How does Pure Skies work?

Pure Skies are unlike conventional air purifiers or air cleaners which pass air through a filter. Instead, they use a novel omni-directional antenna to generate weak radio waves in a specific pulsed sequence (pulsed radio wave technology). Because radio waves travel over long distances (compared to cell phone towers, Bluetooth, or Wi-Fi), Pure Skies is able to work over a distance. However, these radio waves work at a particular frequency which does not affect other forms of telecommunication. Neither cell phone spectrum nor licensed spectrum are used.

The pulsed radio waves accelerate the velocity of very small particle pollutants ( < 20-30 microns diameter) and aerosols, increasing their clearance through a natural process called dry deposition. In dry deposition, pollutant particles and aerosols coalesce and settle down to the earth's surface. Most of these particles are neutralized through naturally occurring reactions, except for sulphur dioxide (which causes acid rain) and heavy metals.

Pure Skies product lines


Suitable for

Pure Skies 3000

Indoor air quality: Homes, small offices

Pure Skies 5000

Indoor air quality: Medium sized offices and Hotels

Pure Skies 6000

Indoor air quality:

Large buildings, Hotels and factories

Pure Skies 9000

Outdoor air quality

A: Footprint of Pure Skies 6000 and 9000 is 1’x2’. Height is 4’. Weight is 42 kg (Pure Skies 9000). Installation is floor mounting. When used inside a factory, the unit can be mounted on a platform to save floor space.

A. 30 W peak power; average 10 W. Outdoor units are solar powered and provide minimum 72-hour battery backup (tested).

A. The air pollution control unit (Pure Skies) is very robust. The core technology developed in 2008 still works well today and is housed inside an IP65 enclosure (certified). The UPS batteries must be changed every 2-3 years (cost Rs. 1,800/). The IoT hardware must be changed every 5 years (cost Rs. 6,000-8,000). Software updates are sent over the air and are included in the AMC.

The air quality monitor that is part of every Pure Skies system needs regular maintenance to ensure optimal function. Online calibration is done regularly by the manufacturer. Depending on the type of air quality monitor purchased, annual cleaning and calibration will be done either: 1) by a trained technician who visits your site; or 2) the air quality monitor is sent back to the manufacturer for servicing. Sensors inside the air quality monitor must be replaced every 2-4 years; charges are as per actuals. No consumables are required.

AMC cost is approximately 6-10% of product cost, depending on the configuration purchased.

A. Pure Skies is designed for plug and play operation.

For Pure Skies 3000, 5000, and 6000 (indoor), the following are required:

  • One 12A outlet for air pollution control unit (Pure Skies)
  • One 12A outlet for air quality monitor
  • Wi-Fi connectivity for air quality monitor, depending on specifications of the air quality monitor. Others may have an inbuilt GSM, depending on your requirements.
  • For installation inside a plant, we recommend installing the air pollution control unit on a raised platform (1’x2’ footprint; weight 35 kg). The air quality monitor should be installed at a height of 8-15 feet and minimum 30 feet distance away from heavy pollution sources such as welding bays.

For Pure Skies 9000, the following are required:

  • For the air pollution control unit, we recommend a rooftop that is open on all sides. For installation, we recommend the unit be anchored with anchoring bolts on a cement slab poured on the desired location.
  • For the air quality monitor, a height of 12-15 feet above ground, preferably on a pole that is open on all sides. Alternatively, the side of a building or the roof of a ground floor building may be used. This should be 30 feet away from main roads or pollution sources.
  • 2x 12A power connection (single-phase, 220V AC)
  • Both the air pollution control unit and air quality monitor can be solar powered. In such a case no power source is required.
  • UPS/voltage stabilizer are not required.

A. No. Pure Skies will not affect operations inside a factory, industry, or office space. In addition, there is no effect on industrial processes such as painting, buffing, or finishing. We have several use cases in this regard.

A. No. Prior to commercial release, Pure Skies was extensively tested by the co-founder, Dr. Srikanth Sola, and his team at the Sri Sathya Sai Institute of Higher Medical Sciences, Bangalore, from 2008-2018. No adverse effects have been found in infants, children, adults, certain animals (rock bees, migratory birds, fruit bats, and others), water quality in water bodies or bore wells, agricultural output, landscaping, bacteria, or fungi.

A. Pure Skies works by accelerating dry deposition. In nature, these particles agglomerate and settle out of the atmosphere onto the ground or on vegetation. There is no dust or layer of pollutants because: 1) Pure Skies affects only microscopic (not visible to the naked eye) pollutants; and 2) These pollutants are present in the parts per million or sometimes parts per billion concentration – too few to be visible.

A. No. Pure Skies will not affect operations inside a factory, industry, or office space. In addition, there is no effect on industrial processes such as painting, buffing, or finishing. We have several use cases in this regard.

A. The air pollution equipment will last a minimum of 10 years with routine maintenance. This is based on actual testing of the core technology since 2008.