The Honeywell HEPA-Type Tabletop Air Purifier is a small, compact, and affordable air purification system that is able to tackle small spaces with ease. Despite the small size that is easily stored on a table, in a closet or on a shelf, this purifier removes 99% of pollutants, dirt, dust, and other allergens from the air in a room or small space. The purifier has three fan settings to adjust the purification speed, but the system runs very quiet regardless of the setting. The filter is easily swapped out for a clean one with a replacement also found at a low cost.

Customers say the small size of this filter works well for apartments or bedrooms. Many say they have noticed a significant drop in allergic reactions after installing this system, and have also noticed much cleaner air throughout the household. Others say the purifier is quiet, so it does not bother those who prefer a silent night's sleep.

Some say the filtration system is too small for a larger apartment or house. 

The Blueair Classic 203 Slim HEPASilent Air Purification System comes highly reviewed for high quality standards in air purification and allergen removal in small spaces. This filtration system helps to remove dust, dirt, pollutants, and other allergens from the air day and night. This purification system works quickly and efficiently and proves effective for those who suffer from allergies, aggravation from other air pollution, and can even improve one's health in the short and long term. The system has three fan settings and its filter can be removed and cleaned regularly.

Customers say this machine is well worth the price because it works smoothly and beautifully. Many say it is extremely quiet and barely noticeable, but the quality of the air is dramatically better after running this for a while. Many say even larger particles like pet hair and dander lingering in the air is picked up by the filter. Some say their allergy problems have been eliminated altogether after using this.

Some say this only works well for small to medium sized rooms, like apartments. However, the company does make higher capacity ones for larger houses.

The LEVOIT LV-H132 Air Purifier with True Hepa Filter works hard to not only remove dirt, dust, and allergens from the air, but also eliminates unpleasant odors from a space. This system works for medium to large sized rooms to totally revamp a space and make it a comfortable place for those who suffer from sensitivities to allergies or dust particles. The odor eliminating HEPA grade filter also removes smells from mold, water leaks, and even pets, in a matter of hours. Taking care of the home and making it clean and safe to breathe has never been easier with this quiet system.

Customers say the filter works in big spaces, and they can notice a difference in air quality in as little as a few hours, and certainly in a few days. Customers say they enjoy how quiet the filter is, but also love the dim blue lighting that offers up a pleasant nightlight as well. Customers say the system is rather large but does not require the filter to be changed as regularly as large systems.

Customers say that at first, the filtration system may smell funky, and this may be a result of the initial runs. After the system acclimates, this should reduce dramatically.

The BISSELL myAir Air Purifier for Small Rooms is a popular and highly recommended air purifier that works well for small houses or rooms with results that are noticeable within a day. The air purifier is a compact and quiet machine that has three fan speeds, also including a sleep feature with a soft green night light that can be turned on or off. The purifier takes pollutants, irritants, dust and dirt from the air as small as 0.3 microns, making once irritating rooms feel much more comfortable.

Customers say this product is durable and worth the price. Many say they noticed a difference in allergies getting into the home and bedroom, as well as pet odors, in as little as 24 hours. Others say the quiet machine does produce white noise to help falling asleep without being too loud, plus the night light is soft but helpful. Many say it works well for bedroom-sized rooms, as well as small upper levels of homes or offices, and is powerful enough to take on these small spaces completely.

Not many people had complaints about this product. Some say it was a little too loud for their liking during sleep, but others suggest lowering the fan to sleep mode to fix this.

The Holmes Desktop HEPA Air Purifier with Visipure Filter Viewing Window is a very small but powerful machine that combines the power of a HEPA grade filter with the odor-eliminating features of Arm and Hammer to purify rooms and homes in an instant. The air purifier eliminates allergens, dust, dirt and other irritants within days of consistent use. Plus, it's easy to know when the filter needs replacement with a see-through window showing when to change it out so the machine runs at optimal quality.

Customers say this product works well to remove 99% of airborne particles and creates a noticeable difference. Three speeds of the internal fan makes this adjustable depending on how quiet or loud the user wants it to be, but most say this is a very quiet and barely noticeable machine that does the job without making a racket. Others say the quiet fan noise helps them to fall asleep.

Some say the fan is loud. Most disagree with this complaint.

The High-Efficiency HEPA-Type Desktop Air Purifier is a small, compact HEPA air purifier that takes small to microscopic dirt, dust, and pollutant particles from the air, cleaning the air around you. The quiet filter has three fan speeds to adjust to the level of noise that is comfortable, but the filter works well for offices and bedrooms. The carbon filtration system locks in pollutants and purifies the air instantly, helping users to breathe comfortably all day long.

Customers say this air filter works well for small spaces like bedrooms or living rooms. Those who use it consistently say they notice a big difference in the quality of air in their homes or offices. Some say they enjoy the quiet white noise the machine makes in the bedroom, that even can help with sleeping. Those who started using it say the air feels cleaner in just a matter of days. Others say their machine has lasts decades.

Some customers say their unit has broken. It is unclear what has lead to this issue.