Did you know that you can use your AC to purify the air in your room? Here's how ~ PARN HARIT

Air Conditioners (AC) are the biggest boon during the summer. But did you know that it can also act as an air purifier? Since pollution levels are increasing in India, most people are looking to buy air purifiers. This has become a big problem in cities like Delhi, Mumbai, Bengaluru, and Kolkata among other cities.

But if you do not have an air purifier and you run the AC for many hours a day, then it can also work as an air purifier for you.

AC can improve air quality

Air conditioners play a vital role in purifying the polluted air. When the machine is used correctly, it not only cools the room but improves the air quality. With proper maintenance, use, and the right features, it can improve the air quality of the room.

Maintenance is one of the most important ways to keep the AC clean. With time, dust and other airborne particles accumulate in your AC filter, which may end up blocking it. Therefore, the filter should be cleaned periodically.

AC filters in most Indian homes should be cleaned every two to four weeks. Meanwhile, weekly cleaning is necessary during stormy seasons.

Coil and duct service

Coils and ducts should also be cleaned annually. If your AC coils and ducts aren't maintained, they can accumulate dust, becoming breeding grounds for bacteria and mold. A technician should be used to clean them once a year. This keeps the system in good condition and prevents pollutants from entering the indoor air.

Simple filters are not enough

Regular AC filters primarily keep dust away from the machine, but if improving indoor air quality is your goal, an upgrade is worth considering. Look for ACs with dust-repellent filters that capture larger particles like dust, pet hair and cotton, while also being easy to clean.

Additional features

Some of the latest AC models include built-in air purification systems. These can improve indoor air quality through features like multi-layer filtration, activated carbon filters for removing pollutants and even UV sterilisation.

That is actually a really smart hack, and a lot of people don’t realize their air conditioner can pull double duty! While a standard AC isn't a complete replacement for a dedicated medical-grade air purifier, it does a surprising amount of heavy lifting when it comes to cleaning the air.

Here is exactly how an AC purifies your room, plus a few tips to maximize its efficiency:

1. How It Works: The Continuous Loop

Every split or window AC works by constantly pulling the existing air out of your room, cooling it, and blowing it back in. Because it operates on a closed loop, 100% of the air in your room is forced to pass through the AC's internal filtration system multiple times an hour.

2. Upgrading to PM2.5 or HEPA Filters

Standard mesh AC filters are designed to catch large particles like dust bunnies and pet hair to protect the internal coils. However, you can easily upgrade your AC's purifying power:

PM2.5 Micro-Filters: Many modern ACs come with or accept optional PM2.5 filter strips. These are electrostatically charged strips that slip over your regular mesh filter to trap microscopic pollutants, smoke, and pollen.
Aftermarket AC Filter Sheets: You can buy affordable, trim-to-fit air purifier sheets (often made by brands like 3M) and attach them directly to your standard AC filter. This essentially turns your AC into a giant, room-sized air cleaner.

3. The Hidden Purifier: Dehumidification

High humidity makes your room a breeding ground for dust mites, mold spores, and airborne allergens. By running your AC (or using its "Dry Mode"), you strip excess moisture from the air. Dropping the humidity below 50% naturally suppresses these allergens, making the air noticeably cleaner and easier to breathe.

💡 Pro-Tips to Maximize Air Quality:

Keep the Fan Running: If the room is already cool but you want to keep purifying the air, switch your AC to "Fan Only" mode. The compressor will turn off (saving electricity), but the fan will keep circulating and filtering the air.
Wash Filters Every 2 Weeks: Because the AC is trapping so much debris, a dirty filter will drastically reduce both cooling efficiency and air purity. Pop the front panel open, rinse the mesh filters under a tap, let them dry, and put them back.
Deep Clean the Coils: Dust and moisture can create a layer of grime on the indoor cooling coils over time. Using an AC cleaning spray or getting it professionally serviced once a year prevents mold from blowing into your room.

PARN HARIT