Honeywell 50250 S Reviews

| Last Updated: March 6, 2021

The Honeywell 50250 S True HEPA Air Purifier was designed to help you manage even the worst indoor air pollution problems. It incorporates the most powerful and efficient filtering technology currently available on the market. It was designed to vanquish airborne pollutants in even the largest rooms, converting them into safe and comfortable spaces to occupy.

If your health or the health of your loved ones is being affected by chronically contaminated indoor air, the Honeywell 50250 S could be exactly what you need. It can help restore your home’s air to nearly pristine condition after just a few days in use. The Honeywell 50250 S is a proven and durable performer, as a multitude of satisfied customers is prepared to attest.

Read on to uncover the best features of this top-of-the-line air purifier.

Main Features

The Honeywell 50250 S True HEPA Air Purifier is manufactured to handle tough assignments. It purifies the air aggressively and comprehensively, to suit the needs of those who suffer from allergies, asthma and other nagging respiratory issues.

Its main features include:

Top Line Filtering Technology

HEPA stands for ‘high efficiency particulate air’ and a HEPA filter meets the highest standards of excellence in the air purifying category. To gain this designation from the Department of Energy, an air filter must remove 99.97 percent of airborne particulate matter larger than .3 microns in diameter. The Honeywell 50250 S HEPA filter hits both of these target numbers, certifying its master status as an authentic remedy for indoor air pollution.

Multiple Speeds and Settings

The Honeywell 50250 S has three fan speeds: low, medium, and high. This lets you customize its performance based on the size of the room, levels of airborne contamination, and how quickly you want the air purified. If you plan to run your air purifier continuously, the low setting is usually sufficient to guarantee reliable and sustained performance.

Large-Room Capacity

The Honeywell 50250 S is built to fully purify the air in rooms of up to 390 square feet in size. It can also function efficiently in larger spaces, on a high-speed setting, even if it doesn’t remove the normal 99.97 percent of particulate matter.

Double-Filtering System

Before air reaches the HEPA filter, it first must pass through an activated carbon pre-filter. This pre-filter removes a significant portion of the larger particulate matter that could quickly clog an unprotected HEPA filter, extending its lifespan and increasing its efficiency.

360-Degree Filtering and Discharge Design

The Honeywell 50250 S is constructed in the shape of a cylinder, with a 360-degree filtering range to match. Air intake and discharge take place around the entire circumference of this air purifier, which sets it apart from less efficient models that have intake and discharge grills facing a single direction.


Below are the biggest benefits of this model:

Advanced Allergen Removal

Microscopic particles cause allergic reactions and other serious respiratory issues by penetrating far inside the nasal passages and the lungs. But the Honeywell 50250 S HEPA filter captures particles down to a size of .3 microns, which is as good as it gets in air purifiers. HEPA filters will successfully trap airborne dust, pollen, pet dander, smoke, chemical traces, mold spores, and bacteria, letting you and your family breathe deeply and easily with total peace of mind.

Maximized Filtering and Air Distribution Range

The filtering and air distribution grill wind around the entire surface of the Honeywell 50250 S, providing for maximum coverage of the surrounding space. The cylindrical filter has a larger surface than most air purifying filters, giving it the capacity to capture prodigious quantities of airborne pollutants. When purified air is discharged by the Honeywell 50250 S, it is distributed equally in all directions, meaning everyone will be breathing easier no matter what part of the room they occupy.

Superior Odor Reduction

The activated carbon pre-filter reduces the quantity of particulate matter that reaches the HEPA filter. But it performs another important function as well. Activated charcoal does an outstanding job of absorbing particles that cause bad odors. Your home will have a much fresher and purer fragrance after the Honeywell 50250 S has been in action for a few days.

Filter Cleaning and Changing Alerts

The Honeywell 50250 S features two filter warning lights. One will notify you when the pre-filter needs to be changed, which is approximately every three months in most cases. The other will let you know when the HEPA filter needs cleaning, which will be every one or two months in most cases.


However, there are some drawbacks:

Noisy on Medium and High Settings

This is the number one consumer complaint about this air purifier. When the Honeywell 50250 S is set on medium or high, some people find the noise it produces distracting or annoying. Even on its lowest setting, it may not be suitable for overnight use in bedrooms, unless hearing a steady background noise helps you sleep.

Some Allergens or Microbes May Get Through

HEPA filters are highly effective. However, they are not perfect. Some viruses and smoke particles have diameters of less than .3 microns, meaning the Honeywell 50250 S will let them through. It should be noted, however, that this limitation is inherent in filtering technology and is not a problem with this air purifier in particular.

Regular Filter Replacement is Necessary

The activated carbon pre-filters should be replaced every three months, to ensure optimal air purifying performance. This is not difficult to do. But the Honeywell 50250 S uses filters specially manufactured for its cylindrical shape and they are not the cheapest available on the market. Also, while you can extend the lifespan of the appliance’s HEPA filter by vacuuming it with a hand vacuuming attachment every month or so, it is not a permanent filter and must be replaced every three to five years.

What is the Honeywell 50250 S Best For?

This air purifier will do an excellent job in any room, but it is a superior choice when preventing allergic attacks and chronic respiratory illness is your highest priority. It is especially recommended for families with young children in the home, or for those who suffer from asthma, hay fever, or other pre-existing breathing-related conditions.

If you live in an apartment of modest size, one Honeywell 50250 S may be enough to meet your air purifying requirements. But if you are serious about keeping every room in your house free of dangerous airborne contaminants, you might want to consider buying more than one. An alternative option is to simply carry the air purifier with you from room to room as you move about the house if you can handle its 21 lb. weight.

Bottom Line

If you’re the typical American, you may spend up to 90 percent of your time indoors, breathing air that is up to five times more contaminated than what you’d be exposed to outdoors.

You may already be suffering various signs of an allergic reaction caused by indoor air pollution (i.e., constant runny nose, sinus congestion or infections, unexplained rashes, dry and itchy eyes, throat, or nose, etc.). But even if you aren’t, that is no cause for complacency. Such symptoms could develop at any moment if you continue to breathe in air laden with microscopic allergens and other irritants.

The Honeywell 50250 S can stop these problems in their tracks. If used consistently in the rooms you occupy, and if kept clean and well-maintained, this acclaimed air purifier will have you and every member of your family breathing easier in no time. Just plug it in and let it work its magic, and your lungs and nasal passages will soon be clearer than they’ve been in years. 

My name is Bob Wells and I am a retired HVAC tech from Washington state. I am currently retired and no longer do much with HVAC, however, I feel like I have a lot of knowledge in the subject and I wanted to create a website where I could talk about what I've learned and help upcoming HVAC techs. Find more info about me and HVAC Training 101.