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Can I apply a product using a method that is not specified in the directions for use?
List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. Any time you use an EPA-registered disinfectant, you should read the product label and follow the directions, including the method of application…
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How do the different parts of particulate matter (PM) fit together?
The various parts of PM in the NEI are related as follows. PM10-FIL > PM25-FIL because PM10-FIL includes PM25-FIL PM25-PRI = PM25-FIL + PM-CON This equation only applies at the process level. Because some sources only can report PM2.5 (due to test method differences), this equation does not apply to…
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How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?
Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…
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Will an Ozone Generator protect me and my family from COVID-19?
No, do not use ozone generators in occupied spaces. When used at concentrations that do not exceed public health standards, ozone applied to indoor air does not effectively remove viruses, bacteria, mold, or other biological pollutants. Visit the Centers for Disease Control and Prevention's website for best practices to protect…
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Do disinfectants kill newer variants of coronavirus?
List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. Yes, EPA expects all products on List N to kill all variants of SARS-CoV-2. Genetic changes to the virus do not impact…
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Can air cleaning devices that use bipolar ionization, including portable air cleaners and in-duct air cleaners used in HVAC systems, protect me from COVID-19?
Bipolar ionization (also called needlepoint bipolar ionization) is a technology that can be used in HVAC systems or portable air cleaners to generate positively and negatively charged particles. Provided manufacturers have data to demonstrate efficacy, manufacturers of these types of devices may market this technology to help remove viruses, including…
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Will running an evaporative cooler (sometimes known as a "swamp cooler") or whole-house fan help protect me and my family from COVID-19?
Both evaporative coolers (or "swamp coolers") and whole-house fans can help protect people indoors from airborne transmission of COVID-19 because they increase ventilation with outside air to cool indoor spaces. Evaporative coolers are used in dry climates. They use water to provide cooling and increase relative humidity indoors. When operating…
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Where can professionals who manage school, office, and commercial buildings get information on ventilation and filtration to respond to COVID-19?
Professionals who operate school, office, and commercial buildings should consult the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) guidance for information on ventilation and filtration to help reduce risks from the virus that causes COVID-19. In general, increasing ventilation and filtration is usually appropriate; however, due to the…
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Will an air cleaner or air purifier help protect me and my family from COVID-19 in my home?
When used properly, air purifiers can help reduce airborne contaminants including viruses in a home or confined space. However, by itself, a portable air cleaner is not enough to protect people from COVID-19. When used along with other best practices recommended by the Centers for Disease Control and Prevention, operating…
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If a company has several legal entities, does each entity have to become a certified firm?
Answer: Yes, if the corporate structure is such that the parent company is not liable for actions of the separate legal entities. Question Number: 23002-18225 Find a printable PDF copy of all frequent questions pertaining to lead .
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My non-profit organization applies for and receives grants to renovate older homes. We do not perform the renovations ourselves, we hire renovation contractors to perform them on our behalf. Must my non-profit organization become an RRP-certified firm?
Answer: Yes, even though your organization's employees do not actually perform the renovation activities, your organization must be an RRP-certified renovation firm because your organization, through the grant process, is offering to perform renovations for compensation, i.e., the grant. Question Number: 23002-19775 Find a printable PDF copy of all frequent…
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I am a facilities manager for a church with daycare and preschool programs. I recently became a certified renovator. If my staff and I do our own painting and remodeling work, do we need to be a certified firm?
Answer: Yes, if you perform, offer, or claim to perform renovations in a portion of the building that is a child-occupied facility. The RRP Rule defines a child-occupied facility as a building, or portion of a building, constructed prior to 1978, visited regularly by the same child, under 6 years…
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If the demolition, cleanup, and cleaning verification portion of a renovation project is performed under the direction of a certified renovator using trained workers, can uncertified workers complete the job if further disturbance of paint will not occur?
If the demolition, cleanup, and cleaning verification portion of a renovation project is performed under the direction of a certified renovator using trained workers, can uncertified workers complete the job if further disturbances of painted surfaces will not occur? For example, a certified firm establishes containment and removes wall and…
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Must maintenance workers at kindergartens and elementary schools become certified renovators if they perform renovations covered by the RRP Rule? Are the schools or school systems then required to become certified renovation firms?
On or after April 22, 2010, all renovations covered by the Lead Renovation, Repair and Painting (RRP) Rule must be directed by certified renovators and must be performed by certified renovators or individuals trained by a certified renovator. The RRP rule requires any firm, including a local government agency that…
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What is included in the emissions “Tiers”?
The Tiers are assigned by a Source Classification Code (SCC), which has the most detail about the emissions processes that generate the emissions. The full list of SCCs, their associated Tiers, and the SCC descriptions is available online at https://ofmpub.epa.gov/sccwebservices/sccsearch/ .
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