How Pollution Damages the Brain? Complete information

It is commonly known that pollution can damage the respiratory system, but this is not it; it causes a severe impact on your brain, too, leading to different diseases. In this guide, I am referring to how pollution damages the brain and how you can minimize pollution indoors. 

How Pollution Damages the Brain?

It has been researched that with the passing of time, people are experiencing many mental health issues, such as depression which keeps growing. One of the reasons is exposure to air pollution, which can cause damage to the cognition of your brain and may compromise mental health. In some cases, they even have an impact on the 

The 5 Best Air Purifiers Made in the USA 2023

Nowadays, mental health is somehow tied some of its roots to air pollution, which mental health representative has backed up. A person who is more exposed directly to air pollution is at high risk of getting different mental health disorders, even from childhood. 

This may seem surreal, but air pollution does put you at risk of getting a stroke, depression, Alzheimer’s and even Parkinson’s disease. The reason is that metal-toting particles that we breathe in when reaching the brain can damage the neurons directly. These tiny particles make their way to the brain through the olfactory nerve. 

Dyson Air Purifier HP02 |A Complete Review

What are the pollutants that cause brain damage?

In research, it has been found that particles like lead and mercury. Hence, the metal-toting particles reach directly to the brain, damage the neurons and become a cause of mental disabilities in children and adults cognition declines and depression. 

How does air pollution reach the brain?

Fine particles are the dangerous ones that travel all the way to the brain. They travel through the bloodstream, are inhaled through the nose, parsing through the lungs, they reach the brain. 

Initially, only the lungs were considered to be affected by air pollution, which was later explored in-depth are resulted in additional health issues due to its impact on the brain. 

Hence, it is important to improve the air quality indoors, which can be maintained through regular cleanliness or by adding a good quality air purifier. They must have HEPA filters accompanied by activated charcoal for ultimate purified air. 

Blue Air Pure 211+ Fan Noise

Thus, here I am sharing some air purifiers for large rooms that offer great coverage for rooms and even for the whole house. 

My Personal Choice for the Best Air Purifier for Indoors

  1. Medify MA-112
Medify MA-112


Product Specifications

  • Weight: 33.5 lbs.
  • Coverage Area: 2500 sq. ft. for 2 ACH and 1000 sq. ft. for 5 ACH
  • CADR Rating: 500 
  • Filters: Three-stage H13 
  • Noise level: under 70 dB

This air purifier offers coverage to 2500 sq. ft., which is quite amazing for 2 ACH and comes with H13 HEPA filters with a combination of 3-stage filtration. Due to the broader coverage, it has the ability to purify the air of the whole house. 

A pre-filter, activated carbon, and HEPA filter follow the filtration system that completely removes the pollutants, 99.97% microns, to be precise. Such air purifiers are good to be installed in hospitals as well. 

Bissell 220 Air Purifier Reviews 

The secondary prefilters are constructed with polyproline fibers which effectively catch pet dander and hair. Medify Ma-112 has a high CADR rating which is quite impressive; no wonder this unit is worth for money, and its price is justified by its specification.


  • Impressive coverage area
  • Advanced filter, H13 in three-stage filtration
  • 500 rating for CADR; preferred medical-grade air purifier


  • Although the noise level is below 70 dB, it is still above average
  1. Blueair Classic 680i 
Blueair Classic 680i 


Product Specification

  • Weight: 35 lbs. 
  • Coverage area: 1745 sq. ft. 
  • CADR: 450 
  • Noise level: 32 to 62 dB
  • Filters: HEPASilent and dual protection 

The Blueair Classic 680i is a large air purifier with the finest CADR rating and maximum airflow combination. The airflow rate is great, which is 650 CFM with a combo of 450 CADR that offers coverage to a large room with ease.

Almost all of the features you might want in an air purifier for a 1,000 square foot space are there in the Blueair Classic 680i, such as featuring a 1745 sq. ft. coverage area at ACH 2 and a 698 sq. ft. coverage area at ACH 5. 

Hokie Air Purifier -An Extensive Review

The filtering system of the Blueair Classic 680i is comprehensive as it uses a HEPASilent filter with DualProtection that serves as the system’s brain and purifier air efficiently. The HEPASilent is, in all honesty, an effective attempt to lower noise levels. With 650 CFM and a noise level of over 65 dB, the Blueair Classic 680i is the most potent large room air purifier. The HEPASilent produces noise at a maximum of 62 dB, which is better but still not ideal.

Further, it features sensors for indoor air quality that track it and Auto Mode, which automatically adjusts the fan speed setting to catch as many air pollutants—as are necessary to either maintain or enhance air quality at the time. 

The Blueair Friend app lets you track the air quality (you connect it via wi-fi). It also allows setting a timer for your unit. 

In short, you can freely count on Blueair Purifier as a part of your home. 


  • Powerful airflow 650 CFM and high 450 CADR rating that captures dust, pollens, smoke, etc., effectively
  • Diditalized unit; come with monitor 
  • Wifi connectivity, app-operated  


  • Probably noisy even with a 62 dB maximum level
  1. Cowat Airmega 400 Air Purifier for large room


Product Specification

  • Weight: 24.7 lbs. 
  • Coverage area: 1560 sq. ft. 2 ACH, and 624 sq. ft. 5 ACH
  • Filters: Max2 HEPA with Washable prefilter
  • Noise Level: 22 to 52 dB

Coway is a company that is distinguished by its unmatched performance. The finest Coway air purifier for large spaces is the Airmega 400 Smart. You can learn more about how it works even better than the consistently praised Coway AP-1512HH Mighty in the Coway air purifier reviews found here.

The Coway Airmega 400 Smart’s performance may be attributed to two factors: its strong 340 CFM airflow and, more crucially, its Max2 HEPA filters, which raise the CADR rating to 350. With the exception of the Alen BreatheSmart 75i, only the Coway Airmega 400 Smart has a larger CADR rating than the airflow.

Toshiba smart WIFI Air Purifier Review

This implies that it is incredibly effective in removing air pollutants like smoke, pollen, and dust in the appropriate coverage area. The Coway Airmega 400 Smart offers a vast coverage area that can cover even big rooms, measuring 1560 sq. ft at 2 ACH and 624 sq. ft. at 5 ACH.


  • Great performance; the CADR rating is 350 
  • Engineered perfectly 
  • Optimal performance with a low noise level
  • Affordable air purifier 


  • May not cover area may not cover 2000 sq. ft room
  1. Molekule Air Pro Air Purifier 


Product Specifications

  • Weight: 22.9 lbs. 
  • Coverage: 1000 sq. ft. 
  • Filters: PECO Filtration
  • Noise Level: 33-64 dB

PECO filtering technology is on par with NASA. All Molekule air purifiers feature PECO filters, which use photoelectric catalytic oxidation to eliminate air contaminants rather than the conventional HEPA-based filtering method. The frequently contested deactivation or eradication of certain bacteria and viruses is an added benefit of that.

The largest Molekule air purifier, the Air PRO, has a coverage area of 1000 square feet at a 2 ACH. We lack standards for maximum airflow or CADR rating because of the innovative filtering method.

We do have noise levels, however. The maximum is 64 dB, and the minimum is 33 dB, which is definitely not ideal.


  • Innovative PECO filters, HEPA Based
  • Impressive coverage 


  • Quite noisy even with the low noise level

The reason for choosing these products and considering them the best option 

As I was saying, the cleanliness of the air can be maintained by regular cleaning and a good quality air purifier. Therefore, while selecting the best air purifiers, I have given importance to the large room air purifier due to their wide coverage. 


Pollution is dangerous in all terms for health, and it is not only limited to the breathing disorder. The latest research has proved that air pollution is dangerous and has an impact on the mental health too, even in the children’s development age.
Here, I have given some best options for air purifiers that potentially minimizes the air pollution and the risk of any sever impact on the brain. 

Leave a Comment