NYC 9/11 Public Portal Document
• Terraces & balconies: Who is responsible for cleaning? Is it
safe to clean the terrace if there is a lot of dust? What can I do
If cleaned my terrace but others in my building have not and
the dust blows into my apartment?
Light coatings of dust can be cleaned using wet methods and /or
HEPA vacuums. The DOH has a Cleaning Fact sheet that
describes this and it can be four i at the website at: Large
■ accumulations (completely covered or blanketed) of debris inside or
outside should be assessed by an inspector. Would you like me to
take your name, number and information and forward it to DEP?
B. Cleaning
• Does the Department have any recommendations about which
brands of HEPAvacs + Air Purifiers provide the best safety
features?
No, Information on steps people can take to assist with indoor air
quality and on the selection and purchase of residential air cleaning
devices can be found at the EPA website:
http://www.epa.gov/iaq/pubs/index.html
How can people who live north of Canal St. obtain a free
HEPAvac and/or Air Purifier
At present there does not seem to be any program providing free
cleaning equipment north of Canal
• Technical questions such as: Is an Ionizer as effective as a
HEPA filter? What is the difference between an Avena purifier
vs.aHEPAfilter?
This information can also be found on the EPA website:
www.epa.gov/iaq/pub/ .
• Why are people not routinely recommended to wear a mask
while cleaning?
The wearing of a respirator Is recommended whenever an
individual is expected to be exposed to levels of toxic substances
that may be harmful. Dust/paint masks do not provide protection
from asbestos or fiberglass. In lower Manhattan, people will not be
exposed to such levels as long as they are using wet cleaning
methods, a HEPA vaccum, and not cleaning up areas with visible
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