One of the key characteristics of Photocatalyst coatings is that they have a long-lasting effect. Unlike other air purification methods that only work once, Photocatalyst coatings keep working continuously as long as they are exposed to light. 

Additionally, they are highly effective in removing VOCs (volatile organic compounds) and other harmful pollutants from the air. The more VOCs there are, the more the Photocatalyst coating can do to neutralize them. This makes it an ideal solution for improving indoor air quality in homes and offices. 

Furthermore, the Photocatalyst coating has been shown to have a strong antibacterial and anti-viral effect, helping to eliminate harmful pathogens and reduce the spread of diseases.

The photocatalyst remains active and effective as long as it is exposed to light, until the coatings are depleted.