Ozone test strips: Quick and easy ozone testing in air. Features: • MN OZONE test strips are designed for quick, convenient and reliable onsite ozone testing. • The easy procedure yields accurate testing results within 10 minutes. • Ozone is a colourless toxic gas. • It is irritating to eyes and mucous membranes and can cause respiratory complaints. • With ozone concentrations increasing world-wide, especially in the summer time, ozone testing becomes more and more important. • An ozone content of 180 μg/m3 in the air is considered as critical value above which sensitive persons should avoid strong physical exertion. • The ozone values published in the media only represent the ozone concentrations in the vicinity of the measuring stations. • However, actual ozone values in other locations can deviate considerably from these published values due to meteorological and chemical influences. • The reasons for such deviations are for wind, solar radiation, exhaust gases from vehicles etc. • For this reason an on-site measurement of ozone concentrations is recommended. • Ozone testing is performed in a wide variety of settings and by multiple different users, such as schools and universities, sports teams, municipal authorities, and regular households. • On site ozone testing is especially important prior to physical activity on sunny and hot days. • MN OZONE test strips are a perfectly suitable and convenient testing device for the orienting determination of ozone concentrations in air. Product data: • Presentation: Box of 12 test strips • Colour reaction: white → brown • Gradation: <90 · 90-150 · 150-210 ·>210 µg/m3 O3