The idea for Grovpure started when I was deployed to western Africa with the US Army's Special Forces. Every day we had to deal with intense dust and contamination and were constantly worried about how that was affecting our health.
Exposure related injury is a huge issue for military service members; enormous amounts of veterans are afflicted with cancer, heavy metal toxicity, and other exposure related illnesses.
I decided to set out and design the best and most effective air purifier I could to keep myself and other service members as safe and healthy as possible. The result is the Aspen.
For more information on exposure related issues in the military and how you can help, visit the HunterSeven Foundation.
Clean Air Delivery Rate, or CADR, is the amount of clean air the machine is able to produce for various kinds of contaminants (smoke, dust, and pollen). It is not the same as the maximum air flow of the machine, and is a laboratory measured value.
The Aspen has a smoke CADR of 280 cfm and an airflow of 343 cfm. This allows the unit to exchange the air in a 29’ x 29’ x 8’ room every 20 minutes.
Many manufacturers don't include a unit of measure when they discuss the CADR of their machines, which means it could be anything! Cubic feet per minute (CFM) is commonly accepted in the United States, but many machines are rated using cubic meters per hour. Be careful: cubic meters per hour are 1.7x higher than CFM, so a machine stating that it has a CADR of 300 may actually have a CADR of 175 cfm.
The laser sensor in the Aspen is sensitive enough to detect virtually all particles in the 1, 2.5, and 10 micron size range, ensuring the highest possible performance. Lesser quality sensors simply do not provide good enough performance.
The H13 HEPA filter is a medical-grade air filter capable of removing a minimum of 99.97% particles down to 0.3 microns in size. H13 is the highest tier of HEPA.
The UVC LED operates at a 254nm wavelength, which has been clinically shown to deactivate airborne pathogens. Since the Aspen’s UVC source is LED, it consumes a low amount of power, doesn’t need to be replaced, and does not contain mercury.
The AQI number presented by the Aspen is derived from the laser and VOC sensors which communicate the amount of pollutants in the air. The LED ring clarifies this number for the user: red=bad, yellow=poor, green=good.
When the Apsen is in automatic mode, it increases fan speed to maximum when measured pollutants are high and returns to normal once all contaminants have been removed.
The automatic function works in conjunction with the AQI reading to adjust the speed of the Aspen to most effectively and efficiently clean the air. When the air is clean, the unit runs at an energy efficient speed to gently recirculate the air.
Activated charcoal’s negatively charged, porous texture helps trap toxins and gases in the air and enhances the performance of the filter.
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