Do face masks actually protect you from pollution?
Not every face covering offers meaningful protection against polluted air. What the evidence says about filtration, facial seal, straps, valves and washing.
Not every face covering offers meaningful protection against polluted air. What the evidence says about filtration, facial seal, straps, valves and washing.
A price and specification audit of every portable car air purifier sold in India by a manufacturer or its authorised distributor, checked against the maker's own page on 18 September 2026.
Coverage figures in square feet depend on assumptions makers rarely print. Here is how to work out the CADR your room actually needs, and how the finder does it in five questions.
Measured indoor VOC levels in Indian homes exceed outdoor levels and roughly double in winter, yet most labels disclose almost none of what a product emits. The four ingredient families worth recognising, and what to do about them.
Paints, adhesives, plywood and new furniture off-gas at once, and silica dust travels well beyond the work area. What matters before, during and after a renovation: VOCs, dust, PM2.5 and off-gassing that runs for months.
Breathing rate rises three to five times during exercise, so whatever is in the air gets absorbed proportionally more. What to check before and during a home workout: PM2.5, CO2 and ventilation timing.
Toddlers breathe faster, spend their day at floor level and have lungs still forming alveoli. What actually matters for their air: PM2.5, VOCs, floor-level dust and cleaning products, plus what to do now, set up once and keep watching.
The real capacity numbers behind calcium chloride moisture absorbers, and why they work for wardrobes but not for whole rooms.
Soft furnishings are hidden reservoirs for dust mite allergens, pollen and PM. HEPA-filter vacuuming, encasements, hot washing and humidity control together deliver measurable allergen reductions, backed by peer-reviewed studies.
Most Indian kitchens have a chimney or exhaust fan, but capture efficiency, ducting, mounting height and timing decide whether cooking-time NO₂ and PM2.5 actually leave the room.
Mould needs a surface and moisture. Spores are already indoors, so moisture is the only variable you control. A practical guide for Indian monsoon homes: identification, health risks, and removal for walls, fabric, books, leather, furniture, camera gear and ACs.
Optical sensors in Xiaomi, Philips, Coway, Dyson, Honeywell and Sharp purifiers drift as dust builds up. Here's how to clean each one, by brand, and what accuracy limits remain even after cleaning.
A walkthrough of the Dehumidifier Selector for a Chennai bedroom: why 20 L/day is the right tier, what it means in practice, and which models to consider.
Your purifier says 90. Your weather app says 150. Neither is wrong, they're using different math. Here's exactly how India's and the US's AQI scales diverge, and what to actually track instead.
A walkthrough of the Dehumidifier Selector for a Kolkata living room: why 30 L/day is the right tier, what it means in practice, and which models to consider.
Knowing your city's high-risk months matters, but what you do during those months matters more. A practical guide to reducing pollen and fungal spore exposure indoors and outdoors.
A walkthrough of the Dehumidifier Selector for a Delhi ground-floor home: why 30 L/day is the right tier for mould prevention, what it means in practice, and which models to consider.
A walkthrough of the Dehumidifier Selector for a Bengaluru bedroom: why 10–12 L/day is the right tier, what it means in practice, and which models to consider.
A walkthrough of the Dehumidifier Selector for a Mumbai bedroom: why 20 L/day is the right tier, what it means in practice, and which models to consider.
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.
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.
AC dry mode, Peltier mini-units, coastal-only thinking and silica gel: eight common dehumidifier myths in Indian homes, debunked with numbers.
PM2.5 infiltration, recirculation trade-offs, new-car VOCs and monsoon mould: the science of your car's microenvironment in India.
13 widespread myths about air quality, allergies, BEE ratings, mould, ionisers, and immunity, debunked.
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.
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.
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.
Safe humidity levels, AC dry mode vs standalone dehumidifiers, sizing for Indian rooms, monsoon strategy, electricity costs, and maintenance: answered.
India has two pollen seasons. The monsoon brings fungal spores, not relief, and rising CO₂ is making pollen grains more potent.
We ran all 9 Honeywell Air Touch purifiers through our buying checklist using only honeywellconnection.com. Four models are vetoed for ioniser or UV-C and are not scored; the V1, V3, V5 and P1 lead the scored field at 15/19, and all are out of stock.
Eight eligible Philips air purifiers compared using the current 19-point India buying checklist, with CADR from 250 to 600 m³/h and scores of 14/19 or 16/19.
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%.
Six checklists for reducing VOC exposure in Indian homes, renovation, daily habits, low-VOC product shopping, family protection, seasonal peaks, and greenwashing.
A practical VOC guide for Indian homes: which paints, boards, polishes and cleaners are low-emission, which marks to trust, and what to ask in the shop before you pay.
Efficiency numbers from different test standards are not directly comparable. Here's why, and what it means when brands cite different standards.
We ran all four Coway AirMega models, 150, Aim, Storm and 250, through our buying checklist using only cowayindia.in data. The 150 and 250 score 14/19; the Aim and Storm are vetoed and not scored.
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.
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.
What April 2025 CPCB sensor data from 16 Indian cities reveals when benchmarked against WHO guidelines.
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.
All five Dyson purifiers sold in India run through the buying checklist on dyson.in data only: HushJet HJ10 at 11/14 and TP11, HP11, BP02 and HP12 at 12/14, with the CADR criterion set aside because Dyson tests to its own POLAR method.
Xiaomi's full India range run through the buying checklist: AP4 and AP4 Lite at 16/19, the new Mijia 4 Compact at 14/19, and the flagship Mijia 6 vetoed for UV-C and ionisation.
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.
A practical buying checklist covering CADR sizing, HEPA grades, carbon filters, noise, sensors, ozone safety, filter costs, and after-sales, tailored for Indian homes and pollution levels.
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.
A head-to-head comparison of H13 and H14 filters, efficiency, cost, use cases, and how to decode misleading HEPA labels.
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.
The science of air purifier placement: airflow physics, common mistakes, and 6 principles to get the most out of your purifier.
A breakdown of the 9 major indoor air pollutants, their India-specific sources, and why they matter for your health.
An independent IAQ resource built for Indian homes, covering air purifiers, ventilation, humidity, VOCs and pollen.
Choosing the right air purifier shouldn't be overwhelming. Our comparison engine cuts through the noise so you can breathe easy.