What is Second-hand Smoke?

  • Second-hand smoke consists of particles and vapours that linger and remain in the air for up to 5 hours when a tobacco product is burned. There are 2 types of second-hand smoke; smoke exhaled by smoker (mainstream smoke) and the smoke that coming off the lit end of a cigarette (sidestream smoke).

  • More than 85% of tobacco smoke is invisible.

Why is second-hand smoke harmful to health?

  • A cigarette consist more than 4000 harmful chemical including 90 of the chemicals are known to cause cancer (carcinogenic). Exposure to second-hand smoke (SHS) may cause adverse health effects or diseases like glue ear, meningitis and cot death to children. These chemicals can quickly build to dangerous levels when someone smoke inside a house or car, even after just one cigarette.

  • In a home, second-hand smoke can remain at dangerous levels for up to five hours. Levels can still be high everywhere in the home even if you open the windows or you only smoke in one room.

  • There is no safe level of second-hand smoke when you smoke indoor.

Second-hand Smoke and Children’s Health

Second-hand smoke exposure has been shown to have a number of harmful effects on children’s health:

  • Children and infants are more vulnerable to tobacco smoke than adults. Children have smaller airways, breathe faster and their immune systems are still developing.

  • Tobacco smoke can cause low birth weight in babies which has been associated with coronary heart disease, type 2 adult onset diabetes, and being overweight in adulthood.

  • Middle ear infection in a child is 50% more likely to occur if one parent smokes.

  • Children whose parents smoke at home are twice as likely to have asthma symptoms all year round.

  • Exposure to second-hand smoke is associated with an increased risk of respiratory tract infections such as coughing, wheezing and croup.

  • Children are three times more likely to smoke when they get older if they grow up around smokers.

Why are Children Particularly Vulnerable to Second-hand Smoke?

Children have small, growing lungs, and breathe more deeply and more quickly than adults. Because of this, they can suffer more from the effects of second-hand smoke. For that reason, it’s important to keep children safe from second-hand smoke by never smoking inside the home or car.

Air Quality Measurement Device

The PA-II-SD device is an air quality sensor that measures real-time PM2.5 concentrations for residential, commercial, or industrial use. Built-in WiFi enables the air quality detector to transmit data to the PurpleAir map, where it is stored and made available to any smart device. For locations with limited or no WiFi access, the PA-II-SD PM2.5 measurement detector incorporates an SD card and real-time clock, allowing the sensor to record and store data locally. More specification details at

Indoor Air Quality Device - PurpleAir (PA-II-SD) Installation

Created by Dr Aziemah Zulkifli, this video is sent to the participants for a simple and comprehensive explanation about Indoor Air Quality Device - Purple Air (PA-II-SD) and step by step installation for air quality monitoring in their homes.

Inspiring True Life Story from Smokers

Presenting, a teaser video of the health campaign resulting from the MySmoke MyFamily Research Project 🤩👨‍👩‍👧‍👦🚭

Let us emulate the Malaysian Heroes who have succeeded in making their homes Smoke Free and at the same time protect all family members who live in the same house from the dangers of cigarette smoke!