l mean from trafic streans

Leave your windows closed, change your furnace filters on a regular basis, and get an air purifier for your home.

This would work for u like it did for me. According to the EPA, indoor air pollution is not caused by what is outside, but what u use to clean with.

Check these studies out.

October, 2007: Home Spray Cleaners Could Raise Asthma Risk:
Spritzing just once a week boosted odds by 50%, study found
U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894
National Institutes of Health | Department of Health & Human Services
''Cleaning sprays, especially air fresheners, furniture cleaners & glass cleaners, had a particularly strong effect. The risk of developing asthma increased with the frequency of cleaning & number of different sprays used, but on average was 30 to 50 percent higher in people regularly exposed to cleaning sprays than in others,'' said the study is lead author, Jan-Paul Zock, a research fellow at the Centre for Research in Environmental Epidemiology at the Municipal Institute of Medical Research in Barcelona, Spain.
''Cleaning compounds r generally just tested to make sure that they do not kill people or cause cancer,'' noted Dr. David Rosenstreich, director of the division of allergy & immunology in the department of medicine at Montefiore Medical Center & Albert Einstein College of Medicine in New York City. ''But, these products may not be safe for asthmatics to breathe in. And, if it is not safe for asthmatics, it is probably not safe for anyone else,'' he said.
US Department of Health & Human Services
http://healthfinder.gov/news/newsstory.aspx?docID=609089

MEDLINE Plus March, 2007: Association between personal exposure to volatile organic compounds & asthma among US adult population.
Division of Health Services Research, Department of Family & Community Medicine, Texas Tech University Health Sciences Center, 3601 4th St, STOP 8161, Lubbock, TX, 79430, USA
Quote: OBJECTIVES: There is growing concern about adverse respiratory health effects from exposure to indoor air pollution. The purpose of this study was to analyze association between exposure to volatile organic compounds (VOC) & asthma in adults. CONCLUSION: In this cross-sectional study of a representative sample of the US population, environmental exposures to VOCs, especially aromatic compounds, were associated with adverse respiratory effects.
PMID: 15633477 [PubMed - indexed for MEDLINE]
http://ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=15633477&ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVAbstractPlus

June, 2006: Cleaning products & air fresheners: emissions & resulting concentrations of glycol ethers & terpenoids.
Atmospheric Sciences Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Quote: PRACTICAL IMPLICATIONS: While effective cleaning can improve the healthfulness of indoor environments, this work shows that use of some consumer cleaning agents can yield high levels of volatile organic compounds, including glycol ethers--which r regulated toxic air contaminants--and terpenes that can react with ozone to form a variety of secondary pollutants including formaldehyde & ultrafine particles. Persons involved in cleaning, especially those who clean occupationally or often, might encounter excessive exposures to these pollutants owing to cleaning product emissions.
PMID: 16683937 [PubMed - indexed for MEDLINE]
http://ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16683937&query_hl=4&itool=pubmed_docsum

l bought the ShackRabbit Guide to Natural Cleaning to try to get rid of my daughter is asthma symptoms. It worked. No more problems. You can get it here.
http://shackrabbit.com/