chemicals containing disinfectants used to clean air conditioning units, refrigeration equipment, and ventilation ducts; chemical cleaning preparations used to clean air conditioning and refrigeration equipment containing industrial detergents

'air':7,21 'chemic':1,15 'clean':6,16,20 'condit':8,22 'contain':2,26 'deterg':28 'disinfect':3 'duct':14 'equip':11,25 'industri':27 'prepar':17 'refriger':10,24 'unit':9 'use':4,18 'ventil':13

chemical cleaning preparations for the unblocking of drains and sinks and plugholes; fragrance gels used to emit fragrances in air conditioning and refrigeration systems

'air':20 'chemic':1 'clean':2 'condit':21 'drain':8 'emit':17 'fragranc':13,18 'gel':14 'plughol':12 'prepar':3 'refriger':23 'sink':10 'system':24 'unblock':6 'use':15

disinfectants for cleaning air conditioning units, refrigeration systems, and ventilation ducts

'air':4 'clean':3 'condit':5 'disinfect':1 'duct':11 'refriger':7 'system':8 'unit':6 'ventil':10

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