陀住BB時已經有百老滙sales叫我買，但當時唔覺得有需要，近來日本同事成日話瞓教俾嘢咬講開有冇咩對策，google吓又見返Raycop，原理係用UV-C殺菌殺蟎，睇eHOW話:Dr. Needham reported in the paper “Ultraviolet C Exposure is Fatal to House Dust Mite Eggs" that exposure of dust mite eggs to UV-C for 5 seconds leads to near 100 percent mortality.
Using probiotics both during and after pregnancy may reduce your child’s risk of eczema. According to a large study performed by the University of Turku and published in the “Journal of Allergy and Clinical Immunology" in 2002, the risk of developing eczema in infants whose mothers took probiotics during pregnancy and breastfeeding was significantly less than infants whose mothers took a placebo. Protection against eczema was limited to an infant’s first two years of life. Research by Australia’s Royal Children’s Hospital in 2008 suggests that probiotics are an ineffective treatment for childhood eczema. Although probiotics during pregnancy may prevent the onset of eczema during the first two years of life, there is no evidence to suggest that consumption treats the skin disease.
FYI: Sterilization Time
Sterilization time in second = Sterilization Dosage/Radiation Intensity Sterilization Dosage (uW, sec/cm2) = UV intensity * Exposure Time Radiation Intensity (uW/cm2) = UV Intensity / cm2. Miniature Quartz Cold Cathode lamps generate min. 5mW/cm2 (typical 6mW/cm2) One of the most resistant virus is Tuberculosis. The energy needed for total destruction is 10mW/cm2. The efficient sterilization dosage for a certain surface that should be sterilized is: 10mWsec/cm2 / 5mW/cm2 = 2 seconds. This should be the total time that surface we want to disinfect should remain under UV radiation. To calculate the sterilization dosage for water or air we may need to take in account a certain number of factors such us: lamp intensity radiation, intensity variation within distance, the chamber size, the flow rate, the absorbtion coefficient of the media, etc