• Variable venturi system to ensure accurate concentrations of oxygen with single unit. • Transparent air entrainment mask with soft anatomical form with easily adjustable elastic strap. • Wide, adjustable strap for proper positioning of mask on the nasal area. • Rotating type connector for patient’s comfort. • Unique spring loaded mechanism locks prescribed concentration in place ensuring safety and correct oxygen concentrations. • 2 Meter multichannel tube is provided to ensure continuous flow of oxygen. • Non-Sterile, individually packed in polybag.