What is PM 2.5 Filter and How does it Work?

3.3/5 - (6 votes)

The PM 2.5 filter purifies your indoor air particles that cause respiratory diseases. You find these filters in latest air conditioners and air purifiers.

The increase in respiratory diseases is a direct result of air pollution. Controlling air pollution has become a necessity now.

However, to control the pollution, it might take time. In such a case purifying your indoor air can be a great option.

Here, you get to know how essential these filters are and how they work.

What is a PM 2.5 Filter? How Does it Work?

The PM here refers to the particulate matter, and the 2.5 refers to less than 2.5 micrometers. This PM 2.5 filter filters these kinds of extremely tiny micro particles.

PM 2.5 filter

It has a Polytetrafluoroethylene (PTFE) membrane that decreases friction and wears and tears.

This membrane has also been used on non-stick pans to capture these particulate matters. It has now been a benchmark to gauge industrial hygiene and workplace safety.

This membrane is applicable in gauging the air quality through the EPA test method. 

This PTFE is a soft, flexible material that comes with 2.0-micron pore size. This is efficient to capture 2.0 micro meters of particles.

What is PM 2.5?

As now you know what a PM 2.5 filter is, it is essential to know more.

For example, what are PM 2.5, from where do they come and how dangerous are they?

The PM 2.5 are fine dust particles. Their size is 2.5 microns or less than that. Basically, these are the result of vehicular emission, burning of wood or oil and other such stuff.

The power plant emissions, aeroplanes, forest fires, storms, volcanic eruptions, agricultural burnings also add to the PM 2.5.

There are some PM 2.5 that are directly emitted into the air.

On the other hand, some other particles and gases that react with each other and form the PM 2.5.

Basically, these are the emissions from power plants.

For example, the Sulphur DiOxide as emitted by the power plants reacts with the Oxygen and water and forms H2SO4.

How Dangerous is PM 2.5?

PM 2.5 is very small and light. As a result, they stay suspended in the air for a longer time.

Therefore, it has a higher chance for humans and animals to inhale these particles.

How Dangerous is PM 2.5

These microscopic particles are very dangerous, especially for people having asthma, or bronchitis. These particles can worsen the condition of the patients.

Due to continuous exposure to the PM 2.5 leads to plaque deposits in the arteries. This continuous deposit leads to hardening.

Moreover, these are the main cause of strokes and heart attacks.

Besides, they cause an irritation in the eyes and nose as well. 

On the other hand, sneezing and coughing are a common problem of inhaling these atmospheric aerosol particles.

Constant inhaling of PM 2.5 affects your smooth lung functioning.

The Importance of PM 2.5 Filter

As these particles is very dangerous and hazardous for health, it is important to purify the air. The PM 2.5 filter filters and purifies the indoor air, and we can breathe in fresh and clean air.

It is an impossible task to clean the outdoor air.

However, when it comes to the indoor air, you can clean it with air conditioner and air purifiers.

The ones that use these PM 2.5 filters in ACs improve the air quality inside your room.

These filters are a perfect substitute for HEPA filters. HEPA filters block the airflow and therefore, the evaporator coil freezes.

However, with the PM 2.5 filter, there is no such problem.

There are many reputed Air Conditioner brands such as, Whirlpool, LG, and Carrier, that use this filter.

They claim to purify the indoor air and reduce the chances and risks of respiratory problems.

Pros & Cons

  • Removes the most harmful and smallest of particles.
  • Less expensive if compared to HEPA filters.
  • Nowadays, it is an essential constituent of ACs.
  • Fails to handle impurities less than 2.5 microns.

Wrap Up!

The alarming increase of air pollution, calls for these air filters.

Therefore, it is beneficial for people to have PM 2.5 filters in their home.

It allows you to breathe in the fresh air and improves your health by reducing the chances of respiratory problems.

So, next time when you purchase an air conditioner or air purifier look for this filter.


Vitamin C Filter in Air Conditioner | Working | Usage | Pros & Cons!

What is HEPA Filter? How does it Work? | Explained!


Leave a Comment