Cleaning Frequency Guideline

Environment:	Normal	Contaminated Outside Dusty	Extremely Cold Weather Climates	High Humidity Biogenic
Day Care Center	2 weeks	1 week	2 weeks	1 week
Nursing Homes	1 month	1 month	1 month	1 week
Residence
(2 persons, non-smoking)	6-12 months	2 months	4-6 months	4-6 months
(2 persons with smoking)	4 months	2 months	3 months	4 months
(young children)	6 months	1 month	3 months	3 months
(young children and pets)	3-6 months	1 month	2 months	2 months
Office Building
(ground floor)	3-6 months	1-4 months	2-6 months	2-6 months
(higher floors)	6-12 months	2-6 months	3-9 months	3-9 months
Food Service	1 month	1 week	2 weeks	2 weeks
Establishments
Commercial
(retail shops, banks)	3-6 months	1 month	2 months	2 months