Is an Air Purifier really Useful? – HepasAir

Is an Air Purifier really Useful?


Are you thinking of getting an air purifier at home, but wondering if its really worth the cost? Or wondering since you already use air conditioners at home, is it still beneficial?

We've prepared a quick breakdown of ALL you'll need to know before you decide to invest in an air purifier.

First of all, what's the difference between air purifiers and air-conditioners (ACs)?

Air purifiers have a very specific purpose, to remove particulates from the air. To serve this purpose, they have a high-efficiency particulate air (HEPA) filter - the only type that removes particulates. 

ACs do not have this purpose and are only built to cool as quickly and affordably as possible. Hence, there is no fresh air coming from it. As a result, whatever activity happens inside an AC room remains there. 

What one person exhales, another inhales! For example, if someone smokes in an AC room, the smoke will keep circulating and can only be purified through an air purifier.


The filter (mostly pre-filter meshes) installed in an AC is to reduce dust from entering the fins and damaging them. The dust in the room contains large volumes of invisible particles that the AC's filter cannot trap.

Some symptoms of waking up in an AC room filled with particulates are nasal blockages, morning allergies, dry coughing and headaches.

If you are someone who is troubled with these or any other allergic conditions, you may consider buying an air purifier for the room.

Did you know an air purifier can also help you save money?

saving money

Continuous AC usage in Singapore commonly results in mold, bacteria and algae. These impurities in the air will pass through the AC and as time goes by, the unit will be clogged and become inefficient resulting in higher utility bills and expensive chemical cleaning.

Having an air purifier in the room would help to disinfect and purify said impurities in the air, reducing the chances of AC units being clogged up and also providing cleaner and healthier air in the room.

Thinking of investing in an air purifier? Here are the 2 most important things to take note of.

1. The most important thing is that the air purifier uses a HEPA filter

HEPA Filters remove 99.97 per cent of 0.3-micron particles. PM10 particles can be trapped by your nose or throat, but PM2.5 particles are so small that they can slip through and lodge in your lungs, causing health problems.

2. Match the air purifier to the size of the room

For most situations, you will want your air purifier to be able to circulate the air in your room 2-5 times per hour. People with family members who smoke or have severe allergies are suggested to stick to 5 air changes per hour.

FYI: Typical HDB bedrooms have 31m3 of air so you would want an air purifier with at least a Clean Air Delivery Rate (CADR) of 155m3 to be able to circulate the air in the room 5 times per hour.

Our recommendation:

If you're looking for a powerful, mid-range air purifier, why not consider our HEPAS Air Purifiers. 

What makes ours different from other purifiers is that our filters not only come with activated carbon, but are H13 HEPA filters, which is a medical-grade air filter commonly used in medical facilities.

And that's not all, our filters are infused with Silver, which acts as a natural anti-bacterial and anti-viral agent for our filters.

Last but not least, our purifiers were touted in chinese newspaper Lianhe Zaobao as the most affordable of its range! 

Find out more here:

hepas air purifier