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The Effect of Vacuum Cleaning
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represents the number of dust particles less than
0.5 micron present in 1m3 of room air.
This research was carried out by Ilmari Lindgren,
M.D by the Helsinki University of Allergy Hospital
in Finland. |
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| General Medical Practitionists agreed that dust particles less than 0.5 micron are more harmful than the larger dust particles. Normal vacuum cleaners increase the amount of harmful dust particles in the room air. After 1 month with Puzer central vacuum cleaning system the room air was fresh, clean and healthy. |
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PV Vacuum Engineering Pte Ltd
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21 Marsiling, Industrial Estate Road 9, Singapore 739175
Tel : 6755 6169 Fax : 6755 2801
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