Should I open the windows during pollen season?
If you’re someone who sneezes by just looking at a blooming tree, this question probably crosses your mind every spring. We can all agree that fresh air feels amazing, but for allergy sufferers, opening the windows from the months March to September can be anxiety inducing. The answer isn’t a simple yes or no to opening windows, it's about balance and depends on timing, weather, and how to best manage your indoor climate.
Pollen levels fluctuate throughout the day and are seasonal. During pollen season, the levels are usually highest early in the morning and late afternoon when plants are actively releasing pollen.
How to keep pollen out of your home
Even if you need to open up for some fresh air, there are ways to stop pollen from overstaying its welcome:
⛅Check a pollen forecast or local air quality app before airing out your home. Midday or after rainfall is often safest.
🌬️ Using an air purifier with a HEPA filter or an HVAC (ventilation) system greatly reduces your indoor pollen levels even in the height of allergy season.
👕 Change and wash your clothes after spending time outside during pollen season. Pollen loves to cling to fabrics, it’s evolved to cling to bees after all.
🪟 If your CO₂ levels are creeping up, even 10–15 minutes of open windows can help freshen things up without letting in too much pollen, especially after rain or when the air outside is still or without wind.
💡 Tip from Birdie: Use an air quality monitor and a pollen tracker to keep an eye on both CO₂. If your CO₂ levels are good during the day, you may not need to open your windows and risk letting too much pollen in.
