The Colzer Air Purifier

The Colzer air purifier with a True HEPA filter is one of the best choices when looking for an affordable air purifier for large spaces. My previous air purifier just wasn’t able to provide enough fresh air in my large living room. The noise level was also disturbing and to be honest, pretty irritating too. It definitely didn’t make my home welcoming or a comfortable place to be.

To solve the problem and create a more relaxing environment for my family, I needed a good quality air purifier at a reasonable price. I ended up selecting the Colzer air purifier which is designed with loads of functionality and provides excellent air quality; thankfully, it also addressed the problem of noise and efficiency!

Colzer Spec
  • Designed with child lock feature
  • Less noise on sleep mode
  • Ideal for large areas
  • True HEPA filter
  • Lacks App Control
  • Low CADR
  • A bulky weight which hinders moving it around

Things to Consider Before Buying an Air Purifier

An air purifier removes air pollutants such as pet dander, dust, smoke, and pollen. Essentially, it improves the air quality in the spaces that we live. They are particularly helpful for people suffering from asthma and allergies. Air filters with a true High-Efficiency Particulate Air (HEPA) filter can trap 99.9% of impurities and dust particles, including dander, spores, dust mites, molds, and pollen.

Below are some of the things which I found useful to consider when buying an air filter.

The noise levels vary in different air purifier brands and models. It can be as low as 17db or as high as 60 dB. While some air purifiers produce a humming sound, others are practically silent. If you are using the appliance in the bedroom, you will want to choose a relatively quiet device.
Energy Efficiency

When choosing an air purifier, you need to factor in the energy cost. Note that while some purifiers are energy efficient, they may only clean a small area. You need a machine which is both energy efficient and effective.

Maintenance Costs

The cost of the air purifier is an important consideration, especially if you are on a budget, but you also need to consider the ongoing maintenance costs. Some machines are fitted with a long-lasting, expensive filter while others come with cheaper filters that can be replaced frequently, then you have those with filters which are washable.

The most important thing is the primary filter. Generally, you will want to invest in a purifier fitted with true HEPA filters.

Size of the Room

Before buying a purifier, you should figure out how much space you need it to clean. A small unit will not give you the results that you’re looking for if it’s placed in a large open area. Meanwhile, a large unit will cost more to run.

Pollutant Size

An air purifiers rating depends on their ability to clean varying sizes of pollutants. And, some air purifiers are more effective in trapping particular pollutants than others. For instance, if you need a machine to filter out odor, a purifier designed with an activated carbon filter will be your best bet.

Key Features of the Colzer Air Purifier

1.  3 Stage Filtration.

This air purifier contains a prefilter, and then a  composite filter which combines a true HEPA filter and activated charcoal. The prefilter removes air contaminant that may block the filtration kit. So that means that it extends the lifespan of filters. The true HEPA filter with activated charcoal filter kit captures air pollutants that trigger allergies and asthma attacks. What’s more it removes viruses, bacteria and 99.9% of air pollutants measuring 0.3 microns.

The HEPA filter does an excellent job removing pet hair, fur, and dander. Additionally, activated charcoal removes gases, smoke, and volatile organic compounds.

Colzer Filters
2.  Safe and Reliable

The air purifier is safe and reliable to use. The manufacturers pride themselves on meeting strict industry requirements after rigorous tests. The air purifier has certifications from FCC, ETL, and CARB. Another important functionality is the child lock feature. It ensures that your children cannot alter your desired settings.

3.  Low Maintenance

This is a low maintenance system. You only need to replace filters on the manufacturer’s guideline timescale. Remember also to wash or vacuum the pre-filter when doing filter kit replacement.

4.  Low Noise

At the lowest speed, the BKj33 Colzer air purifier operates at a 28 dB noise level which is quieter than a whisper. The appliance is designed with a sleep mode that changes the noise level and fan speed to the lowest level. The soothing and restful indoor atmosphere then allows you to sleep soundly.

5.  Comes with Auto Mode

Colzer BKJ33 True HEPA air purifier has state of the art, smart sensors. It uses real-time air quality reading to adjust between 3 fan speed settings automatically. You can also choose how long you want it to operate, resulting in energy savings. It also comes with a change filter indicator light to remind you to replace your filters.

6.  Ideal for Large Rooms

Colzer air purifier can cover up to 800 ft². This makes it the perfect machine for large rooms, open plan areas, and for offices.

Colzer Floor Plan
7.  Great design

The air purifier boasts of a sturdy built and aesthetically appealing make. It comes with a sleek white design that features a glossy finish.


From reading the reviews available on the internet, most users of Colzer true HEPA air purifier seem very happy with their purchase. 

Well packaged, easy to set up and intuitive to use.

I really appreciate how quiet the unit is to run at night.

Works well but is very heavy to move from room to room, not a portable piece of kit.

Had problems with the filters, but manufacturer sent me a free pack. Now all working fine.

Alternatives to the Colzer Air Purifier

Coway mighty whiteCoway AP-1512HH Air Purifier with True HEPA and Eco Mode.

The Coway is an effective, affordable, and efficient air purifier ideal for people who want to eliminate heavy smoke pollution. Although slightly costly than Colzer, it comes with an Ionizer for trapping the smallest air particles. It also comes with an eco-mode that shuts down the fan if they detect no pollution.

+ Four-stage filtration system
+ Removes up to 0.3 mm particles with HEPA
– Its ionic feature emits a limited amount of ozone.
– It may create some noise when working at a higher power setting

Hathaspace HSP001Hathaspace Smart True HEPA Air Purifier

This air purifier is a great deal if you want to remove toxic air from your space. Unlike Colzer, it comes with a 5 in 1 purification system featuring Nano cold filter, cellular activated carbon filter, antibacterial filter, true HEPA, and ionizer. It is also cheaper than the BKJ33 Colzer air purifier. It is a suitable choice if you want to eliminate all potential allergies.

+ Very quiet operation with minimal operating noise.
+ Five stage filtration to remove the smallest pollutants.
– The ionic feature may cause problems for those with asthma
– Reports of high energy usage

Blueair Blue Pure 211+

Blue air blue pure 211+ prides itself in stellar performance, especially in large rooms. It comes with two washable pre-filters. However, it is much more costly than a Colzer air purifier.

+ Quiet operation
+ Low-cost for replacement filters
– No true HEPA filter
– No air sensor


The Colzer Air Purifier with True HEPA Filter provides excellent filtration, quiet operation and a powerful reach of 800 sq.ft.   We love the extra features such as automode, child lock, and the special set-up designed to clean the air at night  but without interrupting your sleep.

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