Vitalograph asma 1
♦ Measures PEF and FEV1
♦ FEV1 has less diurnal variability and is less effort dependent than PEF
♦ Displays % of personal best for both PEF and FEV1
♦ PEF and FEV1 zones can be personalised
♦ Automatically assesses test quality
♦ Automatically stores best values
♦ Large, easy to read display
♦ Stores 600 test sessions
♦ Suitable for use in clinic with SafeTway mouthpieces
♦ Uses long life AAA batteries
♦ Easy to clean mouthpiece and flowhead
♦ Language independent
Here you find the leaflet of the Vitalograph asma 1
Designed for a comfortable fit, attractively priced, completely disposable. International spirometry guidelines recommend the use of disposable noseclips during spirometry testing. 
The low cost, low resistance SafeTway mouthpiece allows entry of expired air into the measuring system, but not back to the test subject. This simple, yet effective patented design prevents concerns of accidental inhalation of pathogens. The SafeTway is an inexpensive alternative to the bacterial viral filter for expiratory only testing. It fits most pulmonary function test equipment, including peak flow meters. An adaptor may be required. 
Single-use disposable cardboard mouthpieces are no longer recommended for spirometry testing. A special outer coating prevents lip sticking and consequent bleeding. 
Unlike barrier filters which trap expectorated matter whilst allowing viruses and bacteria to pass through, Vitalograph filters use an electrostatically charged material that traps expectorated matter plus bacteria and viruses for highly effective protection against cross contamination. In addition to the hygiene benefits of using bacterial viral filters they also support productivity in pulmonary function testing by reducing the time spent cleaning and sterilising test equipment.