours a day isn’t practical for you, you can take certain steps to maximize its performance while running it less often. Consider the following example: A unit rated for 750 square feet can reduce the airborne particles by 95% in less than 60 minutes in a room of 375 square feet. For a room rated at the maximum coverage area of the unit, such as 750 square foot room, you must let the unit run for twice as long to clean the air. Once you have run the unit on high and cleaned the air in the room, do not turn it off or the air will quickly return to pre-cleaned levels in as little as 3-4 hours. Instead, you should turn the unit down to speed 2 or 3. This will be high enough to maintain clean air in the room. If you do turn the unit off, then the next time you turn it on, you should follow the same step as if you placed the unit in a new room: turning to the highest speed for at least an hour.
The speed you use should correspond to the room size that you have placed the unit in. If you get a unit rated up to 750 square feet, this means 750 square feet of coverage on the highest speed. Using it on a lower speed will take longer to clean the room.
All of Alen’s air purifiers are non-ozone producing and as such, there won’t be any health consequences or other side effects. All our air purifiers do is circulate the air in the room and filter it, leaving it clean; they will never add anything to the air in your room. If you’re still shopping around for air purifiers, it’s important to note that you should never choose a purifier that emits odors, chemicals, or ozone. These can be harmful, particularly in people who are chemically sensitive.
Many people wonder if they’ll notice a big change on their energy bill after they start using their air purifier. Since our purifiers are engineered to be as energy-efficient as possible, you should not notice a significant uptick. HEPA air purifiers typically consume 50 to 200 watts of electricity, which is about the same as a lamp (60 watts) and significantly less than a plasma tv (240 watts). Appliances like your refrigerator, which run continuously at 500-750 watts, will have a much greater impact on your energy consumption.

The other major cost associated with air purifiers is that of replacing the filter. The frequency of filter replacement can vary, but with normal use, you’ll probably be replacing your filter every six months. To save money, consider purchasing multiple filters at once for bulk discounts, or save money with our filter subscription service.
Since air purifiers cannot work through walls, there should be one in each room you’d like to focus on. We recommend keeping one unit in the bedroom and one in the most high-traffic area of your home, at minimum. If you have a particularly large living area, you might find it more effective to use two smaller units positioned at opposite ends of the room.
In general, Alen air purifiers are notably quiet; however, they will grow louder on higher speeds. If you’re concerned about noise, run your air purifier on high when you’re not in the room, or ask one of our experts about which units are the most quiet. Many people find that they enjoy the white or pink noise from the air purifiers, especially at night.
Many of our air purifiers have monitors that will tell you when they are “ramping up” in response to changes in air quality in the room. When it’s time to change your filter, you may also notice visible particles on the filter. If you suffer from allergies, you should be able to notice the positive effects of fresher air within a day of using your unit.
Most of our air purifiers have an electronic indicator that will tell you when it’s time to change your filter. If you are using a model that doesn’t have an indicator, you might notice that your air purifier is working harder than usual, indicating that it’s trying to pull air through a clogged filter. For normal use, expect to change your filter every six months.
Change your air filter as soon as possible after your indicator light comes on. As filters become dirty, the air purifier has to work harder and harder to move the air through them, which drastically decreases your air purifier’s effectiveness.
Keeping your windows open for long periods of time may temporarily reduce the effectiveness of your air purifier, but we encourage you to open your windows and mix in some fresh air whenever you like.
Although air purifiers can reduce the harmful effects of breathing in mold and possibly prevent mold in the future, they cannot eliminate an existing mold problem. Mold can be a dangerous concern, and should be taken seriously and professionally removed prior to purchasing an air purifier.



General FAQs about Air Purifiers and Filters

RECOMMENDED - HEPA Air Purifier: High Efficiency Particulate Air (HEPA) air purifiers utilize the most effective filter technology on the market. Only HEPA air purifiers can remove a significant amount of allergens and pollutants from the air—up to 99% of airborne particles as small as 0.3 microns in size.

NOT RECOMMENDED – Electrostatic Air Purifier: An electrostatic air purifier does not use a filter, but rather an internal filtration system, which attracts charged particles. This internal filtration system has to be cleaned regularly, and over time becomes less efficient.

NOT RECOMMENDED – Ionic Ozone Air Purifier: An ionizer charges particles in the air, making it easier for filters and cleaners to trap and can be effective when used in combination with a HEPA style filter. However, when used alone, it is less effective and can produce harmful levels of ozone in the process.
HEPA (High Efficiency Particulate Air) filters are proven to be the most effective air purifying technology available today. HEPA air filters were actually designed by the U.S. Military in the 1940s, and are recommended by the U.S. Department of Defense as a must-have item for the safety of your household, to be used as protection from possible airborne toxins. HEPA filtration systems can trap 99.97% of particles larger than 0.3 microns. All Alen Air Purifiers use HEPA style air filters.

Various other air purification technologies are available, and Alen Corp recommends using these as secondary technologies to complement our powerful HEPA air filters. Used alone, the other air purification technologies are not believed to be potent enough to be an effective, stand-alone solution.
The EPA describes Volatile Organic Compounds as chemicals that evaporate at room temperature which are emitted by a wide array of products used in homes––including paints and lacquers, paint strippers, varnishes, cleaning supplies, air fresheners, pesticides, building materials and even furnishings. VOCs are released from products into the home both during use and while stored. According to the EPA, VOCs cause eye, nose and throat irritation, frequent headaches, nausea, and can also damage the liver, kidney and central nervous system.
Many of Alen Corp's air filters include a layer of Activated Carbon. This layer is covered with microscopic cracks and holes that are designed to trap and remove airborne odors, gases and chemicals from cleaning products, personal care items, smoke, cooking odors, spoiled food and more. If your environment contains higher levels of VOCs, view our recommended air purifier for chemicals and vocs.