Final answer:
To prevent acute asthma attacks, it is important to avoid exposure to tobacco smoke. Limiting outdoor playtime is not sufficient. Using a humidifier can be beneficial if maintained properly.
Step-by-step explanation:
To prevent acute asthma attacks, it is important to avoid exposure to tobacco smoke. Tobacco smoke can trigger asthma symptoms and worsen the condition. Limiting your child's outdoor playtime may not necessarily prevent asthma attacks, as indoor air pollution can also be a trigger. Using a humidifier in your child's room can actually be beneficial, as it helps to moisten the air and ease breathing. However, it is important to maintain the humidifier properly and keep it clean to prevent the growth of mold or bacteria.