Diwali 2025: Expert shares tips on how one can maintain cleaner, healthier air indoors

Tips on how one can maintain cleaner, healthier air indoors (Picture Credit: Unsplash)

The festive season is here. A time for warm gatherings, cheerful decorations, and the familiar aroma of mithai in the air. But amidst all the sparkle, have you stopped to think about the air you’re breathing inside your home? With rising pollution levels and smog cloaking the city skies, it’s not just the outdoors you should be wary of. Yes, pollution has found its way into your drawing rooms and bedrooms too. From invisible dust particles to pesky allergens, the air within your home can often be just as harmful as what’s outside.

But don’t fret. With a few thoughtful changes and some good old-fashioned discipline, you can enjoy a home that’s not only festive but also fresh and healthy. Stuart Thompson, an expert engineer at Dyson, shared a handy checklist that every homemaker should keep in mind this season.

7 Simple Steps for Cleaner Indoor Air

Leave the shoes at the door: It may seem like a small thing, but it makes a huge difference. “Outdoor dust and dirt ride in on the soles of our shoes,” says Thompson. A sturdy doormat and a polite house rule—shoes off at the entrance—can stop pollutants in their tracks. After all, you wouldn’t want the city’s grime settling on your carpets.

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Invest in an air purifier: Today’s purifiers come with HEPA filters and can remove up to 99.95% of airborne nasties. If anyone in your home suffers from allergies or asthma, this could be a true blessing. Choose one with intelligent features that adjusts based on air quality.

Change the filters: An air purifier is only as good as its filter. A clogged, dirty one is like a sponge past its prime—useless! Thompson reminds us to check and replace them regularly. Mark a reminder on your kitchen calendar if you must!

Rethink those cosy carpets: Yes, they’re snug underfoot during winter and lend charm to any room, but carpets can also be a playground for dust mites and pollution. If you have little ones crawling about, consider switching to wooden flooring or washable rugs. Health before aesthetics!

Watch what you spray: Many household cleaners and air fresheners contain strong chemicals known as VOCs (volatile organic compounds). These can linger in the air and irritate the lungs. During this season, opt for milder, fragrance-free alternatives or even old-school vinegar and baking soda solutions.

Shut those windows: It sounds counterintuitive, but during peak pollution hours, it’s best to keep the windows closed. Early morning smog or post-cracker evenings can bring in more harm than good. “Ventilate wisely,” says Thompson. “Choose times when the air is clearer, and use exhaust fans to keep things fresh indoors.”

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Clear the clutter: A tidy home isn’t just pleasing to the eye—it’s easier to clean and traps less dust. Piles of books, unused knick-knacks, and overcrowded corners are magnets for allergens. Take a cue from the season of renewal and do a gentle decluttering. Your lungs (and your housekeeping routine) will thank you.

FAQs on how to maintain good air quality indoors:

1. What are the main causes of poor indoor air quality?

Common sources include:

Dust, pet dander, and pollen

Mold and mildew from damp areas

Chemicals from cleaning products, paints, and furniture (VOCs)

Poor ventilation and high humidity

Smoke from cooking or candles

2. How can I improve air circulation in my home?

To enhance airflow:

Open windows and doors regularly (weather permitting)

Use exhaust fans in kitchens and bathrooms

Install or upgrade mechanical ventilation systems

Keep interior doors open to promote air movement

3. Do indoor plants help purify the air?

Some plants can slightly improve air quality by absorbing certain toxins and releasing oxygen. However, their impact is limited. To significantly improve air quality, combine plants with good ventilation and air purifiers.

4. How often should I change my air filters?

It’s recommended to:

Change HVAC filters every 1–3 months

Clean or replace air purifier filters according to manufacturer guidelines

Regular filter maintenance helps trap dust, allergens, and pollutants effectively.

5. Are air purifiers worth it for maintaining indoor air quality?

Yes—especially if you have:

Allergies or asthma

Pets

Smoke or pollution concerns

Choose a purifier with a HEPA filter for the best results, and ensure it’s appropriately sized for your space.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.