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Meet the startups fighting air pollution

ET Online|
Beat that pollution
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Beat that pollution

It is that time of the year again when air pollution has started hogging the headlines. Blame it on stubble burning, general quality of the air worsening and Diwali, people living in north India are again going on a shopping spree to buy, not just dresses, jewelry and gifts but also anti pollution masks and air purifiers alike. Given the fact that particulate matter measuring 2.5 microns is the most harmful component of air pollution, a city-based startup has come up with a unique device that can be attached to the exhaust pipes of vehicles to convert PM2.5 particles into coarser dust using magnetic energy. The inventors of "-2.5" device said they have met Delhi transport minister Satyendar Jain for a possible collaboration. "If fitted on the tailpipe of one car, it could potentially neutralise pollution emitted from 10 cars or equivalent pollution from biomass burning or factory chimneys in its vicinity. If mounted on all public vehicles in the city, foul air could be cleared forever," the startup claimed. (TNN)

PTI
Nanoclean: A breath of fresh air
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Nanoclean: A breath of fresh air

A chance visit to a Delhi mall in December 2015 sparked off the idea for three IITians to come up with a sustainable solution for better air. It was essentially the insertion nasal filter devices being used at a stall that got them brainstorming on a new and more 'çomforting' way to breathe easy. Nanoclean uses nanotechnology and creates nasofilters to make clean air a priority for city dwellers created a strong niche for itself in the market. Billed as a company which offers solutions to curb pollution and promote better health, their products boast of being high on the tech and design quotient. Founded by IIT grads Prateek Sharma, Tushar Vyas and Jatin Kewlani in February 2017, the nasofilters - which can be worn externally on the nose - help to prevent pollutants from seeping in. These are priced at a very affordable cost of Rs 10 per unit which was a conscious strategy even though a similar product in the US would be no less than Rs 100. (Neha Dewan/ET Online) (In Pic: The team: (L to R) Jatin Kewlani, Tushar Vyas and Prateek Sharma)

Agencies
The helmet that purifies the air
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The helmet that purifies the air

Shellios, a Delhi-based startup, claims to provide a biker-friendly solution to beat air pollution. The company has designed a helmet with an in-built air purifier. The helmet comes with a Bluetooth-enabled app that lets the rider know when the helmet requires cleaning. It has an air purifier on its back, and picks up all smoke coming from outside. The purifier's mechanism cleans the air that enters so that the biker can breathe fresh air. The cleaning unit itself is battery-operated and carries a 2600 mAh unit that can be charged via a micro-USB port on the helmet. The helmet follows all the standards kept by the government, is around 1.6 kg in weight. (Pic: Shellios/Facebook)

Agencies
A clean way to cook
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A clean way to cook

Greenway provides modern replacements for traditional mud stoves (chulhas) delivering 65% fuel savings and 70% smoke reduction while working on all solid biomass fuels. Using a traditional mud stove for an hour is equivalent to smoking 20 cigarettes along with eye, skin irritation and other ailments. Due to inefficiencies, traditional stoves require copious amounts of fuel, typically firewood for which communities often have to cut trees damaging flora and fauna. Emissions from these stoves are a significant contributor to climate change. Cooking on traditional mud stoves (indoor open fires) using biomass is a global problem affecting our health, productivity and the environment. Greenway makes stoves with their patented air regulation technology, which minimises noxious emissions leading to better health, savings, environmental benefits and everyday convenience. This is a single-burner, high efficiency cookstove that works on solid biomass fuels like wood, dry dung, crop waste, coconut waste and bamboo. (Pic: Greenway/Facebook)

Agencies
Devic Earth breathes new life into fight against pollution
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Devic Earth breathes new life into fight against pollution

This green-tech company co-founded by Srikanth Sola, claims to improve air quality better than any existing technology available today. According to the company, it can improve air quality index "by 33%" by reducing pollutants that are damaging to human health, including particulate matter (PM10 and PM2.5), nitrogen oxides (NOx), and sulfur dioxide (SO2). "We have developed three variations of the product thus far - a smaller version for homes, a medium-sized one for large indoor spaces like offices and hotels, and our flagship series, meant for cities as well as large factories," says Sola. Buoyed by funding from Ministry of Environment, Forest and Climate Change, Sola dove headlong into research that eventually advanced the development of the Pure Skies systems. The Central Pollution Control Board also came in and gave Sola and his team their technical and scientific expertise. This was followed by funding from Honeywell Industries and the prognoses looked good. The company utilizes radio waves - the kind that emerges out of a radio tower used to run televisions in olden days. But unlike a TV which is always broadcasting, Devic Earth pulses the signals periodically - say 10 or 15 per second - to accelerate miniscule particles in the air to make them settle out faster. (ET Online)

BCCL
Fighting indoor pollution
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Fighting indoor pollution

Targeting indoor pollution, BreatheFresh sells units of its air-purifying bags called Vayu Natural, the bag is the size of a desk calendar and contains activated charcoal that absorbs indoor pollutants and allergens. The bag can last up to six months and then be recharged by letting it sit in the sun for an hour. They use 3-Layer technology which gives 3x extra power, strength and durability. Specifically designed to remove maximum odors, excess moisture and pollutants of different particle size typically found in homes. Vayu Natural Air Purifying Bags contains eco-friendly polyurethane filters designed to hold heavy particles like smoke etc. (Pic: BreatheFresh/Facebook)

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