EPA Form EPA-4G2-K-97-002, October 1997

NYC 9/11 Public Portal Document

MH ill IB-. A it duct cleaning service providers may /A tell you that they need to apply a .I ■ nents (e.g., cooling coils, fans and heat chemical biocide to the inside of your J exchangers) may improve the ducts as a means to kill bacteria (germs) S = •;. efficiency of yi system, resulting in a and fungi (mold) and prevent future bio-. Bl longer operatir life, as well ------ ft I growth. They may also propose energy and me tenance cos jpiication of a “sealant” to prevent IlBBsi However, little evidence exists th ind dirt particles from being cleaning only t no ducts will impit 9 the ,_„_ied into the air or to seal air leaks. .efficiency of th e system. >u should fully understand the pros and cons of permitting application of chemical OU may consider having your air biocides or sealants. While the targeted Y ducts ck iKic of chemical biocidesbi( and sealants sealan' ■■ Imply becc logic ■ be appropriat nder specific wis jeems 3ver time ar ir ducts w be ■ stances, r 1 has not leaned. Pr ed that the cl -...... ............. istrated thi _...:;tiveness in du 'one proper uuiit; iJiufji=niy. nO evidence SUyye&is. aning or their potential adverse hea iftCftftA ; that such cleaning would be detrimental. 3cts, No chemical biocides are (joeg not recommend that the air currently registered by EPA for use in ducts be cleaned routinely, but yas internally-insulated air duct systems (See needed. If a service provider o tiser asserts that EPA recommr IX. cla. 5 about. \ A / hether or not you decide to have the line benefit^ or duct cioaninq its health makes you should e ERA ■ V V air ducts in your home cleaned, pre- 3oklet). 2=; (see address at the back of this-------- venting water and dirt from entering ^1?, EPA does, however, recommend that ifH the system is the most effective way you have a fuel burning furnace, stove to prevent contamination (See page ■ 2 or fireplace, they be inspected for proper 11). 'i ‘•inctioning and srviced before each heating season to pa„EPA.s,AQ,NFOa.,BOO,43^18 •otect against carbon monoxide poison-. for more u.o, r.i,., ■> i d.i .1 kloor air quality.

If you do decide to have your air ducts bbb,

1-2 cleaned, take the same consumer pre-, cautions in« the. you normally would in assess- f, nr/M/iHor’e /'r.mncteinr.Q A BlW ; ‘ ing the service provider’s competence . , r?-;- aiid.reliability ■ Jft'' -- . ... T'.,..;®. .'X'A* ..... '

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