As spring arrives in Japan, so does the pollen, causing discomfort for those with allergies. However, a new trend of "pollen-free sites" has become popular among allergy sufferers. These destinations offer respite from the pesky pollen, providing an allergy-free environment to enjoy the blossoming season. The locations range from indoor spaces with filtered air to natural areas with minimal pollen-producing plants, offering options for everyone to savor the season sans sneezes.

Pollen allergies, particularly due to cedar trees, are a widespread issue in Japan. It is estimated that about one in four people in Japan suffer from hay fever. The Japanese society places a high value on health and wellbeing. Therefore, news regarding health solutions, such as these pollen-free sites, garners substantial interest and quickly spreads, sparking discussions online and offline.

In the US or EU, pollen allergy is also a common concern, particularly during specific seasons. The concept of designated allergen-free spaces, such as pollen-free sites in Japan, is not as widespread in these regions. Typically, individuals resort to over-the-counter solutions and isolating themselves indoors.