The US government profiles a variety of air quality sensors (VOCs, particulates, etc) and publishes their findings on the South Coast AQMD. These sensors are generally profiled by both lab and field testing and the statistical 'r' values are published.

Some of these sensors are consumer and there are lots of very expensive industrial ones as well. Do note that some sensors may not be "consumer" but are included in consumer products, such as Sensirion sensors being used in consumer products.

Summary - Particulate Sensors

Summary - Gas Sensors