Will it clean the air while my AC cools?

Yes. Your AC's fan already pulls all the air in your room through it, again and again, all day long. AIRTH sits on top of your AC and places a coated HEPA filter in that path, so the air that comes out is not just cool, but clean too. There's nothing extra to switch on. It starts working the moment your AC does.

IIT Bombay tested the summer version in a closed room. Within one hour, it removed 93% of smoke particles and cleared PM2.5 about 3 times faster than the AC's own built-in filter. AIRTH has also been tested at IIT Delhi and IIT Kanpur.

The filter also has a special coating that reduced bacteria on it by 99.99% in a TÜV Rheinland test. It's why Taj and over 65,000 homes trust AIRTH for cleaner air.

Will my AC cool less?

Only very slightly, and most people won't feel the difference. AIRTH uses AC-friendly FILTRIX™ HEPA filters, made to let your AC breathe easily while they clean. In summer, you use just one filter instead of two, so air keeps flowing freely into your AC and your room stays properly cool.

We had this checked at an NABL-accredited AC testing lab, using the official Indian standard for measuring AC cooling. Even with a filter that had been used for 3 months, the AC still delivered 96% of its rated cooling.

For the best results, keep your AC's fan speed on Auto or High.

*NABL-accredited lab test as per IS 1391, split AC with a 3-month-used AIRTH filter.

Will my electricity bill go up?

AIRTH itself uses no electricity at all. It has no plug, no motor and no battery. It simply works with the air your AC is already moving, so there's no new machine adding to your bill.

Compare that with a separate air purifier, which runs on its own power for hours every day. By not needing one, you save around ₹4 a day, or about ₹120 a month.

In our lab test, the AC's power use with AIRTH fitted also stayed within the limit its maker rated it for.

*Estimate: 50 W standalone purifier, 10 hrs a day, ₹8 per unit. Lab test: NABL-accredited, as per IS 1391.

Will it damage my AC?

No. AIRTH sits outside your AC, on top of the air inlet grill, held in place by side prongs. There's no wiring, no drilling, and nothing goes inside your AC.

In fact, it protects your AC. AIRTH's HEPA filters are AC-friendly: they clean the air without holding back your AC's performance. And because they catch dust before it gets inside, dust doesn't settle on your AC's cooling coils and fan. A cleaner AC runs smoother, cools better for longer and faces less wear and tear, so it can last longer too. You get cleaner air, and your AC gets looked after.

In our lab test, the AC with AIRTH fitted drew less current than its rated limit, which means it wasn't being overworked.

Fitting takes just a few minutes. When your technician comes for AC servicing, it lifts off in seconds and goes back on just as easily. The metal frame also comes with a lifetime warranty.

Lab test: NABL-accredited, as per IS 1391.

Won't the filter get dirty and choke my AC?

Here's something most people don't know: the thin mesh filter that comes inside your AC is often the real reason ACs lose performance. It clogs with dust quickly, and once it's blocked, less air reaches the cooling coils. Your AC then cools slower and has to work harder. That's why AC mesh filters need cleaning so often.

This is where AIRTH helps. It catches dust before it reaches your AC's mesh filter and internal parts. Even after 8 months of use, AIRTH's filter reduces airflow far less than a dusty AC mesh filter does, so your AC keeps breathing easily through the season.

When it's finally time, just slide out the old filter and put in a new one. No tools and no technician needed.