The Environmental Protection Agency has conducted numerous studies on indoor air quality. Their findings show that regular cleaning significantly reduces pollutants within a structure. More frequent cleanings are recommended for homes where children and pets are present.

CLEANING FREQUENCY GUIDELINE

Environment:

 

Contaminated Outside, Dusty

Extremely Cold Weather Climates

High Humidity Biogenic

Day Care Center

2 weeks

1 week

2 weeks

1 week

Nursing Home

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, smoking)

4 months

2 months

3 months

4 months

(young children)

6 months

1 month

3 months

4 months

(young children with 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 Establishment

1 month

1 week

2 weeks

2 weeks

Commercial Building

3-6 months

1 month

2 month

2 months

(From – U.S. EPA Letter, January 1989)