How does JustAir provide clean, filtered air and keep contaminants out?
Air flows from high pressure to low pressure areas. When an area is kept at a pressure higher than its surroundings, you have positive pressure. Cleanrooms and bio-labs use positive pressure to push contaminants out by filling them with clean, filtered air. The JustAir system uses the same positive pressure principle. Air is filtered by medical-grade HEPA filters in the blower pack and pushed into the mask to maintain positive pressure. The filters are designed to trap 98% of particulate matter as small as 0.3 microns.
The blower pack is able to provide up to 150 L/min of air through the tubing. For reference, the average breathing rate of someone exercising peaks at about 120 L/Min.