Top 8 Best Small Room Air Purifiers That Are Worth Your Money – 2020

Fun Fact:

According to APA (stand for the American Psychological Association), indoor air quality is averagely 5 times more polluted than outside air.

And that might cause sleep problems on 60% of American adults, from a couple of nights to almost every night a week.

Improving your interior air quality is essential! Start from the small specific space in your house where you’ll spend most of the time in. If you’re also in need of some good reference, here are top 8 best small room air purifiers on the market:

  •         LEVOIT LV-H132 – Best overall
  •         LEVOIT LV-H126 – Budget-friendly
  •         Germ Guardian AC4825 – Best for reducing common odors
  •         Germ Guardian AC4100 – Best for allergies
  •         KOIOS Air Purifier – Best for dust removal
  •         Pure Enrichment Air Purifier – Best for tiny room
  •         MOOKA Air Purifier – Best desktop purifier
  •         RENPHO Air Purifier – Easy-to-use

LEVOIT LV-H132 – Best overall

LEVOIT H13 True HEPA Filter Air Purifiers for Allergies and Pets, Smokers, Smoke, Dust, Mold, and Pollen, Cleaner for Bedroom, Large Room with Optional Night Light, LV-H132

  • Operate silently at 25 dB so as not to disturb your activities
  • Auto remind you when to change its filters
  • 100% Ozone free
  • Two nightlight settings to let users see in the evening or sleep with no disruption


  • Too sensitive buttons
  • When operating at Speed 3, it’s a bit noisy

Ultra-silent operation (at 25dB), two night light options, and 3-Stage Filtration System mean that the LEVOIT LV-H132 is a powerful but small workhorse to perfectly suit for bedrooms or kids’ room.

It’s proven to remove 99.97% of airborne particles that are 0.3 microns and larger, including mold, odor, large dust molecules, pet dander and hair, allergens, and smoke.

The product meets many reliable certifications, such as the ETL listed, CARB Certified, and FCC certified. It’s also known for the 100% Ozone-free performance and Room Size for 4 ACH to utterly safe for asthma sufferers or children.

While giving a competitive price, there are many smart functions about this air purifier. The worthiest-mentioning is Filter Change Reminder, which reminds you to periodically change its filter for the highest efficiency.

Product Specs

Efficiency99.97%. Filters particles as small as 0.3 microns
Room coverage85 square feet
Noise level25 dB
Highlight FeaturesAdvanced 3-Stage Filtration System, Ultra-Silent Operation, Smart Filter Change Reminder

With so many useful, smart features equipped in a compact device, the LEVOIT LV-H132 deserves to be the best overall air purifier in our list.

LEVOIT LV-H126 – Budget-friendly

LEVOIT Air Purifier for Bedroom, HEPA Filter for Smoke in Home Office, Cleaner for Allergies and Pets Dander Dust Pollen, 100% Ozone Free, Odor Eliminator, LV-H126(Available for California)

  • 3 fan speed settings to customize to your preference
  • It can operate in large areas – 161 ft².
  • Allow users to shut the lights off when sleeping at night


  • Not suitable for people who sensitive to white noise

As crafted from the same manufacturer, the LEVOIT LV-H126 comes in several similarities to its previous sibling. Such as the 1-year warranty, the 3-Stage Filtration System, Filter Reminder and the 100% ozone free performance – all the signature features of LEVOIT.

Regardless, it’s designed to fit larger treatment space while still keeping a sleek and compact body that can be placed anywhere with no bulk.

The product also delivers 3 fan speed settings from Low to High with the maximum area coverage is 161 square feet. And there is a smart feature called “Sleep Soundlessly with Zero Light Pollution” that you shut off entirely the light to sleep better at night.

Out of such wonderful specs, let guess the price! Under $60.  What else to ask?

Product Specs

Efficiency99. 9%. Filters particles as small as 0. 3 microns
Room coverage161 square feet
Noise level32 dB
Highlight FeaturesFilter Reminder Wheel, Affordable Levoit Replacement Filters, The effective range covers up to 161 ft² / 15 m²

For homeowners who have a tight budget, we believe the LEVOIT LV-H126 is the best bet.

Germ Guardian AC4825 – Best for reducing common odors

Germ Guardian AC4825
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

  • Proofed to remove multiple unwanted odors
  • Can decrease volatile organic compounds
  • Efficiently kill rhinovirus, staph, influenza, and other airborne viruses


  • Don’t have filter reminder, you have to remember it by yourself
  • The main filtration is expensive to replace

Germ Guardian AC4825 is an advised odor air purifier if that’s also what you are looking for.

It highlights an activated charcoal filter (aside from the HEPA) to efficiently eliminate unwanted cooking fumes, smoke, and pets. This is proofed for its ability through CARB-compliant, AHAM certification, and Energy Star Certification.

While offering 3 fan speed settings, the air purifier has an optional KILLS GERMS UV C light that not only decreases volatile organic compounds but also kills rhinovirus, staph, influenza, and other airborne viruses.

At whichever mode, it works silently – which is something really hard to get in other models with 167 ft² range coverage.

Product Specs

Efficiency99.97%, filters particles as small as .3 microns
Room coverage167 square feet
Noise level40 – 55 dB
Highlight FeaturesBest used for rooms up to 167 Sq. feet. Filters and circulates room air over 4x per hour.

If you are looking for the best air purifier to reduce common odors, the Germ Guardian AC4825 is what you’re after.

Germ Guardian AC4100 – Best for allergies

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

  • Can trap multiple allergen particles
  • Lightweight and compact
  • Can sufficiently soothe stuffy nose, allergies, and itchy eyes symptom


  • Quite loud

The Germ Guardian AC4100 operates as a 3-in-1 device – Odor deduction, germ killers, and especially, allergen trapper which is also the biggest selling point.

It’s actually a pre-filter trap but not similar to other 3-Stage Filtration Systems. In this case, this pre-filter trap not only works to extend the HEPA main filtration but also traps large particles, pet hair, dust, and other allergen particles.

This feature gets 66 to 76 of CADR Rating and its range coverage is 78 square feet – good for bedrooms, offices, or dorm rooms.

Product Specs

Efficiency99.97%, filters particles as small as .3 microns
Room coverage78 square feet
Noise level47 – 61 dB, due to fan speeds
Highlight Features3 IN 1 DESKTOP AIR PURIFIER, small rooms up to 78 square feet, UV-C Light

Highlight a special pre-filter trap, the Germ Guardian AC4100 is an ideal option to remove average daily life stink.

KOIOS Air Purifier – Best for dust removal

KOIOS Air Purifier
KOIOS Air Purifier, Indoor Air Cleaner with 3-in-1 True HEPA Filter for Home and Office, Odor Allergies Eliminator for Smoke, Dust, Pets, 3 Stage Filtration, Night Light

  • Consume less power to save more electricity when running it 24/7
  • Minimal construction -> easy to use
  • Can be placed anywhere in the room


  • Can’t turn off the light

For people who don’t prefer to place an air purifier in the center of their room even though it’s advised doing so, the KOIOS Air Purifier can satisfy that demand without decreasing its performance.

A big thank you to the 360-degree air purification design that can intake and discharge the air anywhere around the room, as long as it is 6” away from the wall.

The minimal construction is also a big bonus for low-tech users. There is only one button to turn on/off the device as well as control its fan speed.

Meanwhile, it consumes very low power compared to other similar air purifiers while running at much lower noise. What truly soothes our mind when choosing their products is the 3-year warranty, 30-day money-back guarantee, and 24/7 Live Chat.

Product Specs

Efficiency99.97%, filters particles as small as .3 microns
Room coverage60 square feet
Noise level57 dB
Highlight Features3 Stage Filtration system with Pre-filter, 360-degree air intake, and discharge

For general dust removal, the KOIOS Air Purifier with emphasis on position freedom, 3-stage filtration, and minimal design, is the best choice ever.

Pure Enrichment Air Purifier – Best for a tiny room

Pure Enrichment Air Purifier
Pure Enrichment PureZone 3-in-1 Air Purifier - True HEPA Filter & UV-C Sanitizer Cleans Air, Helps Alleviate Allergies, Removes Pet Hair, Smoke & More - For Home, Office & Bedroom

  • An auto timer to shut the air purifier after running in a certain amount of time
  • Have photocatalyst filter to reduce air pollutants, good for asthma and allergy sufferers


  • When running at Sleep Mode, the device automatically sets the speed to low and some people don’t like this
  • Doesn’t have lit buttons

Some people love running their air purifiers 24/7 while others just need it to work for a certain amount of time. And the Pure Enrichment Air Purifier can meet that specific needs due to its optional automatic timer with three settings to choose from – 2, 4, or 8 hours.

It’s accordingly a good idea to improve indoor air quality in basements, nurseries, living rooms, and bedrooms.

While featuring a 3-stage air filtration like other counterparts in this list, the Pure Enrichment highlights an optional photocatalyst filter. This addition is proven to destroy allergens, reduce cold and flu symptoms, and improve your night sleep.

The most astounding specification is its range coverage – 200 square feet, which is too contrast to its modest silhouette. Combining with the simple, white color, the device is versatile enough to match any space.

Product Specs

Room coverage200 sq. ft.
Noise level30 dB
Highlight FeaturesEASY & EFFICIENT OPERATION, Filter Reset Indicator, UV-C light + photocatalyst filter

With 200 square-foot area coverage, the Pure Enrichment Air Purifier makes it the most versatile air purifier in this list to fit any small to larger space.

MOOKA Air Purifier – Best desktop purifier

MOOKA Air Purifier
MOOKA Air Purifier for Home, 3-in-1 True HEPA Filter Air Cleaner for Bedroom and Office, Odor Eliminator for Allergies and Pets, Smoke, Dust, Mold, 3D Filtration, Night Light, Available for California

  • A money-saver to run all day
  • Tiny design and extremely quiet operation to fit in different narrow spaces
  • The company gives free filter replacement if registered


  • Light can’t be turned off at night

Sizing of 7.5 x 6.9 x 6.9 inches and weighing just 3 pounds, this MOOKA air purifier is a perfect smaller version for offices, bedrooms, and kids’ rooms.

It features a 3-stage filtration system including a pre-filter, a TRUE HEPA filter, and an activated carbon filter.

Combining with the 360-degree construction, this device can purify allergen particles within 0.3 to 2.5 microns and give a total change to your indoor air quality after 3 or 5 hours of work. Rest assured, that wonderful performance is certificated by California Air Resources Board.

What draws our attention to this desktop purifier is its super-low energy consumption – under 0.002 power unit, meaning it can save dozens of dollars each month if continuously used 24/7.

Product Specs

Efficiency99.97%, filters particles as small as .3 microns
Room coverage300 square feet
Noise level<35dB
Highlight FeaturesEASY OPERATE, SIMPLE DESIGN, 360-degree air intake and discharge, affordable to run all day and extremely quiet.

Out of a plethora of air purifiers, the MOOKA with an emphasis on powerful but small powerhouse is the best desktop model to choose from.

RENPHO Air Purifier – Easy-to-use

RENPHO Air Purifier
RENPHO Air Purifier for Home Allergies and Pets, Air Purifier with H13 True HEPA Filter, Quiet Air Purifier for Bedroom Kitchen Office, Eliminate 99.97% Odors Smoke Mold Pollen Dust Pet Daner, Ozone Free

  • Affordable filter replacement
  • 4 power settings to adjust to your desired needs
  • Consume super less power to save money in the long term


  • Not suited for people who are sensitive to white noise

The RENPHO Air Purifier is the easiest to use that we’ve ever tried.

You can find all functional buttons on the front face of this purifier, including one On/Off button, 4 power settings, and light/filter reset. They are sensitive and responsive enough to click on but not overly to cause annoyance as we’ve mentioned in the LEVOIT LV-H132.

A special thing about this unit is its leveraged 4 power settings: High, Medium, Low, and an optional Sleep Mode, which runs hardly noisy.

We also found this RENPHO Air Purifier was superbly power efficiency. It’s proofed subjectively through the electricity consumption that we’ve measured: From the highest to the lowest setting, the indicator is orderly 39W, 31W, 28W, and 21W.

This is relatively low compared to the average HEPA air purifiers (50W to 200W) or computers (365W) or lamps (60W).

With 4 power settings and simple construction, the RENPHO Air Purifier is our highest recommendation for an easy-to-use model.

Product Specs

Efficiency99.97%, filters particles as small as .3 microns
Room coverage60-103 sq. ft.
Noise level37 dB
Highlight FeaturesSimply press the power button to adjust the fan speed to your preference, Intertek ETL-Certified, CARB (California Air Resources Board)

How to choose a good air purifier for a small room?

Best Small Room Air Purifiers That Are Worth Your Money


When it comes to choosing the filtration of an air purifier, HEPA filters are the most popular.

It stands for High-Efficiency Particulate Air filters, known as the most effective models nowadays. They are proved to remove up to 99,97% of airborne allergens in the air, including the tiniest size – 0.3 microns.

That means this type of filtration can filter pet dander, ragweed, mold spores, dust mites, dust, and pollen – something that the traditional models hardly do.

Determine your indoor air quality needs

I mean “Do you have any specific needs?” Such as:

  •         Chemical sensitivities
  •         Pet allergy sufferers
  •         Smoke removal
  •         Asthma
  •         Allergies

In these cases, find an air purifier that is designed specifically for such symptoms or health problems.

For instance, there are asthma air purifiers for asthma sufferers. These models are specifically added a chemical and odor filtration to prevent users from being triggered by such substances.

Otherwise, a HEPA air purifier is enough for general air quality improvement.


The size of your air purifier depends on the square footage of the treatment space that you intend to use it in.

Square footage (of a room) = width x length (measured in feet)

After getting the exact number, consider which air purifiers that match their square footage coverage area to it. You can find this indicator on the product’s specifications (either under Sylvane product pages or “Manufacturer-Suggested Room Size” section).


For asthma or allergy sufferers, look for an air purifier with “Room Size for 4 ACH” specification, meaning the tool will make 4 times of air change every hour.

This model will assure you two things:

  •         Microscopic symptom-triggering allergens are kept filtering thoroughly while the air purifier is working
  •         Air is always clean during this time

And that is equivalent to you breathing more easily.

Who makes the best air purifiers for a small room?

Best Small Room Air Purifiers That Are Worth Your Money


Despite a newcomer in this industry (since 2017), LEVOIT is one of our most favorite brands because of their dedication and reliability. They have won many awards, the worthiest-mentioning is the “Oscar of Industry” Reddot Award.

And what makes them outstanding is the cyclone technology and 360° filter design to give 40% higher efficiency.

Germ Technologies

As its name defines, Germ Technologies lead the word’s indoor air quality improving tools through their innovative technology applications that are known for safety and efficiency.

They’ve also won multiple precious awards, like the Leading Edge, EY Entrepreneur of the Year (2016), and 100 Weatherhead (2016).


Though KOIOS started as a company specialized in world-leading robot vacuum cleaners, they’ve got a good foundation in indoor air quality improvement to make a switch.

Air purifiers from KOIOS are rather practical and focus on dust removal.

Pure Enrichments

The brand was founded in 2010, in California, beginning their business with a unique air purifier and up to now, there have been various models specialized in specific needs. Furthermore, their products are always backed by good warranties.


Established in 2012, MOOKA is another senior brand in this field.

Their lines are much about indoor air quality improvements (such as humidifiers, air purifiers, essential oils, and so on) but stand out for the vast size offers.


The last recommendation in this list is RENPHO – a 2015-founded, California-based company that is popular for its leading innovation air purifiers.

While following the international quality standards, their products are designed with customers in mind to release the world-best easy-to-use models.


Best Small Room Air Purifiers That Are Worth Your Money

Will a small air purifier work in a large room?

A small air purifier literally can work in a large room but the indoor air quality improvement performance is NOT efficient. It will need more time to purify the room and work harder, meaning of its shortened lifetime for nothing.

Where is the best place to put an air purifier in a room?

The most ideal place for an air purifier in the room’s center with no furniture or objects obstructing air from reaching it. If this is impossible for you, considering choosing a 360-degree filtration and place it 6” away from the wall.

Should I sleep with the air purifier on?

It’s advised to sleep with an air purifier on, especially if it’s placed within 6’ to 10’ from the head of your bed while pointing its directional registers towards you.

In this way, you’re assured to take advantage of all benefits from the machine and breathing only the cleanest air.

Can air purifiers make you sick?

Designed as a machine to clean the air, air purifiers apparently don’t make you sick. You might hear of some cases in which users get throat irritation symptoms while utilizing it but that’s a common issue caused by some ion.

It doesn’t make a sore throat or cough.

How long does it take for an air purifier to clean a room?

If the air purifiers feature a suitable capacity to cover the room size, it will take around 30 minutes to 2 hours to complete its tasks. Remember that its performance depends on three things:

  •         The air purifier’s purifying coverage
  •         Room size
  •         Fan speed

Can air purifiers cause dry air?

No, they can’t.

Air purifiers are literally an ionizer or fan device operating to clean the air, not change its humidity level.


Cleaning the indoor air is something that any homeowner should consider as it is proven to deliver better night sleep, respiratory issue reduction and healthier life to the users.

Regardless if you’re finding a small room air purifier for bedroom, kids’ room or any smaller space in the house, the 8 options above are worth a try. Thanks for reading!

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