Humidifiers; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air exchangers for cleaning and purifying air; Air filtering installations; Air filtering units; Air purification units; Air purifiers; Coffee filters not of paper being part of electric coffee makers; Coffee percolators, electric; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters for water filtering apparatus; Laundry dryers, electric; Lighting fixtures; Robotic air purifiers for household purposes

'air':2,7,15,21,22,25,28,31,58,73 'apparatus':66 'clean':3,18 'coffe':33,42,44 'contain':5 'dryer':68 'electr':41,46,69 'exchang':16 'fibrous':47 'filter':8,14,23,26,34,48,62,65 'fixtur':71 'fluid':61 'general':51 'household':76 'humidifi':1 'industri':52,60 'instal':24 'laundri':67 'light':10,70 'maker':43 'media':49 'paper':37 'part':39 'percol':45 'photocatalyt':13 'purif':29,56 'purifi':20,32,74 'purpos':77 'robot':72 'ultraviolet':9 'unit':4,27,30 'use':53 'water':64

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