Radon measurement devices should be located at least how far from other objects?

Radon measurement devices should be positioned at least 4 inches away from other objects to ensure accurate readings. This distance helps to minimize interference from surrounding materials that could affect the radon concentration measured by the device. When devices are too close to walls, furniture, or other obstacles, they may not capture an accurate representation of the air quality in the environment being tested.

Placing the device with the specified distance allows for adequate air circulation around the device, enabling it to sample air without being influenced by nearby surfaces that could potentially block or alter the flow of air containing radon. This protocol is crucial for effective radon testing, as proper placement directly impacts the reliability and validity of the test results.