Accommodating, Reliable, and Courteous âVinh Le, Fulfillment Manager, SFX America. General Courier initially won our business by providing a very competitive bid. They have kept our business by executing as promised and always being proactive & quick to address any issues that arise. âKevin Webb, Uncle Henry's.
A spirometer that is easy-to-use, accurate, efficient, and cost effective can be one of the best physician office investments available. For proof, take a look at our ROI calculator. The average price of a good spirometer is about $2000. It should last about 10 years and can pay for itself in weeks. Remember, having a higher quality product means less cost in the long run. Today, choosing the right spirometer company is as important as choosing the right spirometer.
The water-seal spirometer is a counterweighted bell inverted into a water reservoir; the bell rises and falls as the patient breathes. Its motion moves either a transducer or a pen that records volume data on calibrated chart paper mounted on a rotating drum (kymograph). The low-friction water seal and counterweight limit resistance and back pressure so that the measurement itself does not adversely affect the patientâs response. In the second type, a dry rolling seal is used instead of water between the bell and its surrounding cylinder. Rolling-seal spirometers are often mounted horizontally to eliminate the need for a counterweight and to minimize the effect of gravity. The âwaterlessâ or Stead-Wells dry-seal spirometer combines the water- and rolling-seal concepts.