Abstract: A system for providing clean air environments for sleeping, resting, working or exercising in order to provide relieve and therapeutic benefits to people with bronchial asthma and respiratory allergies, such system comprising of a tent or stationary enclosure, an air-pumping device and a HEPA filter that removes dust, bacteria and allergens from air entering tent or enclosure; the air-pumping device can be installed in two different configurations: in air-supply or air-removal mode, in both providing necessary ventilation and supply of clean air for breathing.