PEAK NASAL INSPIRATORY FLOW (PNIF) METER Product Information The GM Instruments PNIF is a simple, portable inspiratory flow meter, which measures PNIF (peak nasal inspiratory flow) through the nasal passage; providing information of nasal obstruction. Objective measurement of nasal obstruction is useful in the diagnosis of a number of conditions and establishing efficacy of nasal decongestants. Considered as an inexpensive alternative • Measures inspiratory flow through the nose • Accurate assessment of nasal congestion • Individually calibrated • Can be used during assessment of allergic rhinitis Technical Specification: Dimensions Weight Measurement Range Accuracy Repeatability 158 x 44mm – w/o mouthpiece 299 x 138 x 106mm – with mask 131g (with mask) 30 - 370 L/min 10% or ±10 L/min Product Codes: PNIF with Medium mask Single use Child Mask for PNIF Meter Single use Adult Mask for PNIF Meter Reusable Child Mask for PNIF Meter Reusable Adult Mask for PNIF Meter GM Instruments Ltd. Greig House, Annickbank Campus, Annick Road, Irvine KA11 4LF  United Kingdom Your Loca