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9 Best Air Purifiers Under $100

Last updated June 3, 2021

This post may contain affiliate links.

Author
Author avatar Danny Ashton

Danny as been writing about air purifiers for 10+ years. He is a major fan of home technology, which makes him the perfect person to test and evaluate products for HouseFresh

Having clean air in your home is paramount in keeping you and your household healthy. Outside there is an abundance of toxins with the capability to cause us harm, pollution, viruses, and allergens to name a few, so it’s no wonder that more and more people are turning to air purifiers for help. If you’re on a tight budget, it can be hard to find a unit that’s up to the task of keeping you and your family safe.

With this list, you no longer need to plan a good old-fashioned heist to bag yourself a good quality air purifier, as we’ve picked nine of the best out there that are all under $100.

The physical effects of allergies vary from person to person, but many people exhibit common symptoms such as:

  • Congestion
  • Sneezing
  • Chest tightness
  • Eczema
  • Rashes

If you are allergic to pet dander, check out our top picks of the Best Air Purifiers for a Home with Pet Allergies.

The products we’ve chosen for our list all include HEPA filtration technology, which is the industry standard when it comes to filtration. HEPA traps microscopic matter, bacteria, and unpleasant smells, keeping your space clean. We also look at each product’s Clean Air Delivery Rate (CADR). CADR measures the efficiency of your air purifier’s filter along with how much air can move through it. This reading reveals if that specific unit will thoroughly clean all of the air in the size of the room you inhabit. 

We use consumer report analysis so that you can decide which unit you’d like based on real reports. By evaluating user experiences, we determine which purifiers are best for reducing contaminants and will keep you breathing the freshest, cleanest air.

9 Best Air Purifiers Under $100:  In-depth Review

1. LEVOIT Core 300

LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White

The Levoit Core 300 air purifier has been designed with the allergen sufferer in mind. It boasts VortexAir™ Technology with 360⁰ air intake. You can choose from a variety of filters to suit your individual needs. A four-stage mold and bacteria filter, a three-stage pet allergy filter, toxin absorber filter, or the three-stage original filter are just some of the options available. All filters have a pre-filter to capture larger particles, an H13 True HEPA filter to trap a minimum of 99.97% of airborne particles such as pollen or smoke particles, and a highly efficient activated carbon filter to help neutralize smoke fumes, cooking smells, and pet odors.

  • Purifier Technology: H13 True HEPA Filtration
  • Room Size Suitability: 219 sq. ft.
  • Filter Life: Six to eight months for the HEPA & Carbon Filters
  • Noise Level: 24-50dB
  • Monthly Energy Consumption: $13 per year

What We Love

  • In sleep mode, the purifiers indicators are dimmed
  • There are no annoying beeps or other sounds when you press the buttons
  • The speed at which the air gets cleaned even on the low setting 
  • At only 14 inches tall, it can easily be placed anywhere in the room

We Don’t Like This As Much

  • If it is unplugged, the settings are lost and have to be reset
  • Manual speed settings. An “Auto air sensor” feature would be nice
Sale
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
  • High Performance: Enjoy fresh air in 12 minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 refreshes the air 5x per hour in rooms as large as 219 ft² / 20 m²
  • Find Relief: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
  • Multiple Filter Choices: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in wildfire, smoke and VOCs. And if you’re a pet owner, try the Pet Allergy Filter to capture pet dander and absorb unpleasant odors.
  • Most Silent Air Cleaner: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology reduces noise levels to a near-silent 24dB, ensuring the Core 300 won’t get in the way of a good night’s rest.
  • Sleek Design: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and modern white finish help your air purifier fit anywhere in your home/bedroom/room.

2. Germ Guardian AC4825E

Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust Pet Dander, Mold Odors, Quiet 22 inch 4-in-1 Air Purifier for Home AC4825E

The AC4825 4-in-1 Air purifier from GermGuardian is the ideal air purifier for your home. At just over 21 inches tall, it cycles the air nearly five times per hour in a 153 sq ft room. It also offers multiple cleaning levels with True HEPA filtration, a pre-filter, charcoal filter, and a UV-C light sanitizer to kill airborne germs and viruses. The UV-C light is an optional extra. With three speed settings, you can customize your comfort level by using the ultra-quiet slow speed at night so as not to disturb your sleep. The easy-to-operate top panel has a rotating power knob, fan speed control, UV-C light button, and power/change filter indicator lights.

  • Purifier Technology: H13 True HEPA Filtration
  • Room Size Suitability: 153 sq. ft.
  • Filter Life: Six to eight months
  • Noise Level: 40dB
  • Monthly Energy Consumption: $19 per year

What We Love

  • This HEPA filter traps dust, hair, and pet dander without a problem
  • The gentle “white noise” at night has a calming effect
  • Does not emit ozone
  • Despite its size, it is powerful enough to remove dust and odors

We Don’t Like This as Much

  • Gaps around the filter can allow air to bypass it
  • Users report a high noise level when on high speed
Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust Pet Dander, Mold Odors, Quiet 22 inch 4-in-1 Air Purifier for Home AC4825E
  • 4 IN 1 AIR PURIFIER FOR HOME True HEPA air filter reduces up to 99.97% of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the air
  • KILLS GERMS UV C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds
  • TRAPS ALLERGENS Pre filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter. Bulb wattage is 55W
  • REDUCES ODORS Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more.Construction: Plastic
  • QUIET OPERATION The lowest setting can be used as gentle white noise at night for a quiet, restful sleep

3. VEVA 8000 Elite Pro Series

VEVA 8000 Elite Pro Series Air Purifier HEPA Filter & 4 Premium Activated Carbon Pre Filters Removes Allergens, Smoke, Dust, Pet Dander & Odor Complete Tower Air Cleaner Home & Office, 325 Sq Ft.

The VEVA 8000 has a sleek and innovative design, making it a perfect addition to any small to medium-sized room. It has a removable base so it can be changed from a floor tower unit to a tabletop air purifier in seconds. Measuring 23 inches tall, this purifier has a three-stage fan speed ranging from Ultra Quiet to Turbo for express air changes. With the premium HEPA filter capturing dust, allergens, pet dander, mold spores, and bacteria, this unit is ideal for anyone who suffers from allergies or asthma and is looking to have a healthier and cleaner home. There are no complicated dials or controls, just an on/off switch and a three-speed fan control system.

  • Purifier Technology: HEPA Filtration
  • Room Size Suitability: 325 sq. ft.
  • Filter Life: Six to eight months
  • Noise Level: 40dB
  • Monthly Energy Consumption: $19 per year

What We Love

  • This unit comes with a HEPA filter and activated carbon pre-filters
  • With its small size, it can fit on the floor or a table
  • No ozone or ion emissions,
  • The Ultra Quiet mode makes as much noise as a working computer

We Don’t Like This as Much

  • Would benefit from more air intake holes
  • Users report difficulty in obtaining replacement filters
VEVA 8000 Elite Pro Series Air Purifier HEPA Filter & 4 Premium Activated Carbon Pre Filters Removes Allergens, Smoke, Dust, Pet Dander & Odor Complete Tower Air Cleaner Home & Office, 325 Sq Ft.
  • Premium Quality - HEPA filter captures dust and allergens as tiny as .3 microns to remove household dust, pollen, germs, and PM2.5 particles. Ideal for anyone who suffers from allergies and asthma or looking to create a cleaner healthier home.
  • Eliminate Odors - Premium activated carbon pre-filters remove odors from pets, smoking, cooking and more. Use activated charcoal nano-technology to provide fresh clean air throughout a large room.
  • Superior Value - This complete air cleaner system includes a HEPA Filter along with 4 Precut Activated Carbon Pre-Filters. This complete set eliminates the need to cut, clean or vacuum pre-filters and extends the life of the main HEPA filter.
  • Perfect For Home or Office - The VEVA 8000 features an innovative and sleek design that guarantees the air purifier to be the perfect addition to any home or office. It can be changed from a tower air purifier to a table-top air purifier by removing the base. 3-Stage Fan Speed ranges from Ultra Quiet to Turbo. Measures 9" x 8" x 23".
  • Safe for the Whole Family - 100% Ozone free, does not use UV or Ions which produce trace amounts of measurable ozone, a harmful air pollutant. ETL Certified and tested by Nationally Recognized Testing Laboratories to UL Standard. Has an automatic shut-off safety feature when the front panel is removed, making it safe for homes with a baby, cat or dog.

4. LEVOIT LV-H132

LEVOIT Air Purifier for Home, H13 True HEPA Filter for Allergies and Pets, Dust, Mold, and Pollen, Smoke and Odor Eliminator, Cleaner for Bedroom with Optional Night Light, LV-H132, White

The LEVOIT LV-H132 air purifier is a compact unit measuring only 12.6 inches in height and weighs a mere six pounds. The three-stage filtration system consists of a pre-filter for large particles, an H13 True HEPA filter, and high-efficiency activated carbon filters for fresh, clean air. On the low setting, the purifier generates only 25 dB, and the night light has two brightness levels, making it ideal for bedroom use. The controls are simple to use—an on/off button, a night light button, a smart filter change indicator button, and a three-speed fan button. It has a “memory” remembering the programmed settings for the fan speed and night light when it is turned off, resuming these settings when switched back on.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: 129 sq. ft.
  • Filter Life: Six to eight months
  • Noise Level: 25-46dB
  • Monthly Energy Consumption: $10 per year

What We Love

  • Even with the fan set to high the noise is barely noticeable
  • Hold the night light button for five seconds, and all status lights go off
  • Being a compact unit, it is easy to move from room to room
  • It has a modern sleek design with a small footprint

We Don’t Like This as Much

  • It doesn’t have a timer function or an automatic shut-off
  • The intake/suction area is somewhat small at the base of the unit
LEVOIT Air Purifier for Home, H13 True HEPA Filter for Allergies and Pets, Dust, Mold, and Pollen, Smoke and Odor Eliminator, Cleaner for Bedroom with Optional Night Light, LV-H132, White
  • Designed in California. The UVC Light and Anion that other Brands adopt to purify air could produce a kind of air pollutant-Ozone, which is especially harmful for the children, Asthma sufferers and pets. Levoit air purifiers never use these for 100% Ozone free
  • Advanced 3-Stage Filtration System: The Pre-Filter, True HEPA Filter, and High-Efficiency Activated Carbon Filter capture allergens, pet hair, dander, smoke, mold, odor and large dust particles, in addition to removing 99. 97% of airborne contaminants as small as 0. 3 microns
  • Genuine Replacement Filters: Search for B06XD7X81D for Replacement filter. Use genuine Levoit replacement filters to maintain the best performance and to ensure what you're buying is worthy of your investment
  • Adjustable Speeds with Silence: Three speed settings (low, medium, high) to meet different air quality and personal needs. Purify the air with only 25 dB on low level, suitable for restful environment and sleep time
  • High-Efficiency Air Purifier: Circulates room air over 4 times per hour to achieve rapid purification. Unique size and contemporary design make the Levoit air purifier suitable for small or medium-sized rooms, like offices and dorms

5. Vremi Premium 

Vremi Premium True HEPA Air Purifier for Large Rooms - Removes 99.97% of Airborne Particles with H13, Activated Carbon and 3-Stage Filtration - Have A Great Air Day

The Vremi Premium air purifier, featuring three-stage filtration, uses a pre-filter, a True HEPA H13 filter, and an activated carbon filter. It is suitable for any room in your home that is up to 217.5 sq ft in size. This purifier is quiet when operating even at the highest setting and includes a warm night light with adjustable brightness settings. In addition to the normal control buttons, for example, the power, fan speed, and filter reset buttons, it has a sleep mode button, a timer button, and an auto mode button. In auto mode, the unit will automatically adjust the fan speed according to the air quality detected, with four colored lights showing you the quality of the air. The timer can be set for two, four, or eight hours after which it will automatically switch off.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: Up to 300 sq. ft.
  • Filter Life: Six months
  • Noise Level: 28-52dB
  • Monthly Energy Consumption: $20-$30 per year

What We Love

  • Being able to set it on Auto
  • In sleep mode, it runs very quietly and the light dims
  • Has easy to read control buttons
  • Low-cost filter replacements

We Don’t Like This as Much

  • It only has a one-year warranty
  • Comparing the air exchange rate to the noise, 52dB is a bit high
Vremi Premium True HEPA Air Purifier for Large Rooms - Removes 99.97% of Airborne Particles with H13, Activated Carbon and 3-Stage Filtration - Have A Great Air Day
  • Have A Great Air Day: The Vremi premium air purifier utilizes a True HEPA H13 with 99.97% efficiency to purify the surrounding air in your bedroom, living room, home office, and other medium to large size indoor spaces.
  • Powerful 3-Stage Filtration: Includes ultra-fine pre-filter, True HEPA filter and activated carbon filter for enhanced odor reduction. Features a long-lasting filter with a whopping 4320 hour run-time (~180 days). Important: The included filter (located inside the air purifier) ships with a protective plastic sleeve. Please remove the plastic sleeve from the filter before use.
  • Smart Air Quality Monitor and Filter Change Indicator: Features a built-in sensor that measures and displays air quality level (blue, green, orange or red) and automatically adjusts the fan speed (low, medium or high) in real-time. This compact and clean white appliance also includes a helpful reset indicator that flashes to let you know it’s time to replace the HEPA filter.
  • Modern Design with Sleep Friendly Features: Measures 15.5 inches high and 8.7 inches in diameter, and features a 360-degree aerodynamic air intake to maximize purification. Operates more quietly than other air purifiers, with a max noise of 52 dB on its highest setting. Includes warm night light with customizable brightness levels, as well as a built-in timer for added convenience.

6. RIGOGLIOSO GL2103

RIGOGLIOSO Air Purifier for Home with True HEPA Filters,Low Noise Portable Air Purifier with Night Light,Desktop USB Air Cleaner,GL2103(No Adapter)

This desktop air purifier is one of the most compact units available, standing only 7.64 inches tall. It has a three-stage filtration system, including a True HEPA filter, two-speed fan, and is powered by a 5vDC USB cable making it extremely portable. In addition to mechanical filtration, this purifier also comes equipped with an air ionizer. There are no complicated buttons to master to get the unit working. One button on the top controls the power and changes the fan speed. One press and the unit turns on at fast fan speed, and the night light which glows soft purple comes on. After the second press, the fan drops to low speed, entering sleep mode. The night light then dims and the unit will turn off automatically after eight hours. The third press switches it off.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: 70 sq. ft.
  • Filter Life: Three to six months
  • Noise Level: 30dB
  • Monthly Energy Consumption: $10 per year

What We Love

  • The compact design and weighing approx. 1lb
  • “Plug & Play” unit with only one button
  • The air intake is at the bottom and clean air comes out the top
  • The filter is a combination filter with all layers held together

We Don’t Like This as Much

  • The air ionizer will produce small amounts of Ozone
  • The night light cannot be turned off
RIGOGLIOSO Air Purifier for Home with True HEPA Filters,Low Noise Portable Air Purifier with Night Light,Desktop USB Air Cleaner,GL2103(No Adapter)
  • .【Upgraded Silent and powerful Design】360°Purification Performance and Low noise air purifier to make sure you enjoy a high quality sleeping.
  • .【Compact but Powerful】It's small size and modern design make it easy to fit in any small areas or rooms, yet powerful enough to deliver cleaned air 10-30m³/h. No ozone and UV-C light; Noise Level: ≤30dB
  • .【Quick And Easy Operation】One-touch switch equipped with delicate blue LED light, and press the button again to enter into sleep mode to dim light, it will power off 8 hours later automatically. Create the perfect atmosphere in and usable as a soft nightlight.
  • .【SATISFACTORY GIFT】: Negative ions bring high efficiency air filtraction, it also is good for emotion lifting, no ozone. Perfect gift for father, mother, office mates and friends.
  • .【Purchase with Confidence】CE RoHS Certificated, 1-Year Warranty & Lifetime Support.Filters need to replace every 6 months, no washing search "B01MT75FVG" to buy the replacement filter.

7. AeraMax 100 

Fellowes AeraMax Air Purifier, Small, White

The AeraMax 100 boasts a four-stage filtration system and utilizes a front-to-back airflow setup. When switched on the air travels through an activated charcoal filter, a True HEPA filter, “Aerasafe” antimicrobial treatment technology, then lastly PlasmaTrue technology which creates an ionized field intended to rid you of airborne mold, viruses, and bacteria. The purifier is designed with a tower shape, measuring 27.25 inches tall, and a base 7.25 inches wide. Despite its height, it weighs in at a mere 8.5 lbs. The AeraMax 100 starts in auto mode, using an air sensor that monitors the air quality and adjusts the speed of the fan accordingly. You can override the setting with three speeds, low, medium, and high. One other impressive feature is the Aera+ button which puts the fan into turbo mode, increasing the airflow by 15%.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: 200 sq. ft.
  • Filter Life: Up to 12 months
  • Noise Level: 35dB
  • Monthly Energy Consumption: $13 to $18 per year

What We Love

  • The Ionizer can be turned off
  • The indicator lights show the air quality in the room
  • Users report a clean spring water smell when in use
  • The filter light tells you when you need to change the filter

We Don’t Like This as Much

  • The unit emits some popping noises if the ionizer is switched on
  • The LED lights cannot be turned off
Fellowes AeraMax Air Purifier, Small, White
  • 4-stage hospital-type filtration: effectively and quietly purifies air in small rooms 100 - 200 square feet
  • AeraSmart sensor: monitors the air quality and automatically adjusts the fan speed to keep your air purified
  • True HEPA filter with AeraSafe antimicrobial treatment: safely removes 99.97% of viruses, germs, allergens, mold and dust
  • PlasmaTrue Technology: optional setting that utilizes ionization to help safely remove airborne pollutants
  • Aera+ mode: increases air change by 35% for allergy and cold/flu seasons

8. Germ Guardian AC4100

Germ Guardian HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Odors, Quiet 4-in-1 Air Purifier for Desk and Office AC4100

The GermGuardian AC4100 tabletop HEPA air purifier is designed for smaller spaces. It cleans the air by using an activated charcoal pre-filter, a True HEPA filter, and finally treating the air with UV-C technology in order to kill any airborne bacteria or germs. This purifier is also very effective in dealing with viruses like pneumonia, influenza, and bronchitis. It neutralizes odors from smoking, cooking, and pets very effectively. This unit weighs a mere 4.85lbs and is ideal for anyone looking for a lightweight, portable air purifier. The controls are easy to use. There is a power knob, three fan speed settings, and the UV-C light control which can be switched off if not required.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: 120 sq. ft.
  • Filter Life: Up to six months
  • Noise Level: 16 to 40dB
  • Monthly Energy Consumption: $15 per year

What We Love

  • When running the fan at the lowest speed it is virtually silent
  • It is extremely portable and has a six-foot power cord
  • Users report it looks like a small speaker and blends into any room
  • If the UV-C light is a problem for a user, it can be switched off

We Don’t Like This as Much

  • Estimated unit lifespan—five years, but only has a one-year warranty
  • Users report a plastic smell if left running for a long time
Sale
Germ Guardian HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust, Pet Dander, Mold, Odors, Quiet 4-in-1 Air Purifier for Desk and Office AC4100
  • 4 in 1 Desktop Air Purifier: True HEPA air filter reduces up to 99.97% of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as 0.3 microns from the air
  • Compact design: 11 Inch tabletop purifier is perfect for smaller rooms or offices and fits great in small spaces
  • Kills germs: UV C light helps kill airborne viruses such as Influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds
  • Traps allergens: pre filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter
  • Reduces odors: activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more

9. PARTU BS-03

PARTU HEPA Air Purifier - Smoke Air Purifiers for Home with Fragrance Sponge - 100% Ozone Free, Lock Set, Eliminates Smoke, Dust, Pollen, Pet Dander, (Available for California)

The PARTU HEPA Air Purifier comes equipped with a special feature for those who love a calming fragrance in their room—a fragrance sponge. Dampen the sponge, add a few drops of an essential oil of your choice and the fan sends clean, scented air into the room. It has a three-stage filtration filter, with all parts enclosed in one unit, consisting of a pre-filter, HEPA filter, an activated carbon filter. This model is cylindrical, 11.4 inches high, and weighs only 3.3 lbs. The easy-to-use controls are found on the front and consist of buttons for on/off, fan speed, light on/off, change filter reminder, and a child lock. The lock is there to prevent changes to the fan speed or light settings.

  • Purifier Technology: True HEPA Filtration
  • Room Size Suitability: 100 sq. ft.
  • Filter Life: Three to six months
  • Noise Level: 38-59 dB
  • Monthly Energy Consumption: $4 to $6 per year

What We Love

  • This purifier does not use an ionizer, making it 100% ozone-free
  • It is extremely quiet, useful if placing it in a bedroom or nursery
  • Unlike the majority of purifiers, this one has a two-year warranty
  • Very compact and lightweight and can be placed at the bedside

We Don’t Like This as Much

  • The unit does not have an auto mode
  • The three-in-one replacement filter is a bit pricey
Sale
PARTU HEPA Air Purifier - Smoke Air Purifiers for Home with Fragrance Sponge - 100% Ozone Free, Lock Set, Eliminates Smoke, Dust, Pollen, Pet Dander, (Available for California)
  • 【Efficient Three-Stage Filtration System】 PARTU HEPA Air Purifier features a three-stage filtration system. This comprises a pre-filter, a HEPA filter and an activated carbon filter, powerful enough to captures up dust, pollen, smoke, odor, pet dander, filters particles as small as 0.3 microns and air pollution of PM 2.5.
  • 【Air Purifier With Fragrance Sponge】Add a drop of essential oil (Not Included) and some water into sponge below the purifier air outlet, then fragrance will flow with air movements. (Such as Citrus, Honeydew Melon, Musk, Vanilla, Orris or Vetiver)
  • 【Lock Set】It's efficient to avoid error operation caused by pet or child's during their curiosity. (Keep pressing the Lock button for 3 seconds to start avoiding touching mode.) Three fan settings let you control the speed and volume of the Air purifier.
  • 【Black Case And Sleek Design】Compact enough to fit on your desk. Effective area 107sq.ft/ 10m² (bedroom/ office). Noise Level :38-59 dB. 12 Watts; 0.8 A; Better suited to small rooms than large homes. (A voltage converter is needed if you want to use this air purifier beyond the US.)
  • 【Important】 The filter should be replaced every 3-6 months according to the air quality in your area and the usage of the air purifiers for dust to ensure the best results. Air cleaner purifier also comes with a filter replacement reminder. Note: Before operating the air purifier, please remove the plastic bags of the HEPA filter and the charcoal filter.

FAQs about Air Purifiers Under $100.

What is the average filter life for an air purifier?

The life of the filter will vary between different air purifiers and how you use them. Here are a few things to consider:

  • The quality of the indoor air. The dirtier the air, the faster the filter will reach capacity
  • The length of time the purifier is used continually
  • The type of filter the purifier uses

As a general rule of thumb, filter replacement should be done according to the type:

  • True HEPA filters (sealed) – every two to five years
  • HEPA filters (non-sealed) – every 12 to 18 months
  • Carbon filters – three to six months
  • Pre-filters – cleaned once a month, replaced when clogged
  • Permanent filters – cleaned every three months, replaced if damaged

But each purifier will come with instructions showing the expected life of each filter.

Are all air purifiers ozone-free?

Not all air purifiers are ozone-free. Any purifier that has any of the following technologies in its specifications will produce ozone, either as the main air cleaning method or as a by-product:

  • Ozonator. These create ozone continuously and release high concentrations into the air.
  • Ionizers. Although not producing as high levels of ozone as an Ozonator, a small amount of ozone is generated by an ionizer as a by-product.
  • UV-C light. Air purifiers that use ultraviolet light to kill germs, also produce a tiny amount of Ozone as part of the purifying process.

What is the difference between a carbon filter and a HEPA filter?

Carbon filters and HEPA filters both approach the task of improving indoor air quality, but they differ in the job they do. Carbon filters work to filter out odors, smoke, fumes, and other contaminants, and in air purifiers they usually come in the form of activated charcoal/carbon filters that need to be maintained and replaced every few months. A HEPA filter is a pleated mechanical air filter and is designed to remove 99.97% of airborne contaminants that are as small as 0.3 microns in size, such as dust, mold, pollen, bacteria, but they do not trap any gasses or odors.

Which Air Purifier Is Best For You?

To choose the right purifier, you want to think about what you need it for, the size of the space the purifier is cleaning, and of course your budget. Here are a few examples of what type of air purifier you should consider purchasing for some common issues in the home:

  • Anyone who suffers from asthma should choose a purifier with True HEPA filters and avoid any that produce ozone.
  • If you have a lower immune system or are on dialysis the purifier should have pre-filters and a True HEPA filter.
  • Allergy sufferers should select only True HEPA filtration to ensure 100% removal of the allergens.
  • Pet lovers should opt for air purifiers that have strong pre-filtration to avoid breathing in pet hair and dander.

Whatever your requirements are, look carefully at the specifications of the purifier you are considering to see if it tackles the problem effectively. Remember, not all air purifiers are the same.

If you want to look at more specific issues, check out our recommendations of the best air purifiers for pet allergies, cooking odors, and wildfires. 

Last update on 2021-06-24 / Affiliate links / Images from Amazon Product Advertising API