Indoor Environment During Pollen Season: How to Use Air Purifiers and Humidity

Keep pollen at the door

Take off outer clothing at the entrance, wash your hands and face when you come in, do nasal saline irrigation, and dry clothes indoors. These steps can greatly reduce the amount of pollen brought inside on people. Keep the bedroom door closed during ventilation periods to reduce pollen spreading into the sleeping area.

How to use an air purifier

• Choose a model with a high-efficiency filter, and match the airflow to the room size
• Use it when windows are closed, and replace the filter regularly as instructed to avoid reduced performance once it is saturated
• Do not point the machine directly at the head of the bed, to reduce discomfort from the airflow

Humidity and ventilation

High humidity favours house dust mite and mould, while low humidity may worsen nasal dryness and throat discomfort. It is suggested to use a hygrometer to keep the bedroom at around 50%, open windows briefly each day for fresh air, and do a damp cleaning after ventilation. For people with asthma, a stable indoor environment is often as important as managing medication. If symptoms show seasonal changes, see a doctor again promptly for assessment.

This article is for general information only and is not medical advice. Please follow your doctor's instructions.