cigarette carbon monoxide The main harmful components of environmental tobacco smoke. CO, The impact of CO monitoring

Adhesive: permanent

Delivery to collection point by Chronopost relay in 5 to 7 working days

Infection Several different types of infection chronic bronchitis pneumonia pertussis or whopping cough A severe infection known as respiratory syncytial virus (RSV) All of the above infections can increase the production of mucus in the airways, which triggers coughing

As a stimulant, it makes most people have more energy and feel happy and alert

To represent smoking exposure, we created cotinine categories using the newly recommended cutoff point of 3 ng/mL, as suggested by a previous study (19), to differentiate smokers from non-smokers