Honeywell HPA300 Review: A Worthy Air Purifier For Your Place

In terms of ideal solutions for your household facilities, Honeywell has recently gained grounds in the industry through its wide variety of devices that guarantee to enhance the customers’ living quality, and if you are looking for a device to improve the air quality in a way that conventional strenuous cleaning is still not enough, Honeywell HPA300 review will be worthy of your consideration.

Designed with the innovative True HEPA Allergen Remover, Honeywell HPA300 is capable of driving out almost any airborne pollutants from solid matters such as pet danders, microscopic dust particles, bacteria to cigarette smokes, fire smokes or disturbingly lingering odours, and maintaining a friendly environment for your respiratory system.

Still not buying it? Then how about checking out our 5-minute read Honeywell HPA300 Review and seeing the qualities for yourself. Hopefully, you will find all of your doubts and questions answered at the end of our article.

Why Should You Have An Air Purifier?

honeywell hpa300 review

The Honeywell HPA300 Serves To Aim For:

  • People with allergic symptoms: The Honeywell HPA300 comes with the brilliant True HEPA Filtration System, which is one of the top-quality signs when it comes to air purifying technologies available on the market at the time being. The True HEPA Filtration System can elevate the cleaning rate up to 99.97% of teeny particles in the air, and these particles only measure as much as 0.3 microns such as mold, virus, bacteria, danders and so on. 
  • Asthma attack: you can never expect when an asthma attack will come, especially when your surrounding – which is overflowed with obstructive irritants – seems perfectly fine and normal under your naked eyes.
  • People living with smokers: the majority of people find the smokes of cigarettes really repulsive and disgusting, so do I, and maybe so do you. In that case, the layer of Activated Carbon will come and save the day, for it’s an effective trap against smoke particles, purge your living space out of the cigarette trails.
  • People who are highly-responsive to the air quality: some people are not very fortunate to be born with a highly sensitive sensory system and can easily be distrubed by the smallest alteration in the air quality. If so, Honeywell HPA300 can accompany you to give the best air quality possible for your peaceful rest.
  • People with pets: more often than not, we often neglect the potential risks of pet danders, hair, or even microorganism harbouring on your lovable pet. These factors will eventually trigger the allergic reaction caused by your immune system. That’s why experts advise against coming in close contact with your dogs or cats, and also having a gadget to get rid of those harmful irritants.

Are People Exaggerating The Benefits Of An Air Purifier?

Believe it or not, air pollution is becoming one of the major threats to our health in the modern day. You probably have seen the foggy pictures of some metropolitan areas in the world such as China or India, where the inhabitants got drowned in the thick and dull layer of dust and airborne obstructives. This condition is slowly looming large on the sparsely populated area and private accommodation, or simply, your house. Being able to see what’s floating in front of you while you’re sitting and reading this would be the last thing you want to do, as the density of pollutants in such confined space can climb up to a staggering level of 100 times higher than that on the outside. 

We are aware of this situation, and we did come with every possible solution to make our living space a healthier place. Of course, frequent cleaning and ventilating your room should be the best way to let the air circulate and replenish your room with fresh air. However, the space where we live does not always allow such things to happen, especially in the era when we are living in a concrete jungle with very limited open space. That is why an initiative for a device that actively purifies the air comes into existence.

Apart from being a nice little touch to your living space, an air purifier serves an even more important mission of purging the atmosphere of dangerous and potentially risky pollutants for your lungs. Whatever models or brands of an air purifier you choose, at the end of the day, you want your air to be cleaned. Thus our answer for the existence of the air purifier: No, it’s not exaggerated, it comes with a purpose: to combat against airborne risk factors.

Which mechanism works best to purify air?

honeywell hpa300 review

It may comes to you as a heap of haphazard when looking for a suitable purifying mechanism, but we will narrow it down for you the two main types of air purifiers that are prominent at the moment, so you can make your own consideration:

A True HEPA Air Purifier: HEPA is the acronym of “High Efficiency Particulate Air”, which means that this air purifier is equipped with a fine layer that is able to trap solid particles wandering in the air, and the experimental statistics come out as nearly 99.97% of particles measured around 0.3 microns in diameter are completely captured in this filter. As a result, the output air is free of pollutants.

An ionizer: this air purifier’s mechanism is based on the fact that tiny floating particles are negatively charged; hence an ionizer will generate positively charged particles inside the purifier to create a neutral combination that is driven out of the purifier. This package will solidify and fall to the ground, waiting for you to sweep them away.

Honeywell HPA300 Configuration 

Honeywell HPA300 HEPA Air Purifier Extra-Large Room (465 sq. ft), Black
  • EXTRA-LARGE ROOM AIR PURIFIER – Honeywell HPA300 HEPA Air Purifier helps provide cleaner, fresher air. Recommended for extra-large rooms (465 sq. feet), HEPA Filtration helps capture up to 99.97% of microscopic airborne particles.
  • HELPS REDUCE PARTICLES - This HEPA air purifier has 4 air cleaning levels including Turbo Clean. It helps capture the following microscopic airborne particles: dirt, pollen, pet dander, and smoke.
Product nameHPA300 True HEPA Allergen Remover
Product brandHoneywell
Weight21 lbs.
Dimension18 x 9.3 x 22.5 in.
EnclosureHoneywell HPA300Odour-reducing pre-filter: 1True HEPA filters: 3
Filter lifespanHEPA Filter: 12 monthsOdour and pre-filter: 3 months
CADR Rating for Dust320 cfm
CADR Rating for Smoke300 cfm
CADR Rating for Pollen300 cfm
Room coverage465 sq. feet
Manual fan speed 4
Timer2, 4, 8 hours
Auto modeNo
Noise level< 63 dB
Power consumption127 W
Warranty5-year limited

The Honeywell HPA300 can be called as a “monster air purifier” with an impressive coverage rate up to 465 sq. feet, that is more than enough for a regular household in the US, and it poses to significant matter to a middle-sized room either, as the cleaning rate would be even more efficient. The filtration system of HPA300 consists of two no-nonsense layers: the pre-filter integrated with carbon activated, and the True HEPA Filter.

The model performs a specifically decent job at fighting off the allergens that can trigger an asthma attack or allergic reactions; therefore, HPA300 is considered a warrior against allergic particles and it has made its name in the list of recommended products by doctors and allergists.

Undoubtedly, the Honeywell HPA300 is not without its flaws regarding its lacking in some smart options as well as a pretty inefficiency in portability, which we will discuss further down the article. That said, all in all, Honeywell HPA300 still makes good value for money if you are searching for a powerful air purifier.

In a short assessment below, we will weigh the general pros and cons so that you would have a more well-rounded view of the product.


  • The most reliable no-nonsense air purifier from Honeywell
  • Wide area of effect (up to 465 sq. ft.) with high rating of CADR for dust, pollen and smokes.
  • Reasonable price for an exclusively latest model from the brand
  • Extremely effective against combating allergens
  • Great versatility and flexibility, can be used for different settings
  • Detachable pre-filter and HEPA filters (some models, like Levoit LV-PUR131 does the opposite)


  • Pre-filters with fairly short lifespan of 3 months
  • Industrial appearance, might not be attractive to a common household
  • Only available in black
  • Remote control is currently not available
  • Can be a bit noisy from time to time

In-depth Inspection Of The Honeywell HPA300

Design And Environmental Compatibility

honeywell hpa300 review

The Honeywell HPA300 is provided with an exclusive black colour, which, I think, is a bit limited since you don’t have much of a choice regarding the aesthetic prospect of your entire household, in case you are looking for a white version, try Honeywell HPA304. Anyway, what probably would take us by surprise was its total dimension and weight. Measured by 18 x 9.3 x 22.5 inches and weighing nearly 21 pounds, this piece of monster is a bit of a challenge when you first get this baby out of the box, but things only get easier from now on. In compensation for its fairly oversize design, the machine does assist easy mobility and portability with handles on both sides.

Moving on to the design language, this seems to be the signature of Honeywell makers as they prefer to stick to this particular rounded edges and full-body air intake, which has been on the market for a while. The body is made out of ABS plastic, which possesses resistance against heat and physical shocks. This means that the HPA300 should do fine in a heated environment as well as be able to absorb impact, while leaving no scratches on the surface. 

The filtration layer will be placed in the front, where the air intake takes place. HPA300 has a two-stage filtration process, which corresponds respectively to the two layers of filtration, including the integrated pre-filter and the activated carbon in the first barricade, then the True HEPA Air Filter on the inside. These layers are designed in a way that they can be removed separately, so that you can make replacement whenever needed without interfering with the other one.

honeywell hpa300 review

The control panel, like the majority of any other air purifiers, will be put on top of the machine. This is also where the purified air will be blown out of the machine and circulating around the room. The functional buttons are mostly straightforward and it doesn’t take a tech geek to know how to operate the thing. In case you are still not sure about the function, keep reading as we will explain the details further below.

What really bugs me about the machine is the pretty out-of-the-place design of this air purifier. While this largely depends on individual preferences, I consider this model’s appearance a bit rough and it would fit in a place where “technical stuff” happens like the garage or the office rather than a nicely neat living room or your bedroom, aesthetically only. Functional-wise, the machine should be a perfect companion to fight off any irritants in the air, even in large sized rooms.

Two-stage Filtration System

Honeywell HPA300 really takes the air purifying process to the next level with its elaborate filtration layers. Based on the augmented True HEPA design standard, HPA300 filtration system can eliminate even the hardiest and tiniest air pollutants through only two stages:

honeywell hpa300 review

The A and A+ Honeywell preliminary filter

The first component of the filtration system in Honeywell HPA300 is the preliminary filter that is made out of Activated Carbon Particles, presented in the black layer. Activated carbon is super effective upon absorbing and neutralizing terrible gas, odours, VOCs (volatile organic compounds) and trapping fairly large particles. In general, it extracts the air of its disturbing smell and paves the way for a deeper cleansing process to take place in the next filtration layer, the True HEPA filtration. 

The True HEPA Filter

This is where the air will undergo a thorough filtration process and will be purged out of the most lingering air irritants that luckily pass through the activated carbon filter. The originally made HEPA filter from the brand itself, Honeywell, can spar on with the normal standard on eliminating a staggering 99.97% of airborne pollutants that are around 0.3 microns in diameters. Particles of this size can include dust, smoke, mold spores, allergens, bacteria, virus and other fine particles in the air. Moreover, the True HEPA Technology is free of ozone production, hence better for the environment.

How about the particles less than 0.3 microns? You might ask. Well, the Honeywell HPA300 got that covered, too. The number 0.3 only acts as a representative for the majority of air irritants available in the air, and the filtration system of HPA300 can get even further. In fact, a super super small particle, as small as 0.01 microns, cannot stand a chance against HPA300, so you should not have any worries about the competence of this air purifier.

How the air circulates

The front facade air grill of the machine is where the air is sucked into the filtration system. The air then will be filtered out of potential risks through the two-stage filtration process, before exits via the air grill on the top, surrounding the control panel.

You should have no worries whether the air completely goes into the cleaning process, as the design of the air intake allows this to take place without any obstruction. A round edge air grill allows air to enter the filtration from every corner. 

Where the air exits plays a great significance in the efficiency of cleaned air circulating in the room, because with the exit vent located at the top of the machine, you can place your air purifier virtually anywhere if open space is not allowed and still get the full benefits of the air purifiers, unlike the traditional kind of air purifier which requires being placed in the middle of the room to fully release the air.

Filter replacement

After a period of usage, the filters themselves will be covered in dust during the process, and of course, needs replacement. Normally, the preliminary filter will last about 3 months, while the True HEPA filters can survive up to 12 months. When the time comes to replace, there is an indicator that will signal you, so you don’t need to worry about that. 

Is it expensive to replace the filter? I hate to break it to you, yes “you” means the producer, as it doesn’t cost an arm and a leg to alter the old pieces for the new ones, for the same lifespan. Check out here if you want to replace your preliminary filter and your True HEPA filters.

Impressive Room Coverage

honeywell hpa300 review

What makes this model really stand out is the magnificent area of effect up to 465 sq feet room coverage. Obviously, the HPA300 is a dream gadget for a mega-sized room, and comparatively higher than other contestants in the price range over $200.

The reasons for such a classic, sometimes monotonous, design that you have seen from the start is the high efficiency of air cleaning the model brings about. The ACH (air charges per hour) of HPA300 is as much as 5x, with the CADR (Clean Air Delivery Rate) being 320 cfm for Dust, 300 cfm for Smoke and 300 cfm for Pollen. These figures tell exactly how well an air purifier performs its job within a particular area. So with the maximum area of 465 sq feet, the HPA300 is able to filter out 320 cubic feet of dust per minute, and the whole air in the room would be replenished 5 times every 60 minutes. This is among the high specs in the air purifier family.

Controlling modes

honeywell hpa300 review

The makers have really made the products with user-awareness, meaning that they have created a control panel that can not be easier to maneuver. Users should have no difficulties in figuring out what functions the buttons serve. Just one press and you are ready to go.

Fan settings

There are four different fan settings that are featured on HPA300, except that they go under unique names compared to other brands of air purifier. On the right side of the panel, you will see 4 available options from “Germ”, “General Clean”, “Allergen” to “Turbo”, indicating the level of fan speed from lowest to highest.

Level 1: “Germ” option

This is the entry level of the fan speed, meaning that in this setting, the machine virtually produces very little noise, though there are a number of reviews reporting that this setting is comparatively noisier than the similar setting on other devices.

It’s understandable, though, given the fact that this model is designed to combat air irritants over a large room coverage. In addition, the noise generated by True HEPA machines is often more easily detectable than those using different technologies.

In general, this option provides a comfortable background noise while you are focusing on your favorite movie or you are deep in your slumber, while maintaining a decent performance of cleansing the air.

Level 2:  “General clean” option

Up to one level of speed, the “General clean”, while of course produces more noises compared to the lightest setting, is still pretty acceptable for casual occasions. It is nowhere near to what you may call intrusive and disturbing, and if you are not suffering from noise sensitivity that severely, then level 2 should be okay for your relaxing moments.

Level 3: “Allergen” option

Tough opponents need tough dealers. Once you reach this level, it is not advisable to stay in the process as the noise produced by the machine would be fairly distracting, and you surely cannot have a good sleep while this mode is on.

On the other hand, you can make use of your away time and let the purifier do its job. This mode is preferred throughout flu season and when allergies start to invade. They would mitigate the air problems, before returning to the milder options during your sleep.

Level 4: “Turbo” option

Suffice to say, “Turbo” represents the most powerful cleaning ability of the HPA300. Not only does this function eliminate the hardiest contaminants and odour, it also fast tracks the filtration process with the highest fan speed.  

And obviously, the noise in “Turbo” mode would likely drive you away for a while, but let’s take advantage of that and have some fun going out while the machine does their best. 

When should you use this setting? If you are facing a serious allergies or asthma attack in the place where you live, you may want to set the HPA300 on “Turbo” setting for 1-2 hours, before tone it down to level 1-2 to help maintain the freshly cleaned air. 

Dimmer for Sleeping Time

This option will allow users to adjust the brightness on the control panel to suit their needs. For example, if you are a person who prefers to sleep in complete pitch black, this option would let you dim the light on the control panel. Not only so, you can make it even brighter, or just shut it down completely if you are not fancy using the light. It’s all up to you. 

Filter Replacement Indicator

Having too much on your plate to worry about maintenance? Don’t worry, the HPA300 comes with the indicator telling you when will be the ideal time to make changes to the hard-working filters. The lights will signal separately for two layers of filter, so you will have no trouble telling which needs replacing. What’s even more is that these filters can be replaced individually, meaning that you can replace one of which when it’s needed without changing the whole compartment of the filtration system.


This function works best when you want to leave the machine run for a particular period of time, especially when you are away and you don’t want to throw a bunch of energy out of the window. On that account, there are timer settings for you to choose.

The machine comes with three options for you to select after how long you want to turn off the machine: 2 hours, 4 hours or 8 hours. People have different opinions about this, some say that this doesn’t give them much freedom of choice, while some have no problems with this. I personally think that the predetermined timer settings help to maintain a decent cleaning process, so I feel fine with it. 

Power consumption

This is one of the main concerns when you look into when buying, not only an air purifier, but every household electrical appliance. An energy efficient device should prevent you from wasting money on electricity bills and increasing the carbon footprint that is already at an alarming level nowadays.

Honeywell understands this matter and makes sure that their products would comply with the standard benchmark of energy efficiency, that is the Energy Star rating issued by the US Environment Protection Agency. Then again, since this model is a rather industrial model that aims at large coverage areas, a high power consumption of a minimum 40 watts in “Germ” setting to a maximum 130 watts for the “Turbo” setting may come as a low efficiency in energy consumption. It’s the price you have to pay for a better and more thorough air cleaning quality. 

However, it’s not likely that you will put on the “Turbo” setting permanently, so the total outcome should not be off the roof.

Alternatives from Honeywell

Honeywell has made its name recently in the air purifier market, so it’s no doubt that you are having access to a wider alternatives provided by Honeywell if you are still pondering over which product you should make a purchase. Let’s have a look at our list:

Honeywell 50250

Honeywell AirGenius 5

Honeywell HPA200

Honeywell QuietClean

Honeywell 50250

Honeywell 50250-S True HEPA Air Purifier, 390 sq. ft, White
  • LARGE ROOM AIR PURIFIER – Help make the air in your home cleaner with the Honeywell 50250-S HEPA Air Purifier. Recommended for large & extra-large rooms (465 sq. feet), it helps capture up to 99.97% of airborne particles as small as 0.3 microns.*
  • HELPS REMOVE MICROSCOPIC PARTICLES AND MORE - This HEPA air purifier has 3 air cleaning levels. It can help remove particles like pet dander, pollen, dust, and smoke*. It can also help reduce certain bacteria, mold spores and viruses***.

The 50250 model of Honeywell air purifier acquires a cylindrical design, which allows 360 degree of air intake. This is a major plus point to air circulation, especially within limited rooms. To make sure that the performance is always maintained, Honeywell introduces the SurroundSeal technology to lock in the taken air and prevent it from leaking out of the compartment. 

This model can compete with the HPA300 if users are looking for a solution to their middle to large rooms, as the device is able to cover up to 400sq ft with a CADR rating of 250 cfm. The ACH level 5 will make sure that your room air is frequently replenished with fresh new air.

Honeywell AirGenius 5

Honeywell HFD320 Air Genius 5 Air Purifier, Large Rooms (250 sq. ft.) Black
  • TOWER AIR PURIFIER – The Honeywell HFD320 AirGenius 5 Air Purifier helps provide cleaner, fresher air. Recommended for large rooms (250 sq. ft.), it helps capture up to 99.9% of microscopic airborne particles.*
  • HELPS REDUCE ALLERGENS – This quiet air purifier has 5 levels of cleaning power and patented ifD technology to help capture the following microscopic airborne particles: dust, pollen, pet dander, dust mite debris and smoke.*

The AirGenus is another branch of the Honeywell, besides HPA, that provides high quality air purifiers. GeniusAir 5 also functions based on the True HEPA Filtration system, using the pre-filter with odour-reducing ability and the powerful True HEPA filter.

Compared to the HPA300, the AirGenius 5 design is inspired from a tower structure, which gives a lot more space efficiency than its HPA counterpart. This design is especially ideal for compact rooms with limited space. The Honeywell AirGenius 5 comes with 5 settings of fan speed and covers an area of 250sq ft, and rated around 160 for CADR rating. Overall, AirGenius 5 is a perfect choice for a space-saving solution.

Honeywell HPA200

Honeywell HPA200 HEPA Air Purifier Large Room (310 sq. ft), Black
  • LARGE ROOM AIR PURIFIER – Honeywell HPA200 HEPA Air Purifier helps provide cleaner, fresher air. Recommended for large rooms (310 sq. feet), HEPA Filtration helps capture up to 99.97% of microscopic airborne particles.
  • HELPS REDUCE AIRBORNES - This HEPA air purifier has 3 air cleaning levels including Turbo Clean. It helps capture the following microscopic airborne particles: dirt, pollen, pet dander, and smoke.

The first thing that pops up in my mind when I see the HPA200 is that it looks nothing different from its twin HPA300. You can say that HPA200 is very much like a little brother of the HPA300. That doesn’t mean that HPA200 comes nowhere near as his brother. 

Although the price discrepancy is only 50 bucks, HPA200 still possesses an outstanding coverage rate of 310sq ft and a CADR rating up to 200cfm. HPA200 similarly comes with 4 levels of air purifying like its descendants. In general, if you are looking for an as powerful machine as the HPA300 but at a lower budget, then why not have a look at the HPA200?

Honeywell HPA QuietClean

Honeywell, Black HFD-120-Q QuietClean Oscillating Air Purifierwith Permanent Washable Filters, Medium Room(170 sq. ft), 29" x 11" x 10"
  • OSCILLATING AIR PURIFIER – Honeywell HFD-120-Q QuietCleanOscillating Air Purifiermakesthe air in yourhome cleaner. It circulates air in a medium room(up to 170 sq. ft)&helps capture up to 99% of airborne particles as small as 2 microns
  • HELPS REMOVE DUST AND MORE -This quietair purifierhas 3 air cleaning levels that can help remove particles like pet dander, pollen, dustandsmoke. Also hasan on/off oscillation control and LED touch button control panelfor easy adjustment

If you are put off by the noise generated by the HPA300, but still want to have a go at the Honeywell brand, the QuietClean model of the HPA Honeywell might be an alternative just for you. The QuietClean possesses many features that might attract a number of users, particularly their compact size that provides easy mobility and portability. 

It’s a great choice for a small room with a coverage area of 170 sq ft and up to 132 CADR rating for pollen, one of the main causes of allergic reactions. However, the most distinct feature that makes people fall in love with this model is that you can actually wash the dirty pre-filter, which normally can cost up to 100 dollars to replace a new one. It’s absolutely a brilliant choice for those who intend to buy an air purifier on a budget for their limited living space.

Honeywell 50250.

Final thoughts

Despite a somewhat out-of-the-world design and the noise level being a bit uncomfortable to cohabitate with, the Honeywell HPA300 is still a worthy air purifier for a spacious area, and it’s  absolutely effective for people who are struggling to survive through allergic seasons and asthma attacks. Plus with the “Turbo” mode, you can make the air purification process become much more time-efficient; moreover, the trusted name that Honeywell has made for their own is the brightest evidence that will vouch for the quality of their products. There you have it, make sure to check out Honeywell HPA300 on Amazon once you have made your decision.

We also do thorough reviews on household appliances including air conditioners, refrigerators, vacuum cleaners and so on, so feel free to have a look.

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