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honeywell hpa300 big

If you’re looking to purchase a high-quality model for your home or office, you’re in the right place! In this article, we will give you a complete Honeywell HPA300 review, from a technical analysis of its features, maintenance information, and more.  

The Honeywell True HEPA Allergen Remover HPA300 comes from one of the most reputable brands that produce the best air purifiers on the market. You can use this purifier for large spaces and different room types with its convenient handles, manageable noise level, and low-profile design.

Honeywell HPA300 AirHonest Awards
🥈Runner-Up for Best Air Purifiers for Allergies

Technical Analysis: Honeywell HPA300

Honeywell HPA300 has an attractive appearance, and it even comes with a detailed instruction booklet. While it looks like most of the other air purifiers of the same brand, its classic appearance is very appealing. 

The Honeywell HPA300 boasts 3 different levels of air cleaning. First is the pre-filter made of activated charcoal which covers the inlet’s entire surface area. The main purpose of this filtration level is to eliminate powerful odors. It also helps filter out large airborne particles. The pre-filter captures things like dust bunnies, pet hair, and more.

The second level is the High-Efficiency Particulate Air (HEPA) filter which captures smaller, finer airborne particles. This layer is easy to clean. When dust accumulates on this layer, you can run it under the sink, vacuum it or even replace it using certified Honeywell HEPA filters. The HEPA filter provides you with the cleanest air possible

The third air cleaning level is the Turbo setting which enhances the effects of the first two levels. 

honeywell hpa300 filter

Honeywell HPA300 Design Review

The metal body of this air purifier has rounded edges with a full-body grill for air intake. Given its reasonable price, the durability of this model exceeds expectations. You can find the function buttons of this model at the top of the device. It also has two LED indicator lights for True HEPA filter and pre-filter replacement. 

The Honeywell HPA300 comes with handles on both sides allowing you to carry it conveniently from one room to another. Although you can use it to purify the air of smaller spaces, it’s quite large for small rooms. If you need a permanent purifier for such a room, you may want to opt for smaller models from the same brand. 

honeywell hpa300 controls


This simple machine works in a simple yet highly effective way. First, the air purifier continuously draws the pollutants in. After that, the activated carbon pre-filter starts absorbing odors, gases, and volatile organic compounds (VOCs) while trapping bigger particles too. To ensure maximum efficiency, replace the pre-filter every 3 months or so. 

The True HEPA filter also captures particles continuously – up to 99.97% of particles passing through it. It’s even powerful enough to capture particles as tiny as 0.3 microns. Finally, the machine returns fresher and cleaner air back to your room. 

Unique Filtration System

This powerful air purifier has a durable design and a number of cutting-edge features. It’s designed to maintain the cleanliness of your indoor air. The Honeywell HPA300 has a very high-efficiency rating and it makes use of a unique filtration system that eliminates pollutants and odors. It has two types of filters:

  • Pre-filter includes an Activated Carbon filter within it. This filter helps trap large particles while absorbing odors, gases, and VOCs. Since it’s combined with a carbon filter, you need to replace this filter every 3 months. 
  • True HEPA filter is the heart of this air purifier – and it allows the machine to capture as much as 99.97% of particles and pollutants like pollen, mold, viruses, germs, pet dander, and other allergens. For this filter, you would have to replace it at least once each year. 

When using this air purifier frequently, only one of the filters requires frequent changing. Even so, replacing this filter doesn’t cost much. The filtration system monitor tells you when you need to change the filter and doing so is a breeze. 

To change the filters, push the top of the casing to reveal the filters. Then replace the old filters with the new ones. Just make sure that you use replacement filters from the same brand. 

Other Notable Features

Here are other top features of the model that make it a good choice to buy. 

  • Noise level

When you use Honeywell HPA300’s lower speed settings, it works quietly. But the higher the setting you use, the noisier the machine gets. This is one of the most common issues customers have with this model. However, some customers claim that the sound it makes can be “nice background noise.”

  • Area coverage

Another great thing about this air purifier is its coverage. Since it’s meant for extra-large spaces, it covers up to 465 square feet! This means that whether you place it in a small room, a large room or virtually any room in your home, you can expect it to purify the air to give you a better breathing experience. 

  • Energy consumption

This is an energy-efficient air purifier. Even while using it on the highest setting, you won’t experience a huge increase in your energy consumption. It even includes control lights that you can adjust so they won’t illuminate your room at night when it’s time to sleep. This is another feature that saves energy. 

  • Warranty

This model comes with a limited warranty good for 5 years. The warranty applies to replacement or repair in terms of factory defects or poor workmanship. However, it doesn’t cover any damages caused by the consumer. Also, the warranty doesn’t apply to the machine’s filters. 

Product Design

This machine has an industrial appearance. It’s quite big with horizontal slats made of plastic across the front. Because of its size, it’s not suitable for rooms with other large appliances or electronics like white noise machines, space heaters, and more. Here are some details about the Honeywell HPA300’s design:

  • Size: 9.2 x 20 x 22.2 inches
  • Weight: 21 pounds
  • Position/Type: Since it’s quite large, it’s meant to stand on the floor. 

Maintenance of Honeywell HPA300

The Honeywell HPA300 makes use of filters which you must change as needed – every 3 months for the pre-filters and every year for the true HEPA filters. This ensures that your air purifier operates effectively to get rid of unwanted particles in the air. Pre-filter replacements are super affordable while true-HEPA filter replacements are mid-high range. 

This machine has a digital screen that indicates when it needs a filter change. As soon as you see the filter light signal, change the filters as soon as possible. Also, make sure that you purchase the appropriate filters before making replacements. As with other Honeywell air purifiers, this model is easy to clean. 

Pros and Cons: Honeywell HPA300

As with all other products, the Honeywell HPA300 has its own standout features that set it apart from other models along with some weaknesses that customers have discovered. Here are the pros and cons of this model:


  • Works quietly and efficiently.
  • Improves air circulation.
  • Purifies the air quickly.
  • Energy-efficient.
  • Superior design and construction.


  • It’s relatively expensive.
  • The high-speed setting is fairly noisy.
  • No auto-mode. 

Why it’s the best choice?

Among all the air purifiers available on the market – even from the same brand – the Honeywell HPA300 is one of the best options. It has a superior design, excellent features, and a reasonable price compared to others with the same features. With this model, you’re getting great value for your money. 

Although some customers had issues with the level of noise it makes (when on high settings), you can’t deny its superior efficiency. The Honeywell HPA300 is your best option for preventing the invasion of allergens in your home. 

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