Air purifiers; air purifying units for domestic use; photon hydroxylation air purifiers; ionization apparatus for the treatment of air; air purification and ionizer devices for removing impurities from air; electric light bulbs; electrical light bulbs incorporating a negative ion emitting device

'air':1,3,11,19,20,29 'apparatus':14 'bulb':32,35 'devic':24,41 'domest':7 'electr':30,33 'emit':40 'hydroxyl':10 'impur':27 'incorpor':36 'ion':39 'ioniz':13,23 'light':31,34 'negat':38 'photon':9 'purif':21 'purifi':2,4,12 'remov':26 'treatment':17 'unit':5 'use':8

CRISPAIR

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