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www.alen.com   1-800-630-2396

KNOW YOUR AIR PURIFIER

When using the air purifier for the first time in a room, many prefer to use a higher fan speed 

like speed three or four for a couple of hours in order to clean the room’s air initially. Then, it is 

recommended that the air purifier is left on to run continuously.

Features

• 

HEPA type filtration captures dust, allergens and airborne pollutants

• 

Activated Carbon layer traps light odors and chemicals (VOCs) from common  

household products

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Ionizer charges particles, causing them to clump together for improved filtration

• 

Alen’s Smart-Sensor Technology automatically adjusts filtration levels based on level 

of airborne pollutants. When the fan speed is set to AUTO, these sensors increase or 

decrease the unit’s speed based on the level of odor or dust in the air.

• 

4 fan speeds with an 8 hour timer to control air circulation

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Remote control conveniently manages features

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Wall-mountable for space saving or can be placed on the floor

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Digital display with simple and intuitive touch button controls

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Auto-off safety feature when front cover is removed

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Filter designed for easy replacement

• 

Lifetime Limited Warranty

CARE & MAINTENANCE

Replacing The Filter

The filters used in all of Alen HEPA Air Purifiers are not designed to be washed, cleaned or 

otherwise reused. Over time, the filters become overloaded with particles, decreasing their 

filtration performance. We recommend regular filter replacements (at least every 6 months  

with normal use) to extend the life of your air purifier and maximize performance.

The black foam layer of the filter, known as the prefilter, captures large dust and hair. This 

layer is held on with Velcro

®

. Once removed, the Alen prefilter can be washed or vacuumed to 

maintain efficient operation of the unit.

For optimal performance, it is recommended that the air purifier is left on to run continuously. 

Under this type of usage, filters will need to be replaced approximately every six months. 

Why You Should Replace Your Filter

• 

You purchased an Alen Air Purifier to improve the quality of your indoor air.  
Changing your filters on time is the only way to maintain an optimal level of air quality. 

• 

Excessively dirty filters can compromise the level of clean air your air purifier can provide. 

Summary of Contents for A375

Page 1: ...USER MANUAL Alen A375 HEPA Air Purifier We would love to hear from you If you have any questions please contact us at 1 800 630 2396 or email service alen com ...

Page 2: ...ing Your Unit Identification Of Parts Know Your Air Purifier 7 Care Maintenance 7 Replacing The Filter Why You Should Replace Your Filter Alen s Filter Subscription Program How To Replace The Filter How To Replace The UV Light Troubleshooting Tips 11 Warranty Information 12 ...

Page 3: ...ension cord Always unplug the unit before changing the filter Do not cover the unit or impede air flow Do not exceed the rating of the power outlet or connection device May cause electric shock or fire due to excess heat generation Do not insert or pull out plug with wet hands it may cause electric shock Never try to take apart or repair the unit by yourself Disconnect the power if strange sounds ...

Page 4: ...nt indicator Light bar will progressively illuminate as filter collects particles There are two green two yellow and one red bar Each bar represents approximately one month of continuous operation Once all five bars are fully illuminated red being the last it is time to change the filter 7 After changing the filter RESET the filter indicator by holding down TIMER while the unit is ON until the cle...

Page 5: ...sired hours in which to shut off unit 2 Press to START or STOP your air purifier 9 Dust and smell bars adjust horizontally as their levels change 6 Notifies you when it s time to replace the filter 7 Hold down TIMER after the filter has been changed 8 Press to turn UV Lights ON or OFF 3 Press to select one of four fan speeds The illuminated screen will display selected speed Rating label Wall moun...

Page 6: ...Fan Speed FAN SPEED Every time you press it the fan speed will vary according to the following order Low Medium High Quiet AutoRun 1 Hour 2 Hour 4 Hour Cancel 8 Hour Preset On Time Preset Off Time Preset Operation Fan Speed UV Press this key to start UV press it again to stop it IONIZER Press this key to turn on the ionizer press it again to stop it INCREASE An auxillary key of the set up key used...

Page 7: ... button controls Auto off safety feature when front cover is removed Filter designed for easy replacement Lifetime Limited Warranty CARE MAINTENANCE Replacing The Filter The filters used in all of Alen HEPA Air Purifiers are not designed to be washed cleaned or otherwise reused Over time the filters become overloaded with particles decreasing their filtration performance We recommend regular filte...

Page 8: ...ver run out of filters Superior Coverage Alen s exclusive Forever Guarantee warranty begins when you complete Product Registration and activate your Filter Subscription see page 12 for details To get started simply visit www alen com activate or call 1 800 630 2396 How To Replace The Filter 1 Always unplug the unit when installing a filter 2 Distinguish the front side from the back side of the fil...

Page 9: ...e air cleaner with the arrow pointing inward 5 Insert the top of the inlet grill first and then snap in the lower part of the grill 3 Remove the used filter by lifting the pull string 6 RESET the filter indicator by holding down TIMER while the unit is ON until the clean indicator light disappears ...

Page 10: ... in either direction until it unlocks from the socket Pull the pins out of the sides of the socket one end at a time 6 Unpack the new UV bulb gently by handling the ends only Starting with one end of the bulb then the other gently insert the metal pins on the bulb into the white slotted socket one pin at a time Once the ends of the bulb are completely inserted into the socket rotate the bulb a qua...

Page 11: ...an speed to 1 Make sure the room that the unit is placed in is dark Look through the top of the unit where the air blows out to see if there is a blue glow This glow is quite faint so you may need to press the UV button on off several times to see if you notice a difference If there is no glow then the UV lights have burnt out and need to be replaced Visit www AlenCorp com or call 1 800 630 2396 t...

Page 12: ...ase we warrant your Alen Air Purifier to be free from defects in materials or workmanship for the life of the unit All Alen warranties are transferrable To activate the lifetime warranty please register your Alen purifier and enroll in a filter subscription at www alen com register within 12 months of purchase What if I do not sign up for a filter subscription Without a filter subscription you may...

Page 13: ...vice center at Alen s expense Customer is responsible for packaging the filter All postage and shipping charges to send the replacement filter to you are the responsibility of Alen and included in this warranty DISCLAIMERS LIMITATIONS ALEN S WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE ALEN S SO...

Page 14: ...Copyright 2020 Alen Corp All Rights Reserved A375 June 2 2020 20200420_05 ...

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