If you looking for air purifiers then you are right place. We are searching for the best air purifiers on the market and analyze these products to provide you the best choice.
Reviews
1. Air Purifier, Mooka Compact Air Cleaner with True HEPA Filter, 20 CFM Air Sanitizer, Removes Allergens, Dust & Pollen, Home Air Filtration for Removing Pet, Smoking and Cooking Smells
Feature
TRUE HEPA TECHNOLOGY: The HEPA filter element has 3 stages of filtration that can help to remove 99.97% of airborne particles as small as 0.3 microns including pollen, ragweed and other allergens such as viruses, germs, dust mites, mold spores and cigarette smoke.ROUND DESIGN, WIDER AIR INTAKE: The 360 powerful duct system draws in more air, making it suitable for rooms with large volumes of air to purify, or rooms that need odors removing quickly.
CIRCULATE AND FRESHEN YOUR AIR: The odorous air gets sucked into bottom of the air purifier, filtered through the multi-layer filter, then ejected out of the top of the air purifier, filling your living space with cleaner, fresher-smelling air.
WHISPER-QUIET OPERATION: With a noise lower than 60dB, our air purifier silently sanitizes the air for easier breathing and a more restful sleep.
WARRANTY AND SERVICE: Our fan-favorite 12-month warranty and kick-ass customer service is supplied with all of our products. If you encounter any problems or have any questions, be sure to get in touch with us for a reply within 24 hours.
Description
The MOOKA air purifier is ideal for your family. Let your family breathe easily!Specifications:
Standby power: <2W
Input: 110V / 50Hz
Air output capacity: 20m/h 10%
Maximum noise: <60dB
Working humidity: 20% - 90% without condensation
True HEPA filter efficiency: 99.97%
Features:
-Nightlight Function
Cleans your air and lights up your path. Great for a nightstand in your children's bedroom or on a side table.
-Easy Operation
Different cleaning modes are available just by touching the sensitive buttons.
-Safe for Your Respiratory System
No harmful substances or ozone released as it filters. It purifies air fast and removes bacteria, pollen and odors from your home.
Attention:
-Please don't shake the product violently or drop it from a high place, so as not to damage the product or shorten its lifespan.
-Indoor use only; the product should not be used outdoors.
-Avoid blocking the air intake and the outlet openings.
-Please unplug the power cable when the air purifier is not in use for long periods.
-Disassembly of the product should only be done by a qualified technician.
2. PureZone 3-in-1 True HEPA Air Purifier – 3 Speeds Plus UV-C Air Sanitizer – Eliminates Dust, Pollen, Pet Dander, Smoke, Mold Spores, & Household Odors – with Whisper-Quiet Operation & Auto Off Timer
Feature
PURIFIES THE AIR: True HEPA filter captures 99.97% of dust, pollen, pet dander, smoke, mold spores, and household odors.DESTROYS GERMS & BACTERIA: UV-C light safely destroys micro-organisms such as germs, viruses, bacteria, and fungi.
WHISPER-QUIET OPERATION: With a noise level at just 30dB, PureZone silently sanitizes the air for easier breathing and more restful sleep.
EASY & EFFICIENT OPERATION: Sets up in seconds for immediate use out of the box and features an optional automatic timer that shuts off the unit after 2, 4, or 8 hours of continuous use to promote energy efficiency
WHAT YOU GET: Air purifier, 3-in-1 HEPA filter, user manual, industry-leading 5 Year Warranty, caring customer support 7 days a week, and the peace of mind that comes from a trusted brand with millions of customers worldwide.
Description
PureZone safely sanitizes the air in your home or office in a few short hours making it more breathable, enjoyable, and even healthier. The sleek, modern design complements any decor and is fully customizable with three speed settings and an automatic timer to conserve energy and extend the life of the 3-in-1 air filter. Thanks to True HEPA filtration-which is proven to eliminate 99.97% of particles as small as 0.3 microns-PureZone provides a perfect solution for making the air more comfortable for people who suffer from allergies, asthma or other breathing issues.PureZone is backed by Pure Enrichment's industry-leading 5-Year Warranty so your satisfaction is 100% guaranteed.
Product Features
3-in-1 Filter: Combines the power of a pre-filter, activated carbon filter, and HEPA filter into one.
UV-C Light: Adds a deeper level of air sanitation by safely eliminating germs, viruses and bacteria.
Automatic Timer: Shuts off the unit after 2, 4 or 8 hours of continuous operation.
3-Speed Fan: Offers adjustable low, medium, and high settings to better accommodate the needs of the room.
Filter Reset Indicator: Lets you know when it's time to change the filter.
Whisper-Quiet Operation: So quiet, you won't even know it's in the room.
Product Specifications
Size: 10.8" L x 6.9" W x 12.1" H
CADR: 80 cfm
Power: AC 120V, 50Hz, 60W
Noise Level: 30dB (Low), 40dB (Medium), 50dB(High)
UV Light: Wavelength: 254nm | Lamp life: Approx. 20,000 hours
Coverage Area: Up to 200 sq ft
What's in the Box
PureZone Air Purifier
3-in-1 True HEPA Air Filter
3. KOIOS Desktop Air Purifier with True HEPA Filter, Compact Air Cleaner for Rooms and Offices,Odor Allergen Allergies Eliminator,Home Air Fliltration with 2 Speeds,100% Ozone Free
Feature
TRUE HEPA TECHNOLOGY: Filters 99.97% of dust, pollen, smoke, odors, mold spores, and pet dander. This air purifier filters particles as small as 0.3 microns and larger, helping to improve overall health. Perfect for pet owners, babies, children, the elderly, or for anyone wanting to improve the air quality in their home. The perfect gift for parents, office mates and friendsMULTIPLE FILTRATION STAGES: The 3-in-1 purification filter applies the fine preliminary layer, the true HEPA layer and the activated carbon layer reducing unpleased odors effectively, such as pet, smoking and cooking odors dwelling around your living spaces. Ideal for people who suffer from allergies or nasal stuffiness.
SIMPLE TO USE & PORTABLE: Using this air purifier couldn't be easier as one-button operation turns it on/off and controls the fan speed. The stylish and compact design mean it looks great anywhere and fits almost any place. The low power consumption and low noise make it affordable to run and quiet.
CIRCULATE AND FRESHEN YOUR AIR: The odorous air gets sucked into bottom of the air purifier, filtered through the multi-layer filter, then ejected out of the top of the air purifier, filling your living space with cleaner, fresher-smelling air.
WARRANTY AND SERVICE: Our fan-favorite 12-month warranty and kick-ass customer service is supplied with all of our products. If you encounter any problems or have any questions, be sure to get in touch with us for a reply within 24 hours.
Description
Let Koios Air Purifier to Acompany You Always!Koios Air Purifier help to eliminate all germs, odors and allergens such as dust mites and mold spores easily. Just plug this device into any outlet, and enjoy the crisp and clean air.
-Three stages of filtration (Fine Preliminary, True HEPA, Activated Carbon filters) tackle 99.97% of particles and odors. Enjoy a cleaned-up breathing space all around it!
-Intimate presents for families and friends , Koios air purifier can bring your greetings to people you love !
-Suitable for babies ,elders and people who has rhinitisallergy symptoms ect; put it in your room refectorykitchenofficestudy ect, let the air purifier working for you
We suggest that replace the filter every 6 -8months , the air purifier filter refers to ASIN: B075K7DTTG
Specifications
Work voltage:DC 12V
Rated power :8W
Max.air follow:16CFM
HEPA type filter efficiency:99.97%
Negative ion density:10 millions/cc
Unit weight:0.93KG
Features:
Protable: small size and light weight
Sclient and easy to operate
Low power comsuption: Standby power<0.5W
Cylindrical appearance: Fashion and fit any place
USAGE AND NOTICE:
1.Please don't shake the product strongly or drop off the product from a higher place so as to longer as this would shorten its life span.
2.Indoor use only, the product should not be used in sunshine or a rainy surrounding.
3.Avoid blocking the air intake and the outlet openings.
4.Please unplug the power cable if the product is not used for a long time.
Package:
1*air purifier
1*True HEPA & activated carbon filter
1*AC adapter
1*User manual
4. LEVOIT LV-H132 Air Purifier with True Hepa Filter, Odor Allergies Eliminator for Smokers, Smoke, Dust, Mold, Home and Pets, Air Cleaner with Night Light, US-120V
Feature
Helps filter out smoke, contaminants, and odors from the wildfires.3 Stage Filtration System: Pre-filter, TRUE HEPA Filter, & Activated Carbon Filter. It removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander; filters particles as small as 0.3 microns and larger and filters air pollution of PM 2.5. Ideal for people who suffer from allergies, nasal stuffiness.
100% Ozone free, does not use UV or Ions which produce trace amounts of measurable ozone, a harmful air pollutant.
3 Speed Settings (low, medium, and high) provide options for various conditions.
Quietly operates throughout the night, and has a gentle night light with two brightness settings.
Unique size and contemporary design makes it a perfect fit in smaller rooms or office spaces. The perfect gift for family, friends, and office mates.
2-year warranty and lifetime support. On average, the filter should be replaced every 6 months and is available for purchase (Search for: LV-H132-RF); the air filter may need to be replaced sooner or later depending on the air quality in your area. Note: please remove the plastic bag of the HEPA filter and charcoal filter before running the air purifier.
Description
Love fresh air? Bring it insidewhether to your living room spread, atop a small nightstand, or right next to you at your work. Let it do its work, choose from low, medium, or high fan speed settings. Three stages of filtration (Fine Preliminary, True HEPA, Activated Carbon filters) tackle 99.97% of particles and odors. Enjoy a cleaned-up breathing space all around it. And sit back knowing theres a 2-year warranty that comes with lifetime support from Levoit customer service.Note:
1.Power Supply (only): AC 120V / 60 Hz.
2.Please check the filter's color to relief your concern on whether the device is purifying the air.
3. To be Ozone-free, this Levoit Air Purifier is NOT AN IONIZER and does NOT USE UV-C LIGHT. Ionic air purifier emits negatively charged ions into the atmosphere of a room. As a result, a small amount of ozone is produced. UV-C light systems will produce "photolytic" ozone when UV-C hits oxygen (O2) molecules. Ozone is an important part of the atmosphere, but ozone is harmful for the lungs at ground level.
5. Blue Pure 211+ Air Purifier with Particle and Carbon Filter for Allergen and Odor Reduction, Washable Pre-Filter, Large Rooms, by Blueair
Feature
CAPTURES 99% of PM 2.5 airborne pollutants; allergies, mold, dust, pet dander, smoke and pollen with specially designed particle filterACTIVATED CARBON filter removes common odors caused by smoking, pets, cooking, dorm room smells and VOCs.
TOP RATED air purifier for lowest sound output providing quiet operation. Energy Star rated for best in class energy performance.
OZONE REDUCING - air cleaner system, 3 fan speeds for use in large bedrooms, kitchens, living rooms, college rooms or large offices
For medium to large rooms between 400 sq. ft. and 600 sq. ft., AHAM rated at 540 sq. ft
Description
Fresh air never looked so good. Bringing a customized splash of color to your living space, this air cleaning powerhouse fits into any home environment. With a simplified and user friendly one-button control, select your fan speed (low, medium, or high) and let the Blueair Blue Pure 211+ take care of allergy causing pollutants and odors. Armed with three stages of filtration; colorful washable prefilter, particle and activated carbon your household particles dont stand a chance. Clean up your air and create the best breathing space possible for you and your family (including the furry pet family members). All Blue Pure units come with a 1-year warranty by Blueairs award winning Customer Service team, simply register your new unit to extend to a 2-year warranty.6. GermGuardian AC4825 3-in-1 Air Purifier with True HEPA Filter, UV-C Sanitizer, Captures Allergens, Smoke, Odors, Mold, Dust, Germs, Pets, Smokers, 22-Inch Germ Guardian Air Purifier
Feature
True HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens. Charcoal filter reduces common odors from pets, smoking and cooking.Air Purifiers with UV-C light technology work with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores.
22 inch 3 speed tower is best used for medium sized rooms and CADR rated 100+
IMPORTANT: Use GENUINE Guardian Technologies replacement parts to maintain product performance and warranty. Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter B - Model FLT4825 (ASIN B0055521W0) . To lengthen the life of your filter, a 4 pack of the carbon filters is also available - Model FLT22CB4 (ASIN B017ANUVC6). Voltage: 120V 60Hz
Safety certified by Intertek which is a Nationally Recognized Testing Laboratory. Certain units might produce mechanical noise during initial set-up which will subside after regular usage. Units are constantly life tested to insure the product meets the performance and durability expectations of the consumer.
Description
Germguardian AC4825 3-in-1 Air Cleaning System with True Hepa, UV-C Power and Odor Reduction.7. Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300
Feature
Recommended for Large Rooms (465 sq. ft.)4 air cleaning levels: Germ, General Clean, Allergen and Turbo
Automatic shut-off - 2, 4, or 8 hours. 3 air cleaning levels plus Turbo Clean setting
Filters and circulates Room Air 5X per hour when used in the recommended room size
To ensure stated product performance, use only Certified Honeywell Replacement Filters.
Description
Honeywell True HEPA Allergen Remover captures up to 99.97% of microscopic allergens, .3 microns or larger8. GermGuardian AC5350B Elite 4-in-1 Air Purifier with True HEPA Filter, UV-C Sanitizer, Captures Allergens, Smoke, Odors, Mold, Dust, Germs, Pets, Smokers, 28-Inch Germ Guardian Air Purifier
Feature
True HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollensAir Purifiers with Charcoal filters reduce common odors from pets, smoking and cooking.Cord Length: 6 feet
UV-C light technology works with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores
28 inch digital tower with 5 speeds is best used for medium to large rooms and CADR rated 110+.Select UV-C ON or OFF using UV-C Mode button and UV Bulb Replacement Indicator
IMPORTANT: Use GENUINE Guardian Technologies replacement parts to maintain product performance and warranty. Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter C - Model FLT5000 (ASIN B003AKIGFS). To lengthen the life of your filter, a 4 pack of the carbon filters is also available - Model FLT28CB4 (ASIN B017ANUUTA). Voltage: 120V 60Hz
Description
The 4-in-1 True HEPA Air Purifier is perfect for allergy sufferers. With a True HEPA filter, it captures 99.97% of dust and allergens as small as .3 microns in size! According to the American Academy of Pediatric Allergy and Immunology, doctors recommend HEPA air filtration to reduce exposure to indoor asthma triggers. More than just a filter, the UV-C light kills germs, while the charcoal filter captures odors. CADR Rated 110+ and standing 28 inches tall, it is lightweight and ideal to use in both medium to large rooms. The easy to use digital display panel includes UV-C control, a filter change indicator and an up to 8 hour timer. 5 speeds provide high speed allergen control down to ultra-quiet sleep mode. The Elite Collection provides both form and function to provide a superior air cleaning system. The simple, stylish design looks great in any home environment.Voltage: 120V 60Hz
9. Levoit LV-PUR131 Air Purifier with True HEPA Filter, Odor Allergies Eliminator, Air Cleaner for Large Room, Dust, Smoke, Mold, Pets, Smokers, Home, Auto Air Quality Monitor, 322 sq. ft, US-120V
Feature
3 Stage Filtration System: Pre-filter, TRUE HEPA Filter, & Activated Carbon Filter. It removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander; filters particles as small as 0.3 microns and larger and filters air pollution of PM 2.5. Ideal for people who suffer from allergies, nasal stuffiness.100% Ozone free, does not use UV or Ions which produce trace amounts of measurable ozone, a harmful air pollutant.
Smart auto mode to indicate the surrounding air quality, automatically suggests fan speed to purify your air faster.
Sleep mode sets the purifier to its lowest setting to produce fresh air as you soundly slumber without disturbing noise.
For added convenience, set the timer to have the air purifier operates anywhere from 1 to 12 hours
Covers up to an average to large living room of 322 sq.ft (30 m); CADR Rated 135+, refresh your air in 10 minutes.
2-year warranty and lifetime support. On average, the filter should be replaced every 6 months and is available for purchase (Search for: LV-PUR131-RF); the air filter may need to be replaced sooner or later depending on the air quality in your area. Note: please remove the plastic bag of the filter before running the air purifier.
Description
Refresh Your Living SpacesFeel refreshed and revitalized with the Levoit True HEPA Air Purifier. The air purifier uses a three stage filter that includes True HEPA (High Efficiency Particulate Air), Pre-Filter, and Activated Carbon filters to remove 99.97% of dust, allergens, bacteria and odors. With a CADR rating of 135+, this home essential can provide fresh air up to 328 ft (30 m), making it perfect for living rooms, bedrooms, or even offices. The air purifier is ideal for relieving seasonal allergies, people sensitive to air quality, or those who want to improve the air quality in their households. Perfect air purifier for pet owners, children, elderly, or for anyone wanting to improve air quality.
Intuitive Design
The Levoit True HEPA Air Purifier's intuitive touch control panel makes it easy to setup and use. Customize your settings by selecting from the three fan speeds and timer for up to 12 hours to deliver clean air into your living spaces. You can also set the air purifier to Sleep Mode, allowing you to sleep well into the night while the purifier produces fresh clean air quietly.
Note:
The back cover of the device must be placed back on the unit in order for it to power on.
Highly recommend to replace filter every 6 months.
Specifications
Power Supply: AC 120V / 60Hz
Rated Power: 40W
Applicable Area: 30 m
Operating Conditions: Temperatures -10C~55C (14F~131F)
Noise Level: <52dB
CADR: 230 m/h(135CFM)
Standby Power: <0.8W
10. Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter
Feature
True-HEPA filter captures 99.97% of airborne pollutants; dust mites, pet dander, pollen and other allergens as small as 0.3 microns.3 Stage cleaning, removes a range of allergens: dust, cigarette smoke, pollen, odors, pet dander, mold spores and organic chemicals
PlasmaWave acts as a permanent filter to safely break down odor, allergens, chemical vapors and other pollutants - with no harmful ozone
Smart Sensor gauges the air and our Auto Mode adjusts the fan to filter the air as needed; with a sleep mode for silent night-time operation
CADR rated for 360 sq. ft. Suitable for medium and large rooms; kids bedrooms, baby nurseries and offices
Description
The WINIX 5300-2 Air Cleaner is an evolution of the wildly popular 5300 model; designed for any home environment and ready to capture dust, pollen, pet dander, smoke, mold spores, VOC (volatile organic compounds) and household odors. With a CADR (Clean Air Delivery Rate) rating of 360 sq. ft. from AHAM (Association of Home Appliance Manufacturers), this unit is best used for medium to large living spaces, kitchens, or bedrooms. The WINIX 5300-2 uses a 3-stage air cleaning system, featuring an odor reducing carbon filter, 99.97 percent efficient True HEPA filter and WINIX PlasmaWave technology. Features: 360 sq. ft. VOC Smart Sensor, air quality visual indicator, light sensor, auto & sleep mode, CUL listed, AHAM CADR (Clean Air Delivery Rate) certified, CARB certified (California Air Resources Board), Energy Star certified.11. Coway AP-1512HH Mighty Air Purifier, White
Feature
Air Quality indicatorFilter change indicator
Ionizer & Eco mode
Recommended Room size : 49 sq.m (528 ft). Noise level : 24.4 - 53.8 dBA
Description
The mighty air purifier is compact by design, but is equipped with Cutting edge features to keep your indoor air clean. Equipped with a HEPA efficiency RATING of 99.97percent , it uses a four-stage filtration system to effectively eliminate odors and pollutants. This mighty machine includes an air quality indicator through our particle sensing technology that will kick your air purifier into high gear when needed. And when 30 minutes when pollution is not detected for 30 minutes, the fan will automatically stop to save energy.12. GermGuardian AC5250PT 3-in-1 Air Purifier with True HEPA Filter, UV-C Sanitizer, Captures Allergens, Smoke, Odors, Mold, Dust, Germs, Pets, Smokers, 28-Inch Digital Germ Guardian Air Purifier
Feature
True HEPA + Pet Pure Treatment: True HEPA captures 99.97% of allergens including pet dander, dust mites and pollen. The Pet Pure is an antimicrobial agent added to the filter to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter.Air Purifiers with Charcoal filters reduce common odors from pets, smoking and cooking. Make sure that the HEPA Filter is firmly in place
UV-C light technology works with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores
28 inch digital tower with 5 speeds is best used for medium to large rooms and CADR rated 125+
IMPORTANT: Use GENUINE Guardian Technologies replacement parts to maintain product performance and warranty. Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter C Pet- Model FLT5250PT (ASIN B00A9JHQ1I). To lengthen the life of your filter, a 4 pack of the carbon filters is also available - Model FLT28CB4 (ASIN B017ANUUTA). Voltage: 120V 60Hz
Description
The 3-in-1 True HEPA Air Purifier is perfect for allergy sufferers. True HEPA captures 99.97% of allergens including pet dander, dust mites and pollen. The Pet Pure is an antimicrobial agent added to the filter to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter. According to the American Academy of Pediatric Allergy and Immunology, doctors recommend HEPA air filtration to reduce exposure to indoor asthma triggers. More than just a filter, the UV-C light kills germs, while the charcoal filter captures odors. CADR Rated 125+ and standing 28 inches tall, it is lightweight and ideal to use in both medium to large rooms. The easy to use digital display panel includes UV-C control, a filter change indicator and an up to 8 hour timer. 5 speeds provide high speed allergen control down to ultra-quiet sleep mode. Voltage: 120V 60Hz13. Honeywell 50250-S True HEPA Air Purifier, 390 sq. ft.
Feature
Patented 360? degree air intake and discharge maximizes efficiencySurroundSeal Technology helps minimize air leaks
3 air cleaning levels
Most effective for Large to Extra Large Rooms
To ensure stated product performance, use only Certified Honeywell Replacement Filters.
Description
*From the air that passes through the filter. Overall particle reduction depends on many factors including the amount of air processed, the pollutant type and the pollutant introduction rate into the environment.
**When operated with the odor reducing pre-filter. It is recommended that the pre-filter be replaced every 3 months to effectively reduce common household odors and gases in a room. This product does not reduce or absorb carbon monoxide gas. Make sure gas appliances are well ventilated.
***Based on 11/10 AQS survey results reporting 124 out of 172 (72%) of surveyed Allergists that recommend an air purifier to their patients, recommend "Honeywell" air purifiers.
14. Honeywell HPA100 True HEPA Allergen Remover, 155 sq. ft.
Feature
Recommended for Medium Rooms (155 sq. ft.)4 air cleaning levels: Germ, General Clean, Allergen and Turbo
Automatic shut-off - 2, 4, or 8 hours
Electronic filter replacement reminders
To ensure stated product performance, use only Certified Honeywell Replacement Filters.
Description
Honeywell True HEPA Allergen Remover captures up to 99.97% of microscopic allergens, .3 microns or larger15. GermGuardian AC4100 3-in-1 Air Purifier with HEPA Filter, UV-C Sanitizer, Captures Allergens, Smoke, Odors, Mold, Dust, Germs, Pets, Smokers, Germ Guardian Air Purifier
Feature
HEPA Filter captures dust and allergens, pet dander, mold spores and plant pollens.Air Purifiers with Charcoal filters reduce common odors from pets, smoking and cooking
UV-C light technology works with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores.
11 inch 3 speed table top tower is perfect for any room and fits great in small spaces
IMPORTANT: Use GENUINE Guardian Technologies replacement parts to maintain product performance and warranty. Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter E - Model FLT4100 (ASIN B00INIJN1S). To lengthen the life of your filter, a 4 pack of the carbon filters is also available - Model FLT11CB4 (B01FHSTMLC). Voltage: 120V 60Hz
Allergens Captured- Bacteria, Household Dust, Mold Spores, Odors, Pet Dander, Pollen, Tobacco Smoke, Viruses