Discuss the comparative advantages and disadvantages of using a vacuum cleaner to exhaust toxic aire contaminants by placing the hose intake close to the source of the contaminant
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Discuss the comparative advantages and disadvantages of using a vacuum cleaner to exhaust toxic aire contaminants by placing the hose intake close to the source of the contaminant
Discuss the comparative advantages and disadvantages of using a vacuum cleaner to exhaust toxic aire contaminants by placing the hose intake close to the source of the contaminant