Quest Products Peak Flow Meter

The Quest Peak Flow Meter measures how well your lungs can expel air. You can learn to use this simple device to monitor your asthma and head off attacks before they occur. It is the most accurate peak flow meter in its class, with an accuracy rate of +/- 4 percent, three times better than the industry standard. This medical equipment is designed for use by both children and adults. It has a measuring range from 60 to 810 liters per minute along with two adjustable zone indicators. The meter includes...