PEAK NASAL INSPIRATORY FLOW METER (PNIF)

Peak Nasal Inspiratory Flow (PNIF) Meter

Peak Nasal Inspiratory Flow (PNIF) Meter is lightweight, compact and a simple way to inspect the patency of a patients nose.

Measurements can be generated from a single inspiratory manoeuvre using both nostrils simultaneously, or by using each nostril in turn, to provide a simple indication of obstruction, although care must be taken due to variability in subject efforts, and the possible effect of nasal valve collapse.

Peak Nasal Inspiratory Flow (PNIF) Meter can be used to quickly assess the patency of a patient’s nose. It is used along with either a disposable or reusable mask, both of which are available in in a range of sizes. 

If the PNIF is to be used by a number of subjects, it can be cleaned between uses or alternatively, this can be avoided by using an antiviral filter between the mask and the PNIF device. A clean mask should be used for each test.

If the PNIF is to be used by only one subject there is no need to change or clean the mask and no need to clean the PNIF or use an antiviral filter

It uses a variable diameter tube calibrated directly in litres per minute (l/min), along with a low inertia indicator ring, whose position after an inspiratory manoeuvre clearly indicates the maximum flow achieved.

It is recommended that an average reading of the best of 3 manoeuvres should be recorded for a subject as care must be taken to allow for variability in subject effort, and the possible effect of nasal valve collapse.

Optional consumables:

• Disposable PNIF small masks
• Disposable PNIF medium masks
• Disposable PNIF large masks
• Re-usable PNIF small masks
• Re-usable PNIF medium masks
• Re-usable PNIF large masks
• Anti-viral filters (to avoid contamination of the PNIF from expiration by the subject)
• Units can be ordered on a one off basis or in larger quantities, please contact Surgical Tools, Inc. for quantity quotations.