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Alen - BreatheSmart FLEX HEPA Air Purifier +HEPA-Pure

Experience Alen’s world-class True HEPA (H13) air cleaning performance at an incredible value. The FLEX quietly purifies up to 700 SqFt of air every 30 minutes, removing 99.99% of airborne dust, allergens, and other contaminants down to 0.1 microns. As a SleepScore Labs Validated product, the purifier helped people in studies by SleepScore Labs studies feel they fell asleep faster and woke up refreshed. And everyone loves its FLEXible customization options.

If this product does not meet your standards, it may be returned within 30 days.

FREE USA Shipping

Excludes Alaska and Hawaii. We ship to Canada.

Quick Details

  • Validated by SleepScore Labs - See Results
  • Sleep Superbly– Dim or darken lights at bedtime with one touch for an ideal sleep environment
  • Tailored to You- Antimicrobial True HEPA (H13) filter options to target chemicals (VOCs), smoke, and odors
  • Whisper Quiet- Tuned to produce soothing pink noise for enhanced sleep
  • Breathe Beautifully- Accent your décor with a diverse selection of designer panel options
  • Guaranteed Forever- Lifetime peace of mind from the industry’s only lifetime warranty

Product Features

  • Filter life indicator 
  • Power/Sleep Mode 
  • 4-speed fan 
  • Lock
  • Handle for easy moving 
  • Energy Star Certified 
  • CARB Compliant 

New Design. Improved Sensor Technology. More Powerful Than Ever.

Auto mode allows our intelligent sensor technology to adjust to your changing environment. LED indicator always lets you know the status of the air quality around you. And when it's bedtime, lights-off mode cleans the air without disturbing your sleep.

Medical-Grade Protection

Long-lasting True HEPA (H13) filters remove 99.99% of airborne contaminants down to 0.1 microns, including allergens and aerosolized viruses. Alen’s medical-grade filtration is highly effective thanks to powerful yet quiet airflow, ensuring pure air for your entire room. As an added safeguard, Alen’s proprietary antimicrobial treatment kills mold and bacteria.

Guaranteed. Forever. 

When it comes to quality, performance and customer satisfaction, Alen stands by their air purifiers for life. Your life. 


  • Coverage Area: Up to 700 sq. ft. (74.32 m2) | Cleans all air in room every 30 minutes @ highest setting .
  • Filtration rate: Removes 99.99% of particles greater than 0.1 microns 
  • CFM (airflow in Cubic Feet per Minute): Speed 1: 53 CFM; Speed 2: 135 CFM; Speed 3: 147 CFM; Turbo: 187 CFM 
  • CADR: 225
  • Noise levels: Speed 1: 39 dB (whisper); Speed 2: 42 dB (light rainfall); Speed 3: 49 dB (heavy rainfall); Turbo: 55 dB (box fan, medium) 
  • Power consumption: 0.8 to 56 watts
  • Power supply: 120 AV, 60HZ (2 Prong Power Cord) 
  • Filter life: 12 months | @ Recommended 24hr/day operation 
  • Size: 25" x 15" x 8.5" 
  • Weight: 15 lbs 

Package Contents

  • BreatheSmart FLEX air purifier
  • HEPA-Pure filter
  • Designer panel (optional)
  • Quick start guide

SleepScore Validated

Better sleep with SleepScore

SleepScore Validated products have been shown to improve sleep in SleepScore Labs’ extensive studies. This is your assurance that the product works as described for many people and has been evaluated at a higher level than the rest of the curated products.

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