Gas sensors for measuring gas concentration, air quality measurement apparatus being particle counters and temperature sensors; fire warning devices, namely, fire alarms

'air':7 'alarm':22 'apparatus':10 'concentr':6 'counter':13 'devic':19 'fire':17,21 'gas':1,5 'measur':4,9 'name':20 'particl':12 'qualiti':8 'sensor':2,16 'temperatur':15 'warn':18

Apparatus for ventilating and sanitary purposes for use in commercial kitchens, namely, an integrated control system comprising primarily of CO2 detectors, air quality measurement apparatus in the nature of particle counters, air temperature sensors, and also including ventilating supply and exhaust fans

'air':22,32 'also':36 'apparatus':1,25 'co2':20 'commerci':10 'compris':17 'control':15 'counter':31 'detector':21 'exhaust':41 'fan':42 'includ':37 'integr':14 'kitchen':11 'measur':24 'name':12 'natur':28 'particl':30 'primarili':18 'purpos':6 'qualiti':23 'sanitari':5 'sensor':34 'suppli':39 'system':16 'temperatur':33 'use':8 'ventil':3,38

HALTON AIRWATCH

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