Can you open the window if you have a pollen allergy?

Short answer

Shutting the window completely in pollen season often makes the home’s air heavy. A better way is to move your airing to the hours when pollen is low and fit a pollen-proof filter to the window.

When is pollen heaviest?

• On dry, windy and sunny days
• Usually from late morning until the afternoon
• Just before rain, when the wind picks up

After rain, pollen in the air usually drops; this is a good time to open the window.