10 Best Asthma Air Purifiers 2024 in the US

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HEPASilent Performance: Up to 83% faster cleaning and 50% less noise with proprietary technology.

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Quiet Operation: Quiet Mark certified, operating between 23-53dB for a peaceful environment.

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Large Room Coverage: Cleans up to 1,524sqft in 30min or 635sqft in 12.5min on high.

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High-Efficiency Filtration: Removes 99.97% of airborne particles as small as 0.1 microns, including viruses and smoke.

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Smart Features: App scheduling, air quality monitoring, filter tracking, and Alexa voice control.

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3-in-1 Filtration: Utilizes 360° VortexAir Technology 3.0 and 3-stage filtration for superior air purification.

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Quiet Operation: Operates at a low noise level of 25dB, ensuring a peaceful environment for better sleep.

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Aromatherapy Enabled: Features a fragrance sponge for adding essential oils to combat pet odors or musty smells.

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Genuine Replacement Filters: Designed to use genuine Levoit filters for optimal performance and reliability.

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Compact and Portable: Lightweight and travel-friendly design, perfect for small spaces and easy relocation.

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Room Coverage: Accommodates rooms up to 361 sq. ft with high CADR ratings for dust, pollen, and smoke.

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4 Stage Filtration: Includes Pre-filter, Deodorization filter, True HEPA filter, and Vital Ion to capture 99.97% of airborne particles.

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Real-Time Air Quality Monitoring: Pollution sensor with color-coded LED for immediate air quality status.

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Auto & Eco Mode: Automatically adjusts fan speed based on air quality and conserves energy when no pollution is detected.

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Adjustable Timer: Features a programmable timer to run the purifier for 1, 4, or 8 hours.

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High Power Purification: Powerful air purifying performance suitable for large rooms, with technology to scan and eliminate tiny contaminants.

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Large Coverage: Purifies 635 ft² in 12 minutes and up to 3,175 ft² in 60 minutes, ideal for open floor plans and high-ceiling houses.

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3-in-1 Filtration: Efficient 3-stage filtration system captures at least 99.97% of airborne particles as small as 0.3 microns.

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Genuine Levoit Filters: Designed to use only genuine Levoit replacement filters for optimal performance and reliability.

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Quiet Operation: QuietKEAP Technology ensures maximum filtration with minimal noise, and a light sensor for undisturbed sleep.

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Large Room Coverage: Purifies a room up to 1900 ft², with varying purification rates depending on room size.

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Enhanced Air Intake: Features a traditional and U-shaped air inlet for efficient trapping of pet fur and hair.

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Auto Mode for Comfortable Nights: Automatically adjusts fan speed for air quality maintenance during sleep.

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Pet Mode: Special mode for pet owners to filter hair and odors, accessible via the Vesync app.

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3-Stage Filtration System: Includes a washable pre-filter, HEPA filter for allergens, and activated carbon filter for odors and VOCs.

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Automatic Sensing: Detects and captures pollutants automatically for enhanced air quality.

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Intelligent Purification and Cooling: Smartly purifies and cools the air, providing a comfortable environment.

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HEPA H13 Sealed Filtration: Fully sealed system to HEPA H13 standard ensures trapped pollutants don't escape.

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Air Multiplier Technology: Circulates purified air throughout the room efficiently.

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Real-time Air Quality Reporting: Displays air quality updates in real-time on LCD and MyDyson app.

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Sleep Mode with Light Detection: Automatically dims display lights and operates at quiet fan speeds in the dark to promote better sleep.

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Pet Owner Mode: Features a Pet Mode that conserves energy and effectively captures pet fur and large particles.

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3-Stage Filtration System: Includes a washable pre-filter, HEPA filter for trapping small particles, and activated carbon filter for neutralizing odors.

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High-Efficiency HEPA Filter: Captures 99.97% of airborne particles as small as 0.3 microns, including dust and pollen.

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Customizable Schedules: Allows creation of detailed schedules with preferred fan speeds and modes like Auto or Sleep.

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HEPASilent Technology: Delivers faster cleaning with 50% less noise.

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Quiet Performance: Operates at 19-48 db, ideal for night mode.

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Fast Air Cleaning: Cleans 465 sqft in 30 min or 193 sqft in 12.5 min.

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App Enabled: Includes scheduling, air quality monitoring, and Alexa control.

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Energy Efficient: Uses 2.5W-20W, less than an LED bulb on low.

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HEPASilent Technology: Utilizes HEPASilent technology to efficiently clean up to 432sqft in 30 minutes.

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Whisper-Silent Operation: Operates quietly with noise levels as low as 24 dB, suitable for bedrooms and nurseries.

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Dual Filtration: Captures 99.97% of airborne particles as small as 0.1 microns, including viruses, bacteria, dust, pollen, and smoke.

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Personalizable Design: Comes with three washable pre-filter colors to match your interior, with an Arctic Trail dark gray pre-filter included.

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Energy Efficient: Energy Star certified as Most Efficient, using less energy than a light bulb.

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Formaldehyde Destruction: Detects and destroys formaldehyde, ensuring removal of this harmful chemical from your environment.

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HEPA H13 Filtration: Fully sealed to HEPA H13 standard, capturing 99.97% of particles as small as 0.3 microns.

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Air Multiplier Technology: Generates powerful circulation to draw pollutants into the machine, projecting purified air throughout the room.

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Real-Time Air Quality Monitoring: Automatically senses air quality changes and provides live feedback on the LCD screen and MyDyson app.

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Versatile Modes: Features Fan mode with oscillation and Backwards airflow mode for purification without cooling.