EPA Form EPA-4U24, October 1997

NYC 9/11 Public Portal Document

I e research suggests that cleaning 1*1 t* nd I'** s st moo ** A ir duct cleaning service pr >**• t©llyou'ltiatthsy nosdto'*» ill nents (e.g., cooling coils, fans and heat chemical biocide to the Inside5^^^f^,rfwnw» exchangers) may improve the • i \ - .ductsas arheansto killbacte * ' ' ' bWIISH" SSSMsrO^ energy and maintenance cost savings.'^ ,;• asXirt.... ...IBkd ■....... 3 However, little evidence exists that dust and dirt particles from being/'</.../ .. cleaning only the ducts will improve the efficiency of the system. >foS^ldWu?S5^«3^e’^^ cons ofpermitting application of che , I \Z OU may consider having your air biocides or sealants. While the -targeted I fiucts cleaned simpiy because It TO toa'^rl^wSr8^^®^ seems logical that air ducts will get dirty HS research has not drXmstanoes, - .'. over time and should be occasionally cleaned. Provided that the cleaning is demonstrated their effectiveness jn.-duct .. .' . cleaning or their potential adverse health Sr«2i%«i5; ‘S8^ _____ es not recommend that the air .......... -_ _____ offprtc Nn rhpmiml hinridpq nm currently registered by EPA for use in ' ' • ' '

ducts be cleaned routinely, but only as : internally-insulated air duct systems (See".■ ’• needed, if a servrce provider or adver- tine d^^cleaning or m'^STO about page 13). ;: y ,', \ A / bother or not you decide to have the a I its health benefits, you should write EPA V V air ducts in your home cleaned, pre- (see address at the back of this booklet). venting water and dirt from entering y^"X?iKf^S 55.* or fireplace, they be inspected for proper 11). functioning and 3 serviced before each heating season to gl EPA’slAQINFO at

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!|J If you do decide to have your air ducts I cleaned, take the same consumer pre cautions you normally would in assess- ing the service provider’s competence H ? "b and reliabilityc lillii i® bi

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