Improve Indoor Air Quality: The clean air really matters for our health, and the indoor air quality is usually worse than the outdoors’, however we spend most the time indoor. Use this bulb helps create a healthier living space for you and your family all day long. Efficient Air Purification: Delivers rapid purification performance, refreshing up to 12,187 square feet of air in just 15 minutes—ideal for both residential and commercial use, from offices, hospitals, schools, fitness centers to homes. Adjustable Output: Tailor the airflow to your specific environment with adjustable output ranging from 1000 to 6500 CFM. Use the fine-tuning screw at the base of the unit to set the desired level, and ensure it’s securely tightened for optimal performance. Easy to Install: Designed for ease of use, this replacement bulb can be installed in just a few steps. Simply unscrew the outer shell, replace the old bulb, reassemble the unit, and verify that the indicator light (red or green) is illuminated to ensure proper operation. Compatible Model: Precisely compatible with REME-HALO air purifier system, this replacement bulb fits Part #PHIC-RH. Please note, it is not compatible with PHIC-REME-LED systems to ensure proper functionality and efficiency. Precisely engineered for the REME-HALO air purifier system, this replacement bulb fits Part #PHIC-RH. Not compatible with PHIC-REME-LED system