Air purifiers are increasingly vital in households as air quality worsens, especially in urban northern India. The country has many of the most polluted cities globally, with AQI levels reaching alarming heights due to geographical factors and wind patterns, leading to heightened health risks. According to the State of Global Air 2025 report, mortality rates from air pollution in India are nearly ten times greater than in wealthier nations. Given that people spend over 90% of their time indoors, understanding the role of air purifiers in addressing high AQI levels is essential. Dr. Ken Armstrong, Research Director at Dyson, provides insights on selecting the right air purifier. Here are some key considerations before making a purchase.
The ability to eliminate fine and ultra-fine particles is crucial; PM0.1 particles, or ultra-fine particles, can penetrate lung sacs and even enter the bloodstream. The new Dyson Purifier Cool™ PC1 – TP11 features advanced filtration that captures 99.95% of these ultra-fine particles and includes an activated carbon filter for odours, gases, VOCs, and NO2. Its fully sealed filtration system prevents any potential leaks of dirty air back into the environment. The area of coverage and air circulation capability should influence your choice of air purifier, as some only disperse air in a single direction. Dyson’s Purifier Big+Quiet can purify areas up to 1,000 sq. ft. using Cone Aerodynamics for a 10-meter air projection and operates quietly at 56 decibels.
The size and weight of the purifier are also important; lightweight models are ideal for smaller rooms like bedrooms, while larger spaces may require bulkier units that are harder to move. Dyson’s Purifier Big+Quiet has discreet wheels for easy mobility. Noise level is a critical factor since air purifiers are most effective when running continuously. A noisy fan can disrupt sleep or daily activities. The Dyson Purifier Cool™ PC1 – TP11 operates at just 44dBA in night mode, ensuring a tranquil sleeping environment while effectively filtering air pollutants. It also includes a sleep timer that can turn off the device after 1, 2, 4, or 8 hours.
Additionally, many air purifiers come with smart features like auto mode, which adjusts purification levels based on air quality, offering continuous protection without manual adjustments. The redesigned MyDyson™ app enhances user experience, providing access to features and support via smartphone or tablet, allowing you to monitor captured particles, set schedules, and review reports.