Spring encourages many people to air out their homes more frequently.
However, according to Maison & Travaux, it is not always a good idea to open windows at certain times in March if you suffer from allergies.
Particles in the air
The composition of the air changes throughout the day. Plants release particles at different times, depending on the species and conditions.
Some plants begin early in the morning, while others release particles later in the day.
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Wind and humidity also affect how much is in the air and how long it remains there.
The role of the weather
Rain can temporarily improve air quality, as particles are pushed down toward the ground, making the air more comfortable.
Conversely, thunderstorms can worsen the situation. During storms, particles can become smaller and more easily enter the body. According to Maison & Travaux, it is therefore important to monitor the weather.
Early morning and late evening are often the best times to ventilate, as levels are typically lower.
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A specific time window
A buildup occurs in the air around midday. Between 11 a.m. and 4 p.m., particles become more concentrated because heat and air movement keep them suspended.
This means they can more easily enter the home if windows are open. At the same time, other substances in the air can amplify the effect.
For this reason, opening windows during this period in March is discouraged, especially for individuals who are sensitive to airborne particles.
Sources: Maison & Travaux.
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