Wuhan new home decoration in addition to indoor formaldehyde treatment of aldehyde odor regulations regarding indoor air quality showed that the concentration of formaldehyde in indoor air should not exceed 0.1 milligrams per cubic meter, but the majority of our houses indoor air conditions are not ideal, in which formaldehyde, benzene, Most indicators of ammonia and other pollutants exceed several times, for a great impact on people's health. Grenada Environmental Engineering Co., Ltd. is a music to indoor air testing, governance-based environmental protection enterprises, for the majority of River City people to provide high-quality green living environment, in a quiet bay and rest in a deep breath. http://www.green-happy.com Grenada music environmental engineering company has excellent professional team, excellent purification treatment technology, advanced equipment, reputable reputation, caring and thoughtful service, effectiveness of governance experience, and make sure that once governance, clear air source net, tackling the problem. Environmental Services: decoration pollution control project, the long-term indoor air purification, interior air purification, home cleaning and disinfection services, air purifiers lease. Formaldehyde concentration and corresponding symptoms of formaldehyde with a pungent odor, low concentrations can smell human olfactory threshold for formaldehyde is usually 0.06? 0.07mg / m3. But there are large individual differences, it was up to 2.66mg / m3. Symptoms caused by formaldehyde may be similar to the symptoms of the common cold, flu, or other indoor air pollutants caused. If we similar symptoms, it is recommended to see if it is considered as caused by formaldehyde in the living environment.