It goes beyond mere particle filtration by using algae to replicate artificial photosynthesis, absorbing CO₂ and releasing fresh oxygen into the air. This continuous oxygen production makes OceanTree an ideal choice for enclosed spaces, especially where CO₂ buildup can affect productivity and health, providing a sustainable, natural enhancement to ambient air quality.

Primarily focus on removing particles like dust, pollen, and some pollutants through HEPA or carbon filters. However, they don’t add oxygen or reduce CO₂ levels, which noted upto 2200ppm can lead to poor ambient air quality and symptoms like fatigue, headaches, reduced mental clarity and other health issues. This approach limits the overall improvement in indoor air, focusing on cleanliness rather than true health & freshness.