DEP hotline Q&A on HVAC cleaning and debris assessment, n.d.

NYC 9/11 Public Portal Document

should be cleaned using vacuums equipped with HEPA filters and wet methods priori-t© before using the air conditioner. I • How should they be cleaned?

See previous answer.

• How often should filters be replaced?

DEP: This depends on the manufacturer’s specifications and recommendations. Residents should check the filters on a regular basis to determine whether they need replacement

• Can you buy a HEPA filter that will fit into an air conditioner? Some air conditioners are not compatible with HEPA filters.

DEP: We are not aware of any air conditioner brands that can be retrofitted with a HEPA filter.

II HEALTH RELATED ISSUES A. Health Effects

• What is the DOH doing to protect residents’ health? ( Some people report that they have asthma as a result of the air, as well as other symptoms. While symptoms have decreased over the past few months, there remain concerns about coughs, upper respiratory stress, etc.)

The Department along with several other government agencies is performing a number of tasks: monitoring air quality, assessing and mitigating risks caused by asbestos^ontaining material, enforcing the Commissioner’s Order to ensure that all debris loaded Into trucks at the site are wetted down and .covered with tarps, and conducting extensive community outreach and education.

Due to particulate matter and sulfur oxides, there may be temporary airway irritation. The composition of these particles may be alkaline which can result in respiratory Irritation. To date there is no evidence that these symptoms will result In long term health problems. Residents are urged to communicate with their physicians to address health concerns.

• When will the registry be established? Will it study the health effects from environmental exposures?

NYC-WTC_000142762