, Author of Cannabis Pharmacy. 1  There are several problems with chewing/dipping cannabis. First, cannabis, in its raw herbal form, can host a wide variety of microbes including e coli and salmonella, both of which can present a health risk.
Oxygenation and ventilation: Once the position and seal are obtained, bagging can commence. The rate of ventilation for an adult is 10-12 breaths per minute or, approximately 1 bag squeeze every 5-6 seconds.4 The bag should be depressed for a full 1-2 seconds and then released.
The same number of squeezes is required as was. necessary to elicit a response in the threshold sensitivity screening test, i.e., 10, 20 or 30 squeezes. 4. To maintain an adequate concentration of aerosol during the test, one. half of the initial number of squeezes should be injected again every 30.