This powerful CO2 box generates a consistent CO2 contribution of 1,200 to 1,500 ppm (parts per million) over a 3-week period. Ideal for indoor grow rooms up to 1.20 x 1.20 x 1.20 meters in size, it ensures optimal CO2 levels for accelerated plant growth and increased plant yields & metabolism. Enhance your indoor cultivation experience with our reliable CO2 Boost Pack.