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How to Measure Humidity in a Room

How to measure indoor humidity accurately using a digital hygrometer. What to look for, where to place it, when to measure, and what the numbers mean for Indian homes.

2026-06-04

How to Reduce Humidity in a Room

Practical ways to reduce humidity in Indian rooms without AC, during monsoon, and with a cooler. This post covers some of free and low effort fixes, ventilation timing, and when a dehumidifier actually helps.

2026-06-03

8 Dehumidifier Myths Explained

AC dry mode, Peltier mini-units, coastal-only thinking and silica gel: eight common dehumidifier myths in Indian homes, debunked with numbers.

2026-06-02

Car Cabin Air Quality: What the Research Says About the Air You Breathe While Driving

PM2.5 infiltration, recirculation trade-offs, new-car VOCs and monsoon mould: the science of your car's microenvironment in India.

2026-06-01

Common Myths About Air Conditioners in Indian Homes

13 widespread myths about air quality, allergies, BEE ratings, mould, ionisers, and immunity, debunked.

2026-05-26

Pollen & Spore FAQs for India: City Windows, Monsoon Risks and What Actually Helps

Answers to the most-asked questions on Indian pollen seasons, city-by-city windows, monsoon fungal spores, thunderstorm asthma, and why rising CO₂ is making allergies worse.

2026-05-23

Running in Summer? Here's How to Use Heat Stress Data

Temperature alone doesn't tell you how your body will handle a run. Learn how to use real heat stress data to train smarter and safer during summer.

2026-05-22

Temperature Says 38°C. But Should You Actually Go Outside?

Why the number on your weather app isn't telling you the full story. How UTCI measures real thermal stress, and how HeatLens helps Indian families, outdoor workers and delivery partners make safer decisions.

2026-05-21

Dehumidifier FAQs for Indian Homes: Everything You Need to Know

Safe humidity levels, AC dry mode vs standalone dehumidifiers, sizing for Indian rooms, monsoon strategy, electricity costs, and maintenance: answered.

2026-05-20

Pollen Season in India Is Not What You Think It Is

India has two pollen seasons. The monsoon brings fungal spores, not relief, and rising CO₂ is making pollen grains more potent.

2026-05-15

Honeywell Air Touch Range: Buying Checklist Walkthrough

We scored all 9 Honeywell Air Touch purifiers on our 20-point buying checklist using only honeywellconnection.com. Two models have ionisers. Four have UV-C LED. All are currently out of stock.

2026-05-06

Philips PureProtect Quiet 2200: Buying Checklist Walkthrough

Philips PureProtect Quiet 2200 AC2220/60 scored 16/20 in our India buying checklist: CADR 420 m³/h, 13 dB sleep mode, and clear ozone safety claims.

2026-04-23

Stale Air Smells. But Not All of It.

Our nose catches smell from mould and bacteria, but misses CO₂ and odourless VOCs that build up in closed Indian rooms in just a couple of hours, dropping cognitive performance by 15–50%.

2026-04-21

VOC Reduction Checklists

Six checklists for reducing VOC exposure in Indian homes, renovation, daily habits, low-VOC product shopping, family protection, seasonal peaks, and greenwashing.

2026-04-14

VOCs: What They Are, Who They Harm, and What to Do

VOCs, invisible chemicals from paint, furniture, cleaning products, and incense, build up silently inside your home. Here is what they are, who is most at risk, and what you can actually do.

2026-04-12

HEPA Filter Test Standards Comparison: EN 1822 vs DIN 71460-1 vs IEST-RP-CC001.7 vs JEM1467

Efficiency numbers from different test standards are not directly comparable. Here's why, and what it means when brands cite different standards.

2026-04-05

Coway AirMega Range: Buying Checklist Walkthrough

We scored all four Coway AirMega models, 150, Aim, Storm, 250, on our 20-point buying checklist using only cowayindia.in data. Some models tell you a lot. One tells you almost nothing.

2026-04-01

Indoor vs Outdoor Air Pollution: What's the Difference and Why It Matters

A plain-language comparison of indoor and outdoor air pollution, sources, pollutants, health risks, and what WHO research says about which one poses a greater everyday risk.

2026-03-31

Should I Open My Windows Right Now?

Most of us decide by instinct. But if you live in an Indian city, instinct isn't enough. Our Ventilation Guide balances outdoor AQI and indoor CO₂ so you don't have to.

2026-03-30

What Does India's Air Actually Look Like in April? We Checked 41 CPCB Stations Across 16 Cities.

What April 2025 CPCB sensor data from 16 Indian cities reveals when benchmarked against WHO guidelines.

2026-03-25

Let's Clear the Air on Air: An E-Primer on Air Pollution for Schools by CSE India

A free educational resource by CSE India that makes air pollution easy to understand, aimed at school students, teachers, and school communities in the Indian context.

2026-03-21

Dyson HushJet™ Purifier Compact (HJ10): Buying Checklist Walkthrough

We ran Dyson's only current India purifier through our 20-point buying checklist using dyson.in data only. Score: 14/20. Promising machine, too many data gaps.

2026-03-20

Xiaomi Air Purifier 4 vs 4 Lite: A Buying Checklist Case Study

A real-world walkthrough of the 8-point buying checklist using two of India's most popular budget air purifiers, with verdicts, watchpoints, and coverage area data.

2026-03-17

Do I Need an Air Purifier in Summer in India?

From Rajasthan dust storms to ozone build-up in Bengaluru, why Indian summers come with their own air quality challenges, and what kind of purifier actually helps.

2026-03-16

Air Purifier Buying Checklist for Indian Homes: 8 Checks Before You Buy

A practical 8-point checklist covering CADR sizing, HEPA grades, carbon filters, noise, sensors, ozone safety, filter costs, and after-sales, tailored for Indian homes and pollution levels.

2026-03-15

Construction Dust Pollution in India: Health Risks You Can't Ignore and How to Protect Your Family

What construction dust actually contains, what it does to your body, how it affects Indian cities, and 11 practical tips to protect your home and family.

2026-03-04

HEPA 13 vs HEPA 14: Which Filter Do You Actually Need?

A head-to-head comparison of H13 and H14 filters, efficiency, cost, use cases, and how to decode misleading HEPA labels.

2026-03-03

Air Purifier Intake & Output Geometries: What They Are and How to Choose

Why the shape and direction of your purifier's intake and output matters more than most people think, with diagrams, product tables, and room-type recommendations.

2026-03-03

Where to Place Your Air Purifier for Maximum Effect

The science of air purifier placement: airflow physics, common mistakes, and 6 principles to get the most out of your purifier.

2026-02-06

Know Your Indoor Air: 9 Pollutants That Matter

A breakdown of the 9 major indoor air pollutants, their India-specific sources, and why they matter for your health.

2026-02-04

Why indoorair.guide Exists

An independent IAQ resource built for Indian homes, covering air purifiers, ventilation, humidity, VOCs and pollen.

2026-02-02

Find the Perfect Air Purifier in Minutes

Choosing the right air purifier shouldn't be overwhelming. Our comparison engine cuts through the noise so you can breathe easy.

2026-02-02