Best Cheap Air Purifier Under 100 Dollars

We’ve made it easy and affordable to eliminate smoke and pet odors in your home with our handy guide to finding the best air purifier under $100.

When you’re shopping for air purifier, there’s really no reason you should have to pay a lot of money for a model that’s effective and durable. In fact, it’s completely possible to pick up a high quality air purifier under $100 without sacrificing performance or user-friendliness, as long as you know what to look for. That’s why we’ve created this profile of just what the best air purifiers under 100 dollars have to offer. That way, you can simply choose the model that best fits your needs without having to worry about breaking your budget.

Fortunately, the market for air purifiers that come in at under $100 has exploded in recent years, making it much easier than ever before to find a model that can eliminate virtually all of the odors and impurities found in the average home. Thanks to modern technology and advances in the production of air purifiers, the days of poor interior air quality can soon be nothing more than a distant memory. Read on for a complete breakdown of the air purifiers under 100 dollars and start breathing cleaner air sooner than you ever would have thought possible.

Top 7 Best Air Purifiers Under $100

Holmes HEPA Type Desktop Air Purifier, 3 Speeds plus Optional Ionizer, HAP242-NUC

Best AIr Purifier Under 100 - Holmes HAP242-NUC

The Holmes Type Desktop Air Purifier will significantly improve the quality of the air in your home and provide freshness to your house. The HEPA filter can remove virtually all airborne particles from the air, up to 99 percent. Dust can be as small as 2 microns in size. In addition the plastic encasing is covered with a Microban protective layer to eliminate microbial growth like bacteria, mildew and mold. The carbon filtration system will eliminate up to 44% of unpleasant odors in the room. The optional ionizer will bind with smoke, dust and pollen which will make it easier for the filter to capture airborne elements.

The Holmes HAP242-NUC can be used in rooms up to ten by eleven feet in size, that amounts to 109 square feet and Smoke CADR 70. A dual positioning system allows you to place the unit horizontally and vertically so it will fit in most homes. You can choose from three different settings. The lower speed setting will keep the air in your home fresh with the minimum of sound when you are at home. If you go out feel free to use the second or third speed for a maximum purification and complete freshness when you get back home.


  • Completely silent
  • Washable pre-filters to trap larger particles
  • Dual positioning system


  • Not suitable for large areas

GermGuardian AC4100 3-in-1 Air Purifier with HEPA Filter

Best Air Purifier Under 100 Dollars - GermGuardian AC4100

The GermGuardian AC4100 3-in-1 Air Purifier is a multifunctional appliance that any person with or without allergies can get for their home. It does not just capture allergens, dust, dander, and other tiny particles with its HEPA Filter, but it also sanitizes your place with its UV-C sanitizer that kills germs, bacteria, viruses and mold spores with UV light; it also has an on/off option whenever you need it. Its air purifiers with charcoal filters reduces the usual smell of smoke, pets and cooking which leaves your air feeling fresh as well as clean. This unit has a filter reminder that notifies you when you need to clean or change your filters so you don’t have to check it often. It also cleans the air of a 200 square feet maximum area.

Besides removing up to 99% of impurities in the air, this simple looking yet compact air purifier is flexible and you can put it in any corner or table top in the room. It is also light weight for easier transport or transfer. It has a 3-speed control that runs ultra-quiet on the lowest setting and its filters can be replaced every 6-8 months depending on use. If you are a family person, then this is a good product for the kids to reduce allergy triggers or asthma attack. If you are a student in a dorm or an employee in an office who wants cleaner air, then this is a great product, especially for closed spaces


  • Has a compact size for mobility
  • Easy to replace filters
  • Efficient and powerful operation


  • Not recommended for larger areas

OION B-1000 Permanent Filter Ionic Air Purifier Pro Ionizer with UV-C Sanitizer

Best Cheap Air Purifier - OION B-1000

For people who are looking at getting an air purifier and are also energy conscious, then the OION B-1000 Permanent Filter Ionic Air Purifier Pro Ionizer with UV-C Sanitizer is one of the best bets for you. It only consumes 7.5 watts so you don’t need to worry about the electricity it consumes while keeping your air clean and fresh. Its Electrostatic Ionizer Purification reduces airborne pollutants as small as 1 micron which assures you that it removes allergens, pollen, mold, pet dander, dust and other particles which can be very helpful for people with allergies. Its carbon filtration and ozone power reduces bad smells, freshens the air and absorbs volatile airborne pollutants. Moreover, its UVGI technology kills germs, viruses, bacteria and other disease causing microorganism, so you are ensured of a clean and healthy environment with this purifier.

Besides being energy efficient, its permanent main filter is also efficient since you only need to replace it every now and then, plus cleaning can be easy for this unit. This air purifier unit features a whisper quiet purification fan and nightlight which cleans and sanitizes the air around by silently drawing in the air for purification, while illuminating your room during the night. It is compact and portable which makes it easier to move around and it fits any table top, corner, shelf or anywhere it’s needed. You can also have the option to put it on high or low level settings as it cleans a maximum 1000 square feet room area.


  • Quiet operation
  • Low energy consumption
  • The nightlight comes in handy but can be turned off if not needed


  • The ozone produced is not good for people with respiratory problems
  • Cleans less than the area mentioned

Hamilton Beach TrueAir Allergen-Reducing Ultra Quiet Air Cleaner Purifier with Permanent HEPA Filter

Cheap Air Purifier Under 100 - Hamilton Beach TrueAir Allergen

If you are looking for a purifier that is light weight and compact, which also brings back the freshness of the air in your room, then the Hamilton Beach True Air 04532GM Room Odor Eliminator is a perfect find for you. It boasts three carbon filters that trap and neutralize bad smells or odors so you can have a clean and fresh environment that can last up to three months. Its fan system also pulls in bad smells through the filters, as well as capturing the dust you see in the air, then sends back fresh air into the room or area it is cleaning. You can also say goodbye to stuffy nose and runny eyes with this unit since it helps eliminate allergy causing particles in the air.

Whenever you need a quick breath of fresh air, you can just switch this unit on and you are good to go. The Hamilton Beach True Air is easy to control with its 2-speed switch that gives you the option of a low setting for a quiet and continuous clean, or a high setting for a powerful and thorough cleaning process. You can also use and move it around wherever it’s needed since it’s light weight and portable. It keeps a maximum 100 square foot room fresh for up to three months so it is ideal for small to medium sized rooms. This compact purifier is energy efficient as well since it uses less energy than a 15-watt light bulb. This nice looking air purifier can be a top contender since it’s easy to set up and maintain. Just plug it in and don’t forget to change its filter.


  • It is compact and light weight
  • Has an ultra-quiet performance on all speed levels
  • The filter replacement reminder is very helpful


  • Require to replace filters

A2Z Ozone Aqua 6 Multi Purpose Ozone Generator

Cheap Air Purifier Under 100 Dollars - A2Z Ozone Aqua 6 Multi Purpose

The A2Z Ozone Aqua 6 Multi-Purpose Ozone generator boasts a functional timer with 15 settings for different applications or many functions. Ozone generators have become popular these days since ozone is one of the world’s most powerful sterilizing agents, and the Aqua 6 Ozonator is perfect for you as it is one of the top listers for ozone generators. From home, air and water treatment to sanitizing beddings and closets, from dental hygiene disinfectants to washing fruits and vegetables to prolong their shelf life, this unit has plenty of uses, and can even clean a maximum area of 300 square feet by ozonizing it.

This ozonator has two 36-inch polyurethane tubes for ozonating, one fine white diffuser stone and one coarse grey diffuser stone. It is lightweight, compact and portable so as to be flexible with its uses that can be anything and anywhere: for air and water treatment, sanitization of beddings and dust mites, mold and mildew odor remover, fish tank cleaner that kills bacteria and parasites, kitchen odor remover, and many more. It is also durable with four felt pads to prevent scratching on the unit wherever you use it. It has two openings at the back for mounting when you want it put up on the wall. It is a helpful tool that is a must have in either home or office as it not only cleans the air and environment, but sanitizes your water, prolongs shelf life of food, and other uses that can be helpful in the household.


  • It is portable and can be wall mounted
  • Has a functional timer with 15 uses
  • It can purify spaces up to 300 square feet


  • Mishandling of unit can lead to ozone release into the air

O3-Pure - Plug Adjustable Ionic Air Purifier

Best Cheap Air Purifier Under 100 - O3-Pure

The O3-Pure – Plug Adjustable Ionic Air Purifier is one of the most powerful ozone air purifiers around. Setting size aside, this compact unit works accurately in cleaning the air and is ideal for small spaces or rooms of up to 150 square feet in homes or offices. It is also very portable because of its size and plug-in feature so you can easily move it around and it’s travel ready. Even though it’s small, this unit is one of the top of the line plug-in air purifiers made in the US which boasts a hand oiled fan system, so there is no need to clean or replace any filters. It is proven to deodorize smelly shoes, smoke, pet odors, and even perfumes, leaving your room fresh and odor free.

It is also chemical free so you can be sure that there are no contaminants or leaks. That is why it is CE certified and is in compliance with the Restriction of Hazardous Substance. This unit also reduces allergy symptoms by dealing with triggers like dust, pollen and other allergy type particles. It is easy to operate with 2 speed settings that you can choose from: low for a quiet but continuous air cleaning, or high for maximum performance. Overall, this plug-in air purifier packs a punch and is a must have if the only function you need is to eliminate the smell, but, since it is filterless, it cannot thoroughly clean the air around you.


  • Portable and compact design
  • Eliminates all types of smells and odors
  • CE and RoHS (Restriction of Hazardous Substance) certified


  • Can be a bit noisy for noise sensitive people

Gideon Electronic Plug-in Air Purifier with UV Air Sanitizer

Air Purifier Under 100 - Gideon Electronic Plug-in Air Purifier

The Gideon Electronic Plug-in Air Purifier with UV Air Sanitizer, Ion Purifier and Fan is a must have if you need an all-around and reliable air purifier that works 24-7 but is still energy efficient. It contains two stainless steel permanent filters that create a clean and healthy environment in the room or area, plus the filters are easy to clean by just wiping the blades. They’ll never need replacement which gives you the convenience and assurance of a long lasting air purifier. It also has a UV Air Sanitizer that kills over 98% of airborne germs and bacteria, and its Ion Purifier removes all the bad smells in the area.

Besides removing viruses, molds, dust mites, pollen, pet and smoke odors from the air, this compact and flexible air purifier can clean an area of up to 150 square feet anywhere, anytime, since it can work all day every day and is easy to carry and transfer to any area where it’s needed. The Gideon Electronic Plug-in Air Purifier only consumes 8 watts of energy so it is efficient, even if it works 24-7, and it features a whisper-quiet technology fan system so it circulates the air in total silence. Overall, you can have a clean, fresh and allergy free environment all throughout the day with this device. It has permanent filters which can save you from changing filters and saves you energy as it works quietly in the background.


  • Plug in efficiency
  • Whisper-quiet fan makes purifier suited to any room
  • It can run 24-7


  • A bit heavy for a plug it so it weighs down a bit from the socket
  • Carbon pre-filter utilizes light odors only
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