10 Best Hepa Air Purifier for Cannabis Smoke in UK 2025
Updated on 16/12/2025
#1
Recommended
31% Off
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- Air purifier with a Clean Air Delivery Rate (CADR) of 390m³/h and a coverage area of 99m², effectively filters allergens, dust, pet hair, and VOCs.
- Features a 4-stage filtration system: washable pre-filter for large particles, active carbon filter for odors, and HEPA filter capturing 99.999% of particles down to 0.1 microns; includes PlasmaWave technology.
- Intuitive control panel with auto-mode and intelligent particle sensor for automatic air quality adjustments; manual operation with 5 fan speeds and a sleep mode available.
- Sleep mode operates quietly at 27.4 dB with dimmed lights; auto mode uses sensor technology for automatic air cleaning and speed adjustments.
- Tested and certified by Allergy UK and AHAM; cleans indoor air effectively, with purification in as little as 20 minutes.
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- Air purifier with a Clean Air Delivery Rate (CADR) of 390m³/h and a coverage area of 99m², effectively filters allergens, dust, pet hair, and VOCs.
- Features a 4-stage filtration system: washable pre-filter for large particles, active carbon filter for odors, and HEPA filter capturing 99.999% of particles down to 0.1 microns; includes PlasmaWave technology.
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#2
Value for Money
20% Off
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- Offers four types of replacement filters: original, pet allergy, toxin absorber, and mould & bacteria.
- CADR rating of 187m³/h, effectively covering areas up to 80 m² per hour or 40 m² twice per hour.
- Utilizes a HEPA filter, ultra-fine prefilter, and activated carbon filter to capture allergens including dust, pollen, and pet hair while reducing odors.
- Features QuietKEAP technology ensuring noise levels as low as 24dB in Sleep Mode; display light can be turned off for undisturbed sleep.
- Timer for auto shut-off at 2, 4, 6, or 8 hours; four fan speeds for customized air purification needs.
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- Offers four types of replacement filters: original, pet allergy, toxin absorber, and mould & bacteria.
- CADR rating of 187m³/h, effectively covering areas up to 80 m² per hour or 40 m² twice per hour.
- Utilizes a HEPA filter, ultra-fine prefilter, and activated carbon filter to capture allergens including dust, pollen, and pet hair while reducing odors.
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#3
43% Off
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- Specialized filter effectively removes smoke, pollen, dust, and pet dander, enhancing indoor air quality.
- Quiet operation at 22dB with a gentle blue ambient light for restful nighttime use.
- Aromatherapy pad allows blending of essential oils with purified air for a pleasant atmosphere.
- Two adjustable fan speeds and a built-in timer for customized air purification.
- 360-degree air intake system ensures uniform air purification in any room.
- Filter replacement indicator prompts you when to replace filters for optimal performance.
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- Specialized filter effectively removes smoke, pollen, dust, and pet dander, enhancing indoor air quality.
- Quiet operation at 22dB with a gentle blue ambient light for restful nighttime use.
- Aromatherapy pad allows blending of essential oils with purified air for a pleasant atmosphere.
- Two adjustable fan speeds and a built-in timer for customized air purification.
- 360-degree air intake system ensures uniform air purification in any room.
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#4
50% Off
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- High-efficiency original filter effectively removes smoke, pollen, dust, and pet dander, enhancing indoor air quality.
- Quiet operation at 22dB with a gentle blue ambient light, perfect for a peaceful sleep environment.
- Aromatherapy pad allows for the addition of essential oils, creating a pleasant scent in purified air.
- Two adjustable fan speeds and a built-in timer for customizable air purification.
- 360-degree air intake system ensures thorough purification for various room types and easy portability.
- Independently tested for effective particle absorption and includes filter change indicator for maintenance.
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- High-efficiency original filter effectively removes smoke, pollen, dust, and pet dander, enhancing indoor air quality.
- Quiet operation at 22dB with a gentle blue ambient light, perfect for a peaceful sleep environment.
- Aromatherapy pad allows for the addition of essential oils, creating a pleasant scent in purified air.
- Two adjustable fan speeds and a built-in timer for customizable air purification.
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#5
39% Off
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- Includes one HEPA filter with a micro USB cable; replacement filters needed every 6 months, washing is not an option.
- Filters 99.97% of dust, pollen, smoke, odors, mold spores, and pet dander, capturing particles as small as 0.3 microns and improving air quality by reducing PM 2.5 levels.
- Compact design (12.5x12.5x20 cm, 550 grams) suitable for areas up to 10 square meters, ideal for small rooms like studios, bedrooms, or offices.
- Simple operation with a one-touch switch; automatic shut-off after 8 hours and features a warm blue LED night light.
- Generates negative ions for effective air filtration while enhancing mood without producing ozone, making it a thoughtful gift for loved ones.
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- Includes one HEPA filter with a micro USB cable; replacement filters needed every 6 months, washing is not an option.
- Filters 99.97% of dust, pollen, smoke, odors, mold spores, and pet dander, capturing particles as small as 0.3 microns and improving air quality by reducing PM 2.5 levels.
- Compact design (12.5x12.5x20 cm, 550 grams) suitable for areas up to 10 square meters, ideal for small rooms like studios, bedrooms, or offices.
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#6
20% Off
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- Functions as both an air purifier and aroma diffuser; simply add essential oils to the aroma pad for fragrance while cleaning the air.
- Equipped with a dual filter system, including a pre-filter, HEPA filter, and activated carbon filter for superior air quality.
- The HEPA filter captures airborne particles as small as 0.3 microns, aiding in the relief of asthma and allergy symptoms.
- Operates in sleep mode at only 28 decibels for undisturbed sleep; the button light turns off after five seconds to minimize distractions.
- Designed for use in small spaces up to 161 sq ft, delivering clean air in just 30 minutes on high speed.
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- Functions as both an air purifier and aroma diffuser; simply add essential oils to the aroma pad for fragrance while cleaning the air.
- Equipped with a dual filter system, including a pre-filter, HEPA filter, and activated carbon filter for superior air quality.
- The HEPA filter captures airborne particles as small as 0.3 microns, aiding in the relief of asthma and allergy symptoms.
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#7
15% Off
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- Professional customer support available for air purifier inquiries
- Effectively addresses common air quality issues such as pollen, dust, and pet dander
- Equipped with 360° VortexAir technology and 3-stage filtration, purifying a 17㎡ area in 30 minutes
- Operates quietly at noise levels as low as 25dB, ensuring a peaceful environment
- Energy-efficient with a 7W rating and Energy Star certification
- Helps alleviate allergy symptoms by filtering out pollen, improving air quality
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- Professional customer support available for air purifier inquiries
- Effectively addresses common air quality issues such as pollen, dust, and pet dander
- Equipped with 360° VortexAir technology and 3-stage filtration, purifying a 17㎡ area in 30 minutes
- Operates quietly at noise levels as low as 25dB, ensuring a peaceful environment
- Energy-efficient with a 7W rating and Energy Star certification
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#8
43% Off
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- Clean Air Delivery Rate of 120.1 m³/h for effective air purification.
- Cleans spaces up to 50㎡ per hour, ideal for various room types.
- Operates quietly at 18.1 dB in sleep mode, suitable for sensitive environments.
- Features an Auto Mode with a built-in dust sensor for automatic fan speed adjustment.
- Utilizes a HyperCaptive Filtration System to eliminate 99.999% of ultrafine particles, including allergens and dust.
- Established air technology provider since 1994, with extensive patents and proven global presence.
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- Clean Air Delivery Rate of 120.1 m³/h for effective air purification.
- Cleans spaces up to 50㎡ per hour, ideal for various room types.
- Operates quietly at 18.1 dB in sleep mode, suitable for sensitive environments.
- Features an Auto Mode with a built-in dust sensor for automatic fan speed adjustment.
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#9
29% Off
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- High-efficiency filtration system with 360° air intake, ideal for spaces up to 1076 ft². Effective for various room sizes: refreshes a 120 ft² bedroom every 7 minutes, a 215 ft² living room every 12 minutes, and larger areas hourly.
- Designed for pet-friendly homes, this air purifier captures pet hair and dander efficiently with a vertical grille inlet, preventing clogging and maintaining strong airflow for a fresher home.
- Features a True H13 HEPA filter with a 3-stage filtration system to capture airborne particles as small as 0.3 microns, including allergens and odors, improving air quality and reducing respiratory issues.
- Control your air purifier remotely through the PJ Robot APP, accessing real-time air quality and filter status. Compatible with Alexa for hands-free operation, ensuring smart and convenient air management.
- Operates quietly in Sleep Mode at 25dB, with customizable timer options and Child Lock feature. Certified for safety and efficiency by relevant regulatory bodies.
- Includes a filter replacement indicator, recommending filter changes every 3 to 4 months for optimal performance. Genuine replacement filters are advised for best results.
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- High-efficiency filtration system with 360° air intake, ideal for spaces up to 1076 ft². Effective for various room sizes: refreshes a 120 ft² bedroom every 7 minutes, a 215 ft² living room every 12 minutes, and larger areas hourly.
- Designed for pet-friendly homes, this air purifier captures pet hair and dander efficiently with a vertical grille inlet, preventing clogging and maintaining strong airflow for a fresher home.
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#10
30% Off
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- Smartphone control via VeSync App for fan speed and mode adjustments, and filter monitoring from anywhere
- Compatible with Amazon Alexa and Google Assistant for hands-free operation
- 360° design purifies air for rooms up to 70㎡ once per hour or 35㎡ twice per hour
- 3-stage filtration system captures large particles, odors, and 99.97% of airborne pollutants
- Quiet operation in Sleep Mode at 24dB with an option to turn off display lights
- Certified by CE, RoHS, and Energy Star, ensuring it meets health and safety standards
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- Smartphone control via VeSync App for fan speed and mode adjustments, and filter monitoring from anywhere
- Compatible with Amazon Alexa and Google Assistant for hands-free operation
- 360° design purifies air for rooms up to 70㎡ once per hour or 35㎡ twice per hour
- 3-stage filtration system captures large particles, odors, and 99.97% of airborne pollutants
- Quiet operation in Sleep Mode at 24dB with an option to turn off display lights
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