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Allergy experts recommend using a vacuum cleaner with a HEPA filter.
Unlike membrane filters, HEPA filters do not rely on the action of sieves or strainers, which only catch anything larger than a certain size.
One safety feature designed to keep germs contained is having air constantly flow only into the lab, then out through specially designed HEPA filters.
The air purifying respirator uses a blower to force air through a HEPA filter.