|Winix 5500 2||Bissell air400 Air Purifier|
|Child Lock Function||No||No|
|For Large Rooms||No||No|
|Removes Cigarette Odor||Yes||Yes|
|Room Size and Airflow||Yes||Yes|
|Ideal for Asthmatic People||Yes||Yes|
|Eliminates Dust Mites||Yes||Yes|
|Removes Pet Dander||Yes||Yes|
|Gets Rid of Pollen||Yes||Yes|
|Filter Replacement Reminder||Yes||No|
|Easy Filter Replacement||Yes||Yes|
|Automatically Detects Airborne Particles||Yes||Yes|
|Size and Appearance||Yes||Yes|
|Filter Life - based on use||Yes||Yes|
|Controls and Modes||Yes||Yes|
Winix 5500 2: Room coverage is 360 Sq.ft - suitable for medium sized rooms. It uses a Smart Sensor Gauge and Auto mode to automatically adjust fan speed to offer you with thorough air filtration. It gets rid of bacteria, VOCs, Odors and Gases using its Plasma Wave Technology without emitting harmful ozone.
Bissell air400 Air Purifier: Room coverage is between 300 Sq.Ft & 400 Sq.Ft. It has a 3 stage filtration system which ensures that all small particles of about 0.3 micron are trapped and filtered. It also uses an activated carbon filter to capture and filter bad odors like cigarette.
Winix 5500 2: It uses a True HEPA Filter, Odor Reducing Carbon Filter and WINIX PlasmaWave Technology to filter 99.97% of air contaminants. WINIX 5500-2 can capture and remove Pollen, Dust, Some, Pet Dander, Mold Spores, Volatile Organic Compounds, and Household Odors.
Bissell air400 Air Purifier: Uses a HEPA filter to capture 99.97% of air contaminants. It works hand-in-hand with the Pre-filter and an activated Carbon filter which captures Odor and germs. It will trap and pull in contaminated air through the back panel, filter it extensively and release it through the top vent.
Winix 5500 2: The Set and Forget function allows you to time and schedule the machine - you don't have to worry about air quality when you're not at home, the unit's fan speed will automatically adjust to your indoor environment.
Winix 5500 2: Uses its 3 stage air purification system to get rid of Cigarette Odor.The Coated Deodorization Carbon Filter reduces VOCs and household odors from cigarette smoking, cooking, and pet urine.
Bissell air400 Air Purifier: Features a 1 inch thick activated carbon filter to capture various household odors including cigarette odor.
Winix 5500 2: Room coverage is 360 sq. ft. AHAM Verified & CADR Rating for Dust - 243 sq.ft, for Pollen - 246 Sq.ft, for Smoke - 232 Sq.ft
Bissell air400 Air Purifier: Room coverage is between 300 Sq.ft and 400 Sq.ft. Air flow quality is great, the unit has an auto mode, but while in the auto mode, the CirQulate Syste offers thorough filtration basing on the quality of air in your home.
Winix 5500 2: The unit is Energy Star Certified - it uses very little power to clean and filter air in your room. Its True HEPA filter & AOC Carbon Filter lasts up to 12 months and the Pre-filter is Permanent.
Bissell air400 Air Purifier: The unit is Energy Star Certified. It uses 75 watts only while on the highest mode and filters air in your room 3 times per hour. It also has a night mode function which turns off lights on the top of the unit when lights go off in your room.
Winix 5500 2: The True HEPA filter and PlasmaWave Technology work hand-in-hand to break down allergens, odors, indoor pollutants, chemical vapors, dust, dust mites, pet dander and other related air contaminants without emitting harmful ozone - but make it easier for people with Asthma leave comfortably.
Bissell air400 Air Purifier: Right, Its CADR is 279 for Smoke, 307 for Dust and 206 for pollen - so if you have asthma, you will find this unit relevant to your health.
Winix 5500 2: Its PlasmaWave technology creates Hydroxyl to neutralize germs, bacteria, VOCs, gases and odors
Bissell air400 Air Purifier: Gets rid of germs and bacteria that could cause harm to your health. The HEPA filter traps and removes 99.97% of air contaminants.
Winix 5500 2: These will be captured and eliminated by the True HEPA Filter because Dust mites are very small in size - about 0.3 microns in size, the Pre-filter can't eliminate them - though the fan will capture them and lead them to the TRUE HEPA filter.
Bissell air400 Air Purifier: Captures and removes dust mites that hide in thick carpets, sofas, bed sheets, rugs ....etc.
Winix 5500 2: The True HEPA filters will capture 99.97 of all airborne particles including pet dander that comes from your pets. The unit will release filtered safe air via the top vent.
Bissell air400 Air Purifier: If you suffer from allergies and have asthma - You will notice a huge air quality change when you put this unit in your room. It will get rid of pet dander and dust in your home.
Winix 5500 2: Since pollen is too small to be removed by the Pre-filter and Carbon Filter - It is the True HEPA Filter that will get rid of pollen thus save you from pollen related allergies like flu, sneezing and blocked nose.
Bissell air400 Air Purifier: Uses the HEPA Filter to capture and remove pollen that gets into the air you breathe thus saving you from pollen related allergies.
Winix 5500 2: Does not matter if the smoke is from the kitchen, cigarette or wild fire - Winix 5500-2's True HEPA Filter will trap and remove 99.97% of smoke.
Bissell air400 Air Purifier: Can detect and remove smoke from your room. This could be smoke from the kitchen or from a forest fire next to your home
Winix 5500 2: Can remove mold using its powerful True HEPA system.
Winix 5500 2: Yes, it is one of the best affordable air purifiers on the market.
Bissell air400 Air Purifier: YES. It is not expensive.
Winix 5500 2: Has a filter replacement reminder which notifies you when its time to replace air filters.
Winix 5500 2: The TrueHEPA filter traps 99.97% of Allergens that could make you sick thus make the environment you leave in safe.
Bissell air400 Air Purifier: Uses its HEPA air filter to capture 99.97% of air pollutants including allergens of all types. , it will trap and remove those small allergens that pets release from their saliva and dander.
Winix 5500 2: The unit operates quietly while in auto mode - so you won't lose your sleep
Bissell air400 Air Purifier: Runs quietly and it switches off its indicator lights when you switch off light in your room. You will sleep comfortably without getting any noise pollution.
Winix 5500 2: Uses Washable Advanced Odor Control carbon filters which should be cleaned every after 14 days; these pre-filters are permanent.
Bissell air400 Air Purifier: The pre-filter is washable. It traps large particles so that they don't reach the HEPA filter and carbon filter. You can wash it once every week.
Winix 5500 2: All you have to do is to turn off the air filter before removing filters (this is a safety precaution). After that - remove the front panel by pushing its upper edge and slowly pull forward. Then press the Pre-filter near the top of the filter, release and remove.
Bissell air400 Air Purifier: Simply open the purifier from the front panel and remove the old filters to be replaced.
Winix 5500 2: Has SmartSensors that monitor air quality 24/7. So the moment contaminants get into the air you breathe, the unit will automatically increase fan speed to capture allergens, pollen, dust, pet dander, dust mites, Odor, Vocs and Germs.
Bissell air400 Air Purifier: While in auto mode, the unit's sensors will always be on alert of air contaminants. Once the sensor detects a change in air quality, it adjusts fan speed to increase suction power of the unit.
Winix 5500 2: You can easily control Winix unit from the comfort of your couch. Things you can do with this remote control include; turning ON/OFF the unit, Enable Auto Mode and Increase Fan Speed.
Winix 5500 2: 70 Watts, Power Voltage - AC120V/60Hz
Bissell air400 Air Purifier: Uses only 75 watts while on its highest mode
Winix 5500 2: Yes it is energy star certified
Bissell air400 Air Purifier: Yes, it is energy start certified – your power bills won’t go up the roof.
Winix 5500 2: Dimension - 14.9 in(W) x 7.8 in(D) x 23.6 in(H) / Weight - 17.6 lbs
Bissell air400 Air Purifier: Unit Dimension is 16.13 x 9.75 x 24 inches. Control buttons are well positioned at the top and the AirQuality display is positioned at the front panel so you can easily know the quality of air in the room.
Winix 5500 2: Both the Carbon filter and True HEPA filter last up to 12 months.
Bissell air400 Air Purifier: On average it is 6 months.
Winix 5500 2: You can easily press the Mode button on the control panel to select Sleep mode. You will see a LED ''Sleep'' light indicating Sleep mode is activated.
Bissell air400 Air Purifier: Its called a Night Mode. The unit will detect that your room has got dark, so the white lights on the top of the unit will turn off and also the color wheel will go dim.
Winix 5500 2: Yes, it does not emit off bad gases.
Bissell air400 Air Purifier: YES
Winix 5500 2: (1) Auto Mode - enables auto operation based on the unit's air quality Smart Sensors. While in Auto Mode, fan speed is automatically adjusted basing on air quality indoors. (2) Sleep Mode - once it's in the sleep mode, the Air Quality Indicator LED light is disabled and the fan speed is automatically set to LOW. But you can change fan speed manually by pressing the Fan Speed Button.
Bissell air400 Air Purifier: All controls are found at the top of the unit. Modes include: Auto mode (auto detects air contaminants), Turbo mode (highest mode) and Silent mode (lowest mode - ideal for night time when you're sleeping).
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