For positive RH offset caused by extended high humidity exposure and condensation prevention/removal, baking is effective for removing RH offset. However it typically requires removing the sensor from the system, which is impractical for field applications. The integrated heater offers an alternative in-system method. However, prevention is the best method, especially if heating or baking is not suitable. Another strategy is to optimize enclosure design to minimize exposure to moisture and contamination. Design enclosures so that the RH sensor is not directly under any openings, reducing the risk of water droplets entering the cavity. Use sensors with IP67-rated filter membranes (such as the HDC2022 or HDC3022) to protect against water ingress and particulate contamination.

To recover from negative RH offset caused by prolonged exposure to low humidity and high temperatures, rehydrate the sensor per datasheet recommendations. Some RH sensors, like the HDC2x and HDC302x families, have programmable RH offset registers so that if the RH offset cannot be removed, it can be digitally corrected in the sensor.