Choosing the Best Air Purifiers Under $100- Which Air Purifier Should I Buy?

Air Purifier For $100?

When you think of air purifiers, what do you imagine? Possibly a piece of skilfully crafted furniture that doesn't require any electricity and also cleans the air? Maybe a device that's packed with water or has an impressively large tank in order to eliminate all impurities from filtered air.

Well, for $100 anyways. These are just two examples of how the idea might come across in your head before you realize how many other options exist out there for filtration systems. Check out this article to see what different types of purifiers exist and which one best suits your needs at home or your office space.


The most basic approach to air purifiers is to use active filtration as well as HEPA (High Efficiency Particulate Air) filtering. The two together will help capture and neutralize airborne particles that are usually invisible to the naked eye.

There are two main ways of active filtration which includes the use of UV light and carbon filters. These help eliminate foul odors as well as plaque that can come from cigarette smoke, cooking smells, pets or laundry drying on clothes lines.

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$100 for an Air Purifier?

If you have $100 too spend on an Air Purifier, there will be some of these features that you cannot have:

Ease of Use:

This is more in line with the idea of how much effort you're going to be putting into it in order to get the desired results. Sometimes, finding the right filter can make a difference between whether or not an air purifier will or will not work for you. Ease of use is all about how easy it is to set up your purifier, finding the right filter and deciding whether or not you can do maintenance on it.


While an air purifier can take a lot of effort to setup, many options will require some level of cleaning to keep the air flowing and ensure that it is working effectively. You'll want to make sure that you're considering all of your options when looking at maintenance requirements as well as the cost of those options. Think about what kind of maintenance will be required on your new purchase.

Power Consumption:

The power consumption for purifiers can range from 0.07 to 1.3 amps per hour depending on whether they are using UV light or carbon filters. For this reason, most air purifiers have adjustable timers and also cordless remote controls so that they don't pull down your power bills.

Air Cleaner (Fan):

The Air Filter should be cleaned every week to prevent excessive dust buildup. Once this happens, it will accumulate and the air can become stale. Additionally, some filters need to be replaced and this takes time. Therefore, it is recommended that the filter should undergo a routine cleaning between three and four times a year.

You can buy new filters online which are usually cheaper than buying new filters through purifier retailers.

Air Purifiers usually have different types of chambers depending on what kind of filtration they offer, what is considered good for your health etc.

Air Filters:

We can usually classify air purifiers into two groups, mechanical and electronic. These are based on the fact that they work in different ways to achieve similar goals. Mechanical air filters use a filter system that has a specific filter that can be washed periodically.

Electronic air filters employ a high voltage transformer that produces ozone. It absorbs airborne contaminants by electrically charging them before they pass through an ozone chamber to be neutralized and removed from the indoor environment.


All purifiers come with a certain number of filters and/or collector trays which needs to be cleaned once in a while. However, some models have more efficient ventilation systems than others.


When operating, it is not uncommon for purifiers to make noise especially in higher air flow situations. However, most models can be programmed electronically with different duration settings which are much quieter than the constant air flow that's usually standard.

Plus, there are passive models available as well that do not use any type of fan or blower for ventilation. All these factors should be considered when looking into what kind of purifier will work best for you in terms of sound level.

Types of Air Purifier For $100

Another thing that will effect your purchase is the type of filter that it has. These can be any of the following:

True HEPA filters

These are by far the best filters with the highest filtration rating. They work by trapping a large number of particles through a very fine mesh, removing them from the air and then replacing them with filtered air.

HEPA filters are by far the best filters that you can get because they trap 99.97% of airborne particles like viruses, bacteria and other hazardous debris. The HEPA filter is an essential component for your air purifier because it works effectively in high traffic areas such as offices, malls or hospitals where air pollution is usually more intense due to their use of computers or other electronic devices that consume air.

Activated carbon /charcoal filters:

These filters are also referred to as filter/screens. They work by absorbing volatile organic compounds from the air like a sponge by physical adsorption. This makes them great for trapping bad odors and removing airborne particles like second-hand smoke, cooking smells, dust and pollen which makes them an effective choice for homes as well as offices or restaurants.


The ionizer is also known as an electrostatic precipitator or ESP. It creates ions in the indoor environment using its built-in high voltage transformer which attracts airborne particles and charges them before neutralizing them in a chamber filled with ozone gas. This helps to maintain the freshness of the indoor air while removing dust, allergens, pollen and other contaminants.

UV Bulbs:

These bulbs are not recommended for residential use because they only work with certain air purifiers. UV bulbs are notorious for killing bacteria but not really a fan for cleaning bad odors out of the air or taking care of most types of allergies.

Most filters only have a single type and this can affect their performance level in different ways. Some offer better filtration while others come with better fan speed settings as well as extra features such as ionizers, UV bulbs or even ozone neutralizers which are incorporated into some models.

Electrostatic air purifiers :

These models are the most popular for their ease of use and substantial airflow. They are also much quieter and operate completely silently.

Electrostatic air purifiers can be setup to work differently based on their settings. Sensitive ions may be produced which is beneficial in disabling viruses but these models can also promote infections as well as asthma. As such, they should be considered before purchasing one especially when the family is susceptible to asthma or respiratory issues due to airborne particles in the air.

Ozone generators:

Ozone generators are not as common as they once used to be because of the negative perception that they are bad for your health and the environment. This is because ozone is a known irritant and can kill beneficial bacteria in the air while being inhaled.

However, it does have some notable benefits with its use in hospital operating rooms as an antiseptic and also for killing airborne microbes such as mold, viruses and bacteria. Thankfully, most current models do not produce ozone anymore but still get rid of microbial pollutants from the air just as effectively.

Type of Pathogen In An Air Purifier For $100

What can an Air Purifier do for you and your family?


Allergens are small particles which do not cause any harm by themselves but are capable of triggering reactions in those who are susceptible to asthma or other respiratory problems. They can be found in dust, mold, pet dander and other types of dead skin which is typically the cause of most allergies.

The most common way to get rid of airborne allergens is through using an air purifier. The fact that they reduce the number of contaminants in the air means that it may be easier for people who have allergies or asthma to breathe easier while reducing their need for medication and steroid shots.


Pollen is a type of microscopic particle that is commonly found outside in nature. The human body has a natural skin barrier to protect itself from infections and other types of allergens but once you go outside, the pollen enters the air. When inhaled, it can cause allergic reactions in those who are sensitive to it and even can cause an asthma attack.

Air purifiers which use an electrostatic precipitator filter are considered to be one of the best ways to eliminate pollen from the air because they create negative ions which strip contaminants such as pollen out of the air making it safer for everyone in the house or office who may be sensitive to them.

Dust mites.

Dust mites may be common indoor allergens that can make you sneeze by themselves but they also are capable of causing a number of respiratory health issues such as asthma attacks and sinusitis. By eliminating dust mites from your air, you may be able to stop them from starting an issue in the first place.

Air purifiers with HEPA filters are the most effective at killing dust mites as well as other small particles such as those produced by pets which make them a popular choice to get rid of allergies in the home or office environment.


Mold is a common source of infectious agents and allergens which are capable of triggering coughs, lung infections and even asthma. Most homes have some kind of mold growing in them and this often has to do with the fact that water damage can make it easier for mold to grow. Mold spores can easily get airborne which makes it important for you to clean your house on a regular basis so that it does not spread.

An air purifier with an activated carbon filter may be a good choice when it comes to getting rid of mold because they capture contaminants by physical adsorption. They also get rid of other airborne particles such as dust mites or pet dander which makes them a popular choice when looking for an air purifier for allergies.


Bacteria are a type of microbe which can be dangerous to your health in some cases but they are not usually harmful unless they make you sick. Bacteria are common indoor allergens and you may have to use a special air purifier to eliminate them because they are able to survive outside of your body.

The good news is that there are some types of air purifiers that can sanitize the air in your home or office making it safe for anyone who may be susceptible to bacteria including children or elderly family members.

HEPA filters and an activated carbon filter is a perfect combination for getting rid of airborne pathogens without having to worry about bacteria breeding in the area where it is located inside the home or office.

Fungal spores

Fungal spores are microscopic particles that come from the soil and water environment but they are capable of growing in the air to become a type of airborne fungus. They exist in the presence of any type of moisture and can be found in the air inside places such as your bathroom.

Fungal spores are commonly found on dust which is why people who are susceptible to fungi may find themselves sneezing frequently due to their atmospheric presence. Various types of air purifiers such as ionizers, UV bulbs and ozone generators are capable of removing indoor allergens as well as dust mites so that you can enjoy a cleaner home environment free from airborne fungi spores.


Smoke is one of the noxious airborne contaminants and is capable of triggering asthma attacks or other respiratory problems in those who are sensitive to it. It is also a common cause of house fires due to its ability to quickly spread from one room to the next.

The good news is that it is possible for you to get rid of airborne pollutants with an air purifier so that you do not have to worry about breathing it in while cooking or smoking. A HEPA filter prevents the smoke particles from passing through your body but most air purifiers can still remove them as they enter your home environment.


Viruses are small agents of disease which are capable of causing a number of health problems such as colds, fevers, sore throats and other types of respiratory issues. They are also commonly found in the environment and can be found in the dust as well as water.

In order for viruses to survive in the air, they must have a source to breathe which means that they are often found indoors. The indoor environment is capable of causing them to spread throughout your home or office so that you may find yourself sick right before you leave for work or school.

In order to get rid of airborne viruses, getting an air purifier is important because it can help to remove airborne contaminants including dust mites, mold spores and viruses from the air.

Pet Odor

Pet Odor is a common off-gassing substance which is released into the air when you have a pet. One of the most well-known sources of pet odor is your cat or dog but other types of pets such as birds and fish can also make odors during their elimination processes.

Pet odors are commonly found in any area where pets have been kept such as your bathroom, kitchen or even your living room after a meal has been cooked. The good news is that you can get rid of these types of airborne contaminants by using an air purifier which contains an activated carbon filter to remove them from the air.


Odors are a common cause of respiratory problems due to their ability to trigger your sinus flare ups or even asthma attacks due to the fact that they are often airborne. Volatile organic compounds are responsible for most odors including perfumes, smoke and other types of strong fragrances.

You may be able to get rid of indoor allergens with an air purifier if you want to eliminate the source of an odor but you should also make sure that you never purchase products which contain the VOCs in the first place.

A HEPA filter will typically remove many types of odors when it is in operation but it is important for you to take preventative measures whenever possible to keep yourself from having problems with airborne toxins such as odors.

Better Overall Health With An Air Purifier For $100

If you are in the market for an air purifier, you should consider getting one that has some kind of HEPA filter in it. The HEPA filter is capable of trapping 99.97% of particles in the air which only leaves a very small particle size that is capable of passing through it.

This means that you will know if your air purifier is a good choice if it uses a HEPA filter and other filters such as an activated carbon filter because they are capable of removing nearly 99% of all contaminants from the air.


Air purifiers are ideal for those that have asthma or allergies due to their ability to get rid of nearly all of the airborne contaminants that are present in your home or office. This includes dust mites, pollen, perfume, odors and other types of pollutants.

If you have been suffering from respiratory problems, you may not know what is causing them but it may be caused by an airborne contaminant such as dust or pet dander. The good news is that it is possible for you to get rid of almost any common indoor contaminant by using an air purifier.

  • 𝐆𝐄𝐍𝐔𝐈𝐍𝐄 𝐑𝐄𝐏𝐋𝐀𝐂𝐄𝐌𝐄𝐍𝐓 𝐅𝐈𝐋𝐓𝐄𝐑𝐒: For the best performance and longest lifespan, use genuine Levoit replacement filters. Use the in-app feature to monitor your filter life. Search B08L971Z4L or “Core 200S-RF”
  • 𝐄𝐅𝐅𝐄𝐂𝐓𝐈𝐕𝐄 𝐏𝐔𝐑𝐈𝐅𝐈𝐂𝐀𝐓𝐈𝐎𝐍: The compact frame and 360° design help the Core 200S / Core 200S-P purify the air wherever you put it, refreshing the air 5x per hour in rooms as large as 183 ft² / 17 m². The optimal air cleaning performance can only be delivered by powerful motors installed on products over 6 pounds, Operating Conditions Temperature: 14°–104°F / -10°–40°C
  • 𝐈𝐌𝐏𝐑𝐎𝐕𝐄𝐃 𝐅𝐈𝐋𝐓𝐑𝐀𝐓𝐈𝐎𝐍: While the ultra-fine Nylon Pre-Filter and High-Efficiency Activated Carbon Filter capture large particles and absorb odors and fumes, the efficient filter of the 3-in-1 filter removes at least 99.97% of dust, pollen, and any airborne particles with a size of 0.3 microns (µm)
  • 𝐐𝐔𝐈𝐄𝐓 𝐎𝐏𝐄𝐑𝐀𝐓𝐈𝐎𝐍: With noise levels as low as 24dB, the Core 200S/Core 200S-P cleans your air without keeping you up at night. For a completely uninterrupted sleep, turn off all lights with the Display Off button
  • 𝐀𝐂𝐂𝐄𝐒𝐒 𝐀𝐍𝐘𝐖𝐇𝐄𝐑𝐄: With the VeSync app, you can control your smart air purifier from anywhere. Adjust settings while you’re in the other room, at the office, or out walking the dog
  • 𝐕𝐎𝐈𝐂𝐄 𝐂𝐎𝐍𝐓𝐑𝐎𝐋: The Core 200S / Core 200S-P is compatible with Amazon Alexa and Google Assistant, so you can use your air purifier without having to lift a finger
  • 【Air Purifier with H13 True HEPA Air Filter】The 3-in-1 Efficient Filter removes up to 99.97% of all particles as small as 0.3 microns in diameter, when the nylon pre-filter and activated carbon layer filter out pollen & smoke & odors, to keep air clean around you and your family 【replacement filter available to purchase – search for "TOPPIN H13 hepa air filter"】
  • 【Silent Fan Operation】Runs at incredibly low noise levels (<21dB at 1-Low fan level, 30dB at 2-Medium, 45dB at 3-High), for ultra-quiet purification that you can sleep or read next to
  • [Compact Design Yet Powerful] With CADR rating of 170m³/h, and compact as 6.7 x 6.7 x 13.0 in, this air purifier circulates air quickly in a room up to 195ft² (20m²) and removes a wide range of contaminants, including pollen, dust & pollutants, pet dander & hair, cooking & smoke odors in your bedroom, study, living room, or kitchen
  • 【360° All-Round Filtration】Covering an area of up to 15-20m² / 160-215 sq. ft, perfect for quickly replacing the air in your bedroom, study, living room, or kitchen with cleaner, healthier air
  • 【Filter Change Indicator】Automatically detects and reminds you to change the filter when the service time is less than 10% remained (indicator in red); after replacement, press and hold the Filter button 5s until a beep is heard to reset (replacement filter available to purchase – search for "TOPPIN H13 hepa air filter")
  • 【Efficient Air Purifier】 Equipped with Japanese Toray 3-in-1 H13 true HEPA filter, 360°air intake and outlet, Greenote HEPA air purifier can capture 99.97% ultrafine particles, PM2.5, pet dander, cooking smell, refreshes the air 5x per hour in rooms as large as 430ft²/40m².
  • 【Whisper-Quiet Air Purifier】 Adopting Nidec's advanced turbocharging technology, Greenote air purifier for home is only 22dB in sleep mode, doesn't affect your work, study or sleep. People who are lightly sleeping can fall asleep restfully.
  • 【Multi-functional Air Purifier】Greenote air purifier for home with 4-level speed adjustments(Sleep/Low/Med/High), 3 OFF timer options(2/4/8 hours) and indicator of filter replacement, help you use it in any desired situations.
  • 【Energy-Saving Air Purifier】 The power consumption is only 0.24Kwh even if this air purifier runs in the strongest mode 24 hours, only $0.21 per day. Sleek and Modern design suitable for any home style.
  • 【Safe and certified Air Purifier】Complies with California air resources board (CARB) for indoor cleaning devices. Also FCC certified, ETL listed. And you can search "B0943P26G2" on Amazon to get a Greenote replacement filter.

Other Questions

Do we need air purifier at home?

Air purifiers are available in all sizes so that you can use them at home and even at the office. The one thing that we all have to remember is that you will only get the best results from them if they are located in the area where you spend the most time.

For example, if you spend a lot of time cooking or smoking when you are in your kitchen, it may be best for you to get a small air filter unit to place on your countertop. This will help to eliminate odors which may be entering the air from your meals while also getting rid of any airborne contaminants which are present in the room.

Should I leave my air purifier on all the time?

The best results from an air purifier is achieved when it is turned on for thirty minutes every day. You should keep this in mind when you are choosing a unit to purchase as well as when you are using it.

While some of the units will allow you to switch between different modes, the ones that have the best HEPA filtration will require that they be left on all of the time so that they can capture the contaminants which have been released into the air.

Are Air Purifiers Safe?

Air purifiers are safe for you to use because they contain HEPA filters which are capable of trapping nearly all of the contaminants in the air. The HEPA filter that is found in your air purifier is actually safer for you to breathe than most of the outside air which is found throughout your home or office.

Should I buy only an air purifier?

The best advice that you can get is to purchase air purifiers and air filtration units as well as accessories such as filters. The reason for this is that they can be used for so many different things in your home or office including removing odors, getting rid of contaminants such as pet dander and dust mites and even removing mold spores.

The other benefit is that they can help to improve the quality of your indoor air which will in turn increase your overall health.

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Nick Le Page

 An air purifier is a device designed to remove dust, pollen, smoke, soot, mold spores, smog, and other airborne pollutants from the air.

If you want to keep your home clean and free of contaminants—and save money on heating and air conditioning bills—quality air purifiers are a powerful first step.

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