This test aims to determine the level of HCHO (formaldehyde) and TVOC (Total Volatile Organic Compound) in indoor air and furnishings.
Formaldehyde & VOC
Formaldehyde (HCHO) is dangerous to human health. Building materials, home furnishings pressed woods, wood floor finishes, paints, upholstery fabrics are often the major sources in homes because materials off-gas formaldehyde over time.
World Health Organization defined volatile organic compound (VOC) as any organic compound whose boiling point is in the range from 50 °C to 250 °C. VOC can be found within nature environment, furnishings, building materials, glues and carpets. Formaldehyde, acetaldehyde and benzene are examples of VOC.
Where should I test?
Samplings will be carried out in each room / indoor area at your home.
We adopt RAE® VOC Monitor and RAE® CH2O Monitor to perform the TVOC and formaldehyde tests.
HK Environmental Protection Department & Finnish Society of Indoor Air Quality and Climate set the TVOC at 200 & 600 μg/m3 or 0.087 ppm & 0.261 ppm as Excellent Class and Good Class respectively.
WHO (2000), Guidelines for Air Quality suggests that the level should below < 100 µg/m3 to avoid acute effects in such individuals.